Coordination Compounds Questions

We provide coordination compounds practice exercises, instructions, and a learning material that allows learners to study outside of the classroom. We focus on coordination compounds skills mastery so, below you will get all questions that are also asking in the competition exam beside that classroom.

List of coordination compounds Questions

Question No Questions Class
1 Question 21. [Fe(CN).14 and [Fe(H20) 12+ are of different colours in
dilute solutions. Why?
12
2 The total possible coordination isomers
for the following compounds respectively are:
( left.left[boldsymbol{C o}(boldsymbol{e n})_{3}right][boldsymbol{C r}) boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3} )
( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{C u} boldsymbol{C l}_{4}right] )
( left[boldsymbol{N} boldsymbol{i}(boldsymbol{e n})_{3}right]left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{O}_{2}right)_{6}right] )
( A cdot 4,4,4 )
B. 2, 2, 2
( c cdot 2,2,4 )
D. 4, 2, 3
12
3 Which of the following ligand possess only one coordination site?
( mathbf{A} cdot C O_{3}^{2} )
B. ( O^{2-} )
( mathrm{c} cdot mathrm{SO}_{3}^{2-} )
D. ( [O X]^{2} )
12
4 Which of the following pairs of complexes whose aqueous solutions gives pale yellow and white precipitates
respectively with ( 0.1 M A g N O_{3} ? )
( ^{mathbf{A}} cdotleft[P tleft(N H_{3}right)_{4} B r_{2}right] C l_{2} ) and ( left[P tleft(N H_{3}right)_{4} C l_{2}right] B r_{2} )
B. ( left[C oleft(N H_{3}right)_{5} N O_{3}right] B r ) and ( left[C oleft(N H_{3}right)_{5} B rright] N O_{3} )
( mathbf{c} cdotleft[P tleft(N H_{3}right)_{4} C l_{2}right] B r_{2} ) and ( left[P tleft(N H_{3}right)_{4} B r_{2}right] C l_{2} )
D ( cdotleft[mathrm{Co}left(mathrm{NH}_{3}right)_{5} mathrm{NO}_{3}right] mathrm{Cl} ) and ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{5} mathrm{Cl}right] mathrm{NO}_{3} )
12
5 Select the correct I.U.P.A.C. name for
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]left[boldsymbol{C o}(boldsymbol{O} boldsymbol{N} boldsymbol{O})_{6}right] )
A. Hexaamminecobalt(II) hexanitrito-0 cobalt(II)
B. Hexaamminecobalt(III) hexanitrito-N cobaltate(III)
c. Hexaamminecobaltate(III) hexanitrito-0 cobaltate(II)
D. Hexaamminecobalt(III) hexanitrito-0 cobaltate(III)
12
6 Which of the following is a double salt?
A. Carnallite
B. Potassium ferrocyanide
c. Potasium ferricyanide
D. Nesslers reagent
12
7 Glycinato ligand is:
( mathbf{A} )
B. bidentate ligand
C ( . ) two donar sites ( N ) and ( O^{-} )
D. all of the above
12
8 Draw ( 1^{circ} ) alcohol with the empirical
formula ( C_{4} H_{8} O ) is/are:
12
9 The formula for the compound tris ethane ( -1,2-text { diamine }) ) cobalt ( (| I) )
sulphate is :
( ^{mathbf{A}} cdotleft[operatorname{Co}(e n)_{3}right] S O_{4} )
в. ( left[operatorname{Co}(S O)_{4}(e n)_{3}right] )
( ^{mathbf{c}} cdotleft[operatorname{Co}(e n)_{3}right]left(S O_{4}right)_{2} )
D. ( left[operatorname{Co}(e n)_{3}right]_{2}left(S O_{4}right)_{3} )
12
10 The magnetic momentum of
( boldsymbol{K}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{5}(boldsymbol{N} boldsymbol{O})right] ) is:
A. ( 1.73 B M )
В. ( 5.47 B M )
( mathrm{c} .6 .9 mathrm{BM} )
D. zero
12
11 Question 29. Amongst the following ions which one has the highest
magnetic moment value
(a) [Cr(H20).1+ (b) [Fe(H20)]2+ (c) [Zn(H20),12+
12
12 A number of ( X-X ) bond exists in
which of the following compounds
having the general form of ( boldsymbol{X}_{2} boldsymbol{H}_{6} ? ) This question has multiple correct options
( mathbf{A} cdot B_{2} H_{6} )
в. ( C_{2} H_{6} )
c. ( A l_{2} H_{6} )
D. ( operatorname{si}_{2} H_{6} )
12
13 What is hybridization?
A. The mixing of two or more atomic orbitals to form new orbitals that describe the covalent bonding in molecules.
B. The mixing of electrons in the electron sea model to account for the number of bonds in a molecule.
C. The mixing of two or more atomic orbitals to form new orbitals that describe the location of electrons in
atoms.
D. The mixing of two or more molecules
E. The mixing of two or more atoms to make a new compound or molecule.
12
14 In which of the compound given below contains more than one kind of
hybridization ( left(s p, s p^{2}, s p^{3}right) ) for carbon:
A ( cdot C H_{3} C H_{2} C H_{2} C H_{3} )
в. ( C H_{3}-C H=C H-C H_{3} )
( mathrm{c} cdot C H_{2}=C H-C H=C H_{2} )
D. ( H-C equiv C-H )
12
15 What is coordinate bond? 12
16 Explain the difference between a double-salt and a complex, giving an example in each case. 12
17 For a tetrahedral complex ( left[M C l_{4}right]^{2-}, ) the
spin-only magnetic moment is 3.83 BM.
The element ( M ) is:
A. ( C o )
в. ( C u )
c. ( M n )
D. ( F e )
12
18 According to Werner’s theory of
coordination compounds:
A. primary valency is ionisable
B. secondary valency is ionisable
C . primary and secondary valencies are ionisable
D. neither primary nor secondary valency is ionisable
12
19 Which of the following statement is true
for the complex, ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{B r}_{2}right] boldsymbol{N} boldsymbol{O}_{2} ? )
A. It shows ionisation, linkages and geometrical isomerism
B. It does not show optical isomerism because its cis and trans forms each have at least one plane of symmetry.
c. Its ionisation isomers cannot be differentiated by silver nitrate solution
D. (A) and
(B) both
12
20 Which of the following statement(s)
is/are correct?
( mathbf{A} cdot operatorname{In}left[operatorname{CoBr} C l(e n)_{2}right]^{+} ) geometrical isomerism exists,
while optical isomerism does not exist
B. Potassium aquadicyanosuperoxoperoxochromate(III) is IUPAC name of ( K_{2}left[mathrm{Cr}(mathrm{CN})_{2} mathrm{O}_{2}left(mathrm{O}_{2}right)left(mathrm{H}_{2} mathrm{O}right)right] )
C. There are 3 geometrical and 15 stereisomers possible for ( left[P tleft(N O_{2}right)left(N H_{3}right)left(N H_{2} O Hright)(p y)right]^{+} ) and
( left[P t B r C l Ileft(N O_{2}right)left(N H_{3}right)(p y)right] ) respectively
D. ( A ) cis and trans forms are not diastereomers to each
other
12
21 Coordination compounds are mainly known for transition metals.
A. True
B. False
12
22 A hydrocarbon with formula ( mathrm{C}_{8} mathrm{H}_{18} ) gives
one mono chloro derivative. The
hydrocarbon can be :
A. n- Octane
B. 2-Methyl hepatane
c. 2,2,4 -Trimethyl butane
D. 2,2,3,3,- – Tetramethyl butane
12
23 The correct order of energy of orbitals in
octahedral complex is:
A ( cdot d_{x^{2}-y^{2}}=d_{z^{2}}>d_{x y}=d_{y z} )
В . ( d_{z^{2}}>d_{x y}>d_{x^{2}-y} )
c. ( d_{z^{2}}=d_{x y}>d_{x^{2}-y^{2}} )
D. ( d_{x^{2}-y^{2}}>d_{x y}>d_{y z} )
12
24 According to Werner’s theory of valency
transition metals possesses:
A. only one type of valency
B. two types of valencies
C. three types of valencies
D. four types of valencies
12
25 ( left[P t(G l y)_{2}right] ) can exist as ( c i s-, ) and
trans- isomers. If true enter 1 , else
enter 0
12
26 Chain and position isomerism are shown in:
A . alkane
B. alkene
c. alkynes
D. all of the above
12
27 The compounds ( left[boldsymbol{P t C l}_{2}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right] boldsymbol{B r}_{2} )
and ( left[boldsymbol{P t B r}_{2}left(boldsymbol{N H}_{3}right)_{4}right] boldsymbol{C l}_{2} ) constitute a
pair of:
A. coordination isomers
B. linkage isomers
c. ionisation isomers
D. optical isomers
12
28 What is the correct relationship between the following compound?
[
begin{array}{l}
boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-underset{C H_{3}}{boldsymbol{C}} boldsymbol{H}-boldsymbol{C} boldsymbol{H}_{2}-boldsymbol{C} boldsymbol{H}_{3} \
boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-underset{C H_{3}}{boldsymbol{C}} boldsymbol{H}_{2}
end{array}
]
12
29 Which of the following statements
is/are correct?
This question has multiple correct options
( mathbf{A} cdotleft[C o(p n)_{2} C l_{2}right]^{+} ) forms cis-trans isomers
B . ( left[operatorname{Co}left(N H_{3}right)_{4}left(H_{2} Oright) C lright] B r_{2} ) exhibits both ionization as well as hydrate isomerism.
( mathbf{c} cdotleft[C rleft(g l y_{3}right] ) exhibits both geometrical and optical right. isomerism.
D. ( left[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right] N O_{2} ) exhibits both ionization as well as linkage isomerism.
12
30 Geometrical isomerism can be shown
by:
A ( cdotleft[A g(C N)left(N H_{3}right)right. )
в. ( _{N a_{2}}left[C dleft(N O_{2}right)_{4}right] )
( mathbf{c} cdotleft[P t C l_{4} I_{2}right] )
D. ( left[P t C lleft(N H_{3}right)_{3}right]left[A u(C N)_{4}right] )
12
31 What is an example for a double salt?
A. Cuprammonium sulphate
B. Mohr’s salt
c. Potassium ferricyanide
D. Hexamminecobalt(III) chloride
12
32 n-Butane and isobutane are a pair of:
A. chain isomers
B. position isomers
c. metamers
D. functional isomers
12
33 In which of the following octahedral complexes of Co (atomic number 27),
will the magnitude of ( Delta_{mathrm{o}} ) be the highest?
( mathbf{A} cdotleft[mathrm{Co}left(mathrm{H}_{2} mathrm{O}right)_{6}right]^{3+} )
B . [Co(NH3) ( _{6} ) ] ( ^{3} )
c. ( left[mathrm{Co}(mathrm{CN})_{6}right]^{3-} )
D ( cdotleft[mathrm{Co}left(mathrm{C}_{2} mathrm{O}_{4}right)_{3}right]^{3} )
12
34 Define linkage and ionisation
isomerism?
12
35 Which of the following statements is
correct for ( left[M n(C N)_{6}right]^{3-} ) according to
valence bond theory?
( mathbf{A} cdot d^{2} s p^{3}, ) inner orbital complex, paramagnetic, 2.87 B.M.
B. ( d^{2} s p^{3}, ) inner orbital complex, diamagnetic, zero magnetic moment.
C ( cdot d^{2} s p^{3} ), outer orbital complex, paramagnetic, 3.87 B.M.
D. ( d s p^{2} ), outer orbital complex, diamagnetic, zero magnetic moment.
12
36 An ion ( M^{2+}, ) forms the complexes
( left[Mleft(H_{2} Oright)_{6}right]^{2+},left[M(e n)_{3}right]^{2+} ) and
( left[M B r_{6}right]^{4-} . ) The colour of the complexes
will be
respectively.
A. green, blue and red
B. blue, red and green
c. green, red and blue
D. red, blue and green
12
37 What is the hybridisation of the metal in following complex?
( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{3+} )
A ( cdot d^{3} s p^{2} )
в. ( d s p^{4} )
( mathbf{c} cdot d^{2} s p^{3} )
D. None of these
12
38 Butene when treated with chlorine at
about ( 500^{circ} mathrm{C} ) forms:
A ( cdot ) МесН ( _{2} ) СНС। ( -mathrm{cH}_{2} mathrm{c} )
B. Месн(С)-СН=СН ( _{2} )
( mathrm{c} cdot mathrm{CICH}_{2} mathrm{CH}_{2} mathrm{CH}=mathrm{CH}_{2} )
D. ( operatorname{Me} mathrm{C}left(mathrm{Cl}_{2}right) mathrm{CH}=mathrm{CH}_{2} )
12
39 anae following complex ions in increasing order of crystal field
0,32 Arranget
splitting energy (4.).
Cr(C).19-. [Cr(CN)618- [Cr(NH). 13+
ben
12
40 Hybridization and magnetic behaviour of complex ( boldsymbol{K}_{mathbf{4}}left[boldsymbol{M} boldsymbol{n}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right] ) is:
A ( cdot d^{2} s p^{3}, ) diamagnetic
B . ( d^{2} s p^{3} ), paramagnetic
( mathrm{c} cdot s p^{3} d^{2}, ) diamagnetic
D. ( s p^{3} d^{2} ), paramagnetic
12
41 Minimum number of carbon atoms
required for an alkane to show any kind of isomerism.
12
42 Indicate the types of isomerism exhibited by the following complex and
draw the structure of this isomer.
( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)left(boldsymbol{H}_{2} boldsymbol{O}right) boldsymbol{C l}_{2}right] )
12
43 One mole of a complex compound
( boldsymbol{C} boldsymbol{o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{C l}_{3} ) gives three moles of
ions on dissolution in water. One mole
of the same complex reacts with two
moles of ( A g N O_{3} ) and yields two moles
of ( A g C l(s) . ) The complex is:
A ( cdotleft[mathrm{Co}left(mathrm{NH}_{3}right)_{4} mathrm{Cl}_{2}right] mathrm{Cl} . mathrm{NH}_{3} )
B . ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{4} mathrm{Cl}right] mathrm{Cl}_{2} . mathrm{NH}_{3} )
( mathbf{c} cdotleft[operatorname{Co}left(N H_{3}right)_{5} C lright] C l_{2} )
D ( cdotleft[operatorname{Co}left(N H_{3}right)_{3} C lright] C l_{3} .2 N H_{3} )
12
44 Octahedral complex of ( N i(I I) ) must be:
A. inner orbital
B. outer orbital
c. inner or outer orbital depending upon the strong or weak field ligand
D. none of these
12
45 Ethylenediamine displaces ( H_{2} O ) in the
complex ( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{3+} ) in three steps.
[
left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{3+}+boldsymbol{3} boldsymbol{e} boldsymbol{n} rightarrowleft[boldsymbol{F} boldsymbol{e}(boldsymbol{e} boldsymbol{n})_{3}right]^{3+}+
]
( 6 H_{2} O )
Stepwise formation constants are
[
begin{array}{l}
log K_{1}=4.34 \
log K_{2}=3.31 \
log K_{3}=2.05
end{array}
]
Overall formation constant is ( boldsymbol{A} times mathbf{1 0}^{boldsymbol{B}} )
( A+B ) is
12
46 Which isomer of ( C_{6} H_{14} ) has two
isopropyl groups?
A. 2-Methylpentane
B. 3-Methylpentane
c. 2,3 -Dimethylbutane
D. 2,2-Dimethylbutane
12
47 Aqueous solution of nickel sulphate on treating with pyridine and then adding a solution of sodium nitrate gives dark
blue crystals of:
( mathbf{A} cdotleft[N i(p y)_{4}right] S O_{4} )
B ( cdotleft[N i(p y)_{2}left(N O_{2}right)_{2}right. )
c. ( left[N i(p y)_{4}left(N O_{2}right)_{2}right. )
D. ( left[N i(p y)_{3}left(N O_{2}right)right]_{2} S O_{4} )
12
48 Write the formula of the following compounds:
(i) Potassium trioxalatoaluminate (III)
(ii) Hexaaquairon(II) sulphate.
12
49 Assertion
( mathbf{C}-mathbf{C} ) bond length in zeise’s salt is same
as ethylene.
Reason
Double bond is Ionger as compare to
single bond.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
12
50 The total number of isomers shown by
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}left(boldsymbol{N} boldsymbol{O}_{2}right)_{2}right]left(boldsymbol{N} boldsymbol{O}_{3}right) ) complex is:
A . 10
B. 6
( c cdot 4 )
D. 12
12
51 The complex studied by Werner had a composition corresponding to the
formula ( P t C l_{4} .2 K C l . ) From electrical
conductance measurements, he
determined that each formula unit
contained three ions. He also found that
silver nitrate did not give a precipitate of ( A g C l ) with this complex. Write a
formula for this complex that agrees with this information.
12
52 The correct energy level diagram for ( left.boldsymbol{operatorname { C o }}(boldsymbol{C N})_{6}right]^{3-} )
( c )
12
53 ( H C N ) and ( H N C ) are:
A. metamers
B. functional isomers
c. positional isomers
D. chain isomers
12
54 How many EDTA molecules are required to make an octahedral complex with a
( C a^{2+} ) ion?
A. Six
B. Three
c. one
D. Two
12
55 Which of the following complexes will give a white precipitate on treatment with a solution of barium nitrate?
( mathbf{A} cdotleft[operatorname{Cr}left(N H_{3}right)_{4} S O_{4}right] C l )
в. ( left[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right] N O_{2} )
c. ( left[operatorname{Cr}left(N H_{3}right)_{4} C l_{2}right] S O_{4} )
D. ( left[C r C l_{2}left(H_{2} Oright)_{4}right] C l )
12
56 Zeise’s salt is :
A ( cdot operatorname{Fe}left(eta^{5}-C_{5} H_{5}right)_{2} )
B ( cdot operatorname{Cr}left(eta^{6}-C_{6} H_{6}right)_{2} )
c. ( _{K}left[P tleft(eta^{2}-C_{2} H_{4}right) C l_{3}right] )
D. ( Kleft[P tleft(eta^{2}-C_{2} H_{4}right)_{2} C l_{2}right] )
12
57 The I.U.P.A.C name of the coordination
compound ( boldsymbol{K}_{3}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right] ) is :
A. Potassium hexacyanidoferrate(II)
B. Potassium hexacyanidoferrate(III)
c. Potassium hexacyanidoiron(II)
D. Tripotassium hexacyanidoiron(II)
12
58 Consider the following statements:
According the Werner’s theory.
(1) Ligands are connected to the metal ions by covalent bonds.
(2) Secondary valencies have directional properties
(3) Secondary valencies are non-
ionisable
A ( cdot 1,2 ) and 3 are correct
B. 1,2 are correct
( c cdot 2 ) and 3 are correct
D. 1,3 are correct
12
59 Number of possible isomers for the
complex ( left[text { Co }(e n)_{2} C l_{2}right] C l ) will be
A .
B. 3
( c cdot 4 )
D. 2
12
60 Ethylidene chloride and ethylene dichloride are:
A. chain isomers
B. position isomers
c. functional isomers
D. metamers
12
61 According to Aufbau principle, the correct order of energy of ( 3 d, 4 s ) and ( 4 p ) orbitals is :
A. ( 4 p<3 d<4 s )
в. ( 4 s<4 p<3 d )
c. ( 4 s<3 d<4 p )
D. ( 3 d<4 s<4 p )
12
62 In which of the following, racemic mixture is obtained on mixing its mirror images in 1: 1 molar ratio?
( mathbf{A} cdotleft[C r(e n)_{3}right]^{3+} )
B ( cdotleft[N i(D M G)_{2}right] )
c. ( operatorname{Cis}-left[mathrm{Cu}(text { Gly })_{2}right] )
D. All of the above
12
63 How many isomers of ( C_{5} H_{11} O H ) will
be primary alcohol?
( A cdot 2 )
B. 3
( c cdot 4 )
D. 5
12
64 In a mononuclear tetrahedral complex,
optical isomerism cannot arise, unless:
A. all ligands are same
B. all ligands are different
c. the ligands are of two types
D. the ligands are of three types
12
65 Name in IUPAC System:
(a) ( boldsymbol{K}_{2}left[boldsymbol{P t C l}_{6}right] )
(b) ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right] boldsymbol{C l}_{3} )
12
66 Q.19 Which of the following complexes are homoleptic:
(a) [Co(NH3)]3+
(c) [Ni(CN)472-
(d) [Ni(NH3, C12]
(b) [CO(NH3)4Cl21+
Aa)
12
67 ( underbrace{g_{k_{n}}^{n} p_{n}} ) 12
68 Which of the following sets of examples and geometry of the compounds is not correct?
A . Octahedral – ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{6}right]^{3+},left[mathrm{Fe}(mathrm{CN})_{6}right]^{3} )
B. Square planar – ( left[N i(C N)_{4}right]^{2-},left[C uleft(N H_{3}right)_{4}right]^{2} )
C. Tetrahedral- ( left[N i(C O)_{4}right],left[Z n C l_{4}right]^{2} )
D. Trigonal bipyramidal – [Fe ( left.left(N H_{3}right)_{6}right]^{2+},left[C u C l_{4}right]^{2-} )
12
69 Hexaamminenickel(II)
hexanitrocobaltate(III) can be written
as?
( mathbf{A} cdotleft[N ileft(N H_{3}right)_{6}right]_{2}left[C oleft(N O_{2}right)_{6}right]_{3} )
( mathbf{B} cdotleft[N ileft(N H_{3}right)_{6}right]_{3}left[C oleft(N O_{2}right)_{6}right]_{2} )
( mathbf{c} cdotleft[N ileft(N H_{3}right)_{6}right]left[C oleft(N O_{2}right)_{6}right] )
D. ( left[N ileft(N H_{3}right)_{6}left(N O_{2}right)_{6}right] C o )
12
70 Number of chiral centre present in cyclic structure of glucose: 12
71 Find the number of total possible
ionization isomers in ( left[mathrm{Pt}left(mathrm{NH}_{3}right)_{4} mathrm{Cl}_{2}right] mathrm{Br}_{2} )
12
72 How many structural isomers are there
of trichloropropane, ( C_{3} H_{5} C l_{3} ? )
( A cdot 3 )
B. 4
( c .5 )
D. 6
12
73 How many unpaired ( e^{-} ) are present in ( left[mathrm{Ni}(mathrm{CN})_{4}right]^{2-} ? )
A .
B. 2
( c )
D. 3
12
74 In which case(s) does carbocation
formed after protonation undergo resonance?

This question has multiple correct options
( A )
( (A) )
в.
(B)
( c )
( (c) )
( D )
( (D) )

12
75 The correct order of the calculated spinonly magnetic moments of complexes
(A) to (D) is:
( (A) N i(C O)_{4} )
(B) ( left[boldsymbol{N} boldsymbol{i}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right] boldsymbol{C l}_{2} )
( (mathrm{C}) N a_{2}left[N i(C N)_{4}right] )
(D) ( P d C l_{2}left(P P h_{3}right)_{2} )
A ( cdot(C)<(D)<(B)<(A) )
B. ( (C) approx(D)<(B)<(A) )
c. ( (A) approx(C)<(B) approx(D) )
D. ( (A) approx(C) approx(D)<(B) )
12
76 Lead poisoning in the body can be removed by:
A. EDTA in the form of calcium dihydrogen salt.
B. Cis-platin
c. zeisse’s salt
D. DMG
12
77 How many primary amines are possible
with the molecular formula ( C_{4} H_{11} N ? )
A .2
B. 3
( c cdot 4 )
D.
12
78 The compounds
( left[boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right] boldsymbol{C l}_{3},left[boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{5}right] boldsymbol{C l} cdot boldsymbol{H}_{2} boldsymbol{O} )
and ( left[boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{4} boldsymbol{C l}_{2}right] boldsymbol{C l} cdot boldsymbol{2} boldsymbol{H}_{2} boldsymbol{O} ) exhibits:
A . linkage isomerism
B. geometrical isomerism.
c. ionization isomerism.
D. hydrate isomerism.
12
79 Which kind of isomerism is exhibited
by octahedral ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{B r}_{2}right] boldsymbol{C l} ? )
A. Geometrical and ionization
B. Geometrical and optical
c. optical and ionization
D. Geometrical only
12
80 Write ( I U P A C ) name of ( left[P t C l_{2}left(N H_{3}right)_{2}right] ) 12
81 For the complex ( left[N i C l_{4}right]^{2-}, ) write
(i) the IUPAC name
(ii) the hybridization type (iii) the shape of the complex.
(Atomic no. of ( boldsymbol{N} boldsymbol{i}=mathbf{2 8}) )
12
82 A complex whose IUPAC name is not
correctly written is :
( mathbf{A} cdot F eleft(sigma-C_{5} H_{5}right)_{2}, ) Bis ( left(eta^{5} text { -cyclopentadienyl liron }(0)right. )
B. ( C rleft(C_{6} H_{6}right)_{2}, ) Bis ( left(eta^{5} ) -benzene)chromium(o) right.
( mathbf{c} cdotleft[C o C l_{2}left(H_{2} Oright)_{4}right] C l .2 H_{2} O )
Tetraaquadichlorocobalt(III)chloride-2-water
D. ( left[Z n(N C S)_{4}right]^{2-} ), Tetrathiocyanato-N-zincate(II)ion
12
83 Number of aromatic rings in ferrocene
is
12
84 Which of the following statements is
incorrect?
A. Alum is a double salt.
B. EDTA salt of calcium is used in the treatment of leadd poisioning.
C. Effective atomic number of the metals in complexes ( left[N i(C O)_{4}right] ) and ( left[F e(C N)_{6}right]^{4-} ) is same
D. Chloridotris (triphenyl phosphine) rhodium(l) is effective heterogeneous catalyst for hydrogenation of alkenes.
12
85 Assertion
According to crystal field theory, during
complex formation, the d- orbitals split
and form two sets of orbitals ( t_{2 g} ) and ( e_{g} )
Reason

Splitting of ( mathrm{d} ) – orbitals occurs only in case of strong field ligand
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect

12
86 Select the correct I.U.P.A.C name for
( boldsymbol{F} boldsymbol{e}_{4}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right]_{3}: )
A. Iron
(III) hexacyanidoferrate (II)
B. Iron
(III) hexacyanidoferrate (III)
( c . ) Iron
(III) hexacyanidoiron (III)
D. Iron
(II) hexacyanidoiron (II)
12
87 EDTA is hexadentate ligand and is used
to remove hardness in water.
A. True
B. False
12
88 Which one of the following is wrongly matched?
A ( cdotleft[C uleft(N H_{3}right)_{4}right]^{2+} ) – Square planar
B . ( left[N i(C O)_{4}right] ) – Neutral ligand
c. ( left[F e(C N)_{6}^{3-}right]-s p^{3} d^{2} )
D. ( operatorname{Co}(e n)_{3}^{3+} ) – Follows EAN rule
12
89 An organic compound contains ( 66 % )
( 13.3 % H ) and the remaining is ( 0 . ) Its
vapour density is 37. The possible number of isomers of all types for the compound is:
A. 6
B. 7
( c cdot 5 )
D. 8
12
90 State whether the given statement is true or false:

Use of ( c i s ) -platin in cancer treatment
also causes severe kidney damage.
A. True
B. False

12
91 write down the formulae of given compound tetra amine zinc(II) nitrate 12
92 ( 10 mathrm{ml} ) of ( mathrm{KMnO}_{4} ) Solution is required it completely oxidise acidic solution of 30
( mathrm{ml} ) of 1.5 Volume strength ( boldsymbol{H}_{2} boldsymbol{O}_{2} )
Calculate normality of ( K M n O_{4} ) Solution:
A. 0.4
B. 0.65
( c cdot 0.8 )
D. 0.19
12
93 Illustrate with example, the difference between a double salt and coordination
compound.
12
94 ( boldsymbol{O}_{3}+boldsymbol{K}_{4}left[boldsymbol{F} boldsymbol{e}left(boldsymbol{C} boldsymbol{N}_{6}right)right] )
What is the product formed?
12
95 Q. 8 The CFSE for octahedral Col.14- is 18,000 cm-1. The CFSE for tetrahedral
[CoCl2]2 will be
(a) 18,000 cm’ (b) 16,000 cm (c) 8,000 cm (d) 20,000 cm
12
96 The co-ordination number of a metal in
co-ordination compound is:
A. same as primary valency
B. sum of primary and secondary valences
c. same as secondary valency
D. none of the above
12
97 There is change in the type of
hybridisation when:
This question has multiple correct options
( mathbf{A} cdot N H_{3} ) combines with ( H^{+} )
B. ( A l H_{3} ) combines with ( H^{-} )
( mathbf{C} cdot N H_{3} ) forms ( N H_{2} )
D. ( operatorname{Si} F_{4} ) forms ( operatorname{Si} F_{4}^{2-} )
12
98 Which of the following is diamagnetic in nature?
( mathbf{A} cdotleft[F e(C N)_{6}right]^{3-} )
B. ( N i C l_{4}^{2} )
( mathbf{c} cdotleft[N i(C O)_{4}right] )
D. ( left[M n C l_{4}right]^{2-} )
12
99 Only two isomeric monochloro
derivatives are possible for (excluding stereo ( ): )
( A cdot n- ) butane
B. 2, 2 – dimethylpentane
c. benzene
D. neopentane
12
100 If the empirical formula of potash alum
is ( K A lleft(S O_{4}right)_{x}, 12 H_{2} O, ) then the value
of ‘x’ in ( boldsymbol{K} boldsymbol{A l}left(boldsymbol{S} boldsymbol{O}_{4}right)_{x}, boldsymbol{1} boldsymbol{2} boldsymbol{H}_{2} boldsymbol{O} ) is:
( A )
B. 2
( c cdot 3 )
D. 4
12
101 Name the types of isomerism shown by the following pairs of compounds:
(i) ( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{P t} boldsymbol{C l}_{4}right] ) and
( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{C u} boldsymbol{C l}_{4}right] )
(ii) ( left[boldsymbol{C o}(boldsymbol{P n})_{2} boldsymbol{C l}_{2}right]^{+} ) and ( left[boldsymbol{C o}(boldsymbol{t n})_{2} boldsymbol{C l}_{2}right]^{+} )
12
102 The number of geometrical isomer(s)
possible for ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{C l}_{2}right] )
(octahedral) is/are:
( A cdot 3 )
B. 2
( c cdot 4 )
D. none
12
103 Which of the following compounds exhibits stereoisomerism?
A. 2-Methylbutene
B. 3-Methylbutane
c. 3-Methylbutanoic acid
D. 2-Methylbutanoic acid
12
104 Which ion produces a small crystal field splitting (a weak ligand field)?
( mathbf{A} cdot I^{-} )
в. ( C I^{-} )
( c cdot F^{-} )
D. All of the above
12
105 Number of ( C l^{-} ) ions satisifying both
primary and secondary valency are in ( C o C l_{3} .5 N H_{3} )
( mathbf{A} cdot mathbf{1} )
B. 2
( c cdot 3 )
D. 4
12
106 The complex ion ( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]^{2+} ) is:
A. tetrahedral and paramagneticç
B. tetrahedral and diamagnetiç
c. square planar and paramagnetiç
D. square planar and diamagnetiç
12
107 Among the following the species having same geometry for central atom are
(i) ( boldsymbol{X} boldsymbol{e} boldsymbol{F}_{mathbf{4}} )
(ii) ( boldsymbol{S} boldsymbol{F}_{mathbf{4}} )
(iii) ( left[N i C l_{4}right]^{2-} )
(iv) ( left[boldsymbol{P d C l}_{4}right]^{2-} )
A. (i) and (iv)
B. (i), (iii) and (iv)
c. (ii) and (iii)
D. (iii) and (iv)
12
108 The correct structure of
ethylenediaminetetraacetic acid (EDTA)
is:
( A )
B.
( c )
( D )
12
109 Which one of the following compounds give only one mono brominated product
( ? )
A. 2-Methylbutane
B. 2,2,2-Diethylpentane
c. 2,2,3,3 -tetramethylbutane
D. 2-Methylpropane
12
110 ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}left(boldsymbol{S} boldsymbol{O}_{4}right)right] boldsymbol{B} boldsymbol{r} ) and
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{B r}right] boldsymbol{S} boldsymbol{O}_{4} ) are linkage
isomers.
A. True
B. False
12
111 Q. 37 Match the coordination compounds given in Column I with the centrs
metal atoms given in Column II and assign the correct code.
Column 1
Column 11
(Coordination compound) (Central metal atom)
A Chlorophyll
1. Rhodium
B. Blood pigment
2. Cobalt
C Wilkinson catalyst
3. Magnesium
D. Vitamin B2
4. Iron
Codes
A B C D
A B C D
(a) 3 4 1 2
(6) 3 4 5 1
(c) 4 3 2 1
(d) 3 4 1 2
12
112 IUPAC name for ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{2+} ) is:
A. hexammoniacobaltate(II) ion
B. hexaamminecobaltate(II) ion
c. hexammoniacobalt(II) ion
D. hexaamminecobalt(II) ion
12
113 Draw all of the isomers of an octahedral
complex which has three identical bidentate ligands.
12
114 Choose incorrect stability order:
( left.mathbf{A} cdotleft[C uleft(N H_{3}right)_{4}right]^{2+}<C u(e n)_{2}right]^{2+}<[C u(text {trien})]^{2+} )
B. ( left[F eleft(H_{2} Oright)_{6}right]^{3+}<left[F eleft(N O_{2}right)_{6}right]^{3+}<left[F eleft(N H_{3}right)_{6}right]^{3+} )
( mathbf{c} cdotleft[operatorname{Co}left(H_{2} Oright)_{6}right]^{3+}<left[operatorname{Rh}left(H_{2} Oright)_{6}right]^{3+}<left[operatorname{Ir}left(H_{2} Oright)_{6}right]^{3+} )
( mathbf{D} cdotleft[C rleft(N H_{3}right)_{6}right]^{1+}<left[C rleft(N H_{3}right)_{6}right]^{2+}<left[C rleft(N H_{3}right)_{6}right]^{3+} )
12
115 Formula of
diamminediaquadichloroplatinum (IV)
bromide is ( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}left(boldsymbol{H}_{2} boldsymbol{O}right)_{2} boldsymbol{C l}_{2}right] boldsymbol{B} boldsymbol{r}_{2} )
If true enter 1 , else enter 0 .
12
116 The sum of coordination number and
oxidation number of the metal ( M ) in the
complex ( left[M(e n)_{2}left(C_{2} O_{4}right)right] C l ) (where ( e n ) is ethylenediamine) is :
A. 7
B. 8
( c cdot 9 )
D.
12
117 The I.U.P.A.C name for ( boldsymbol{K}_{mathbf{3}}left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{O}_{2}right)_{boldsymbol{6}}right] ) is
A. Potassium(I) hexanitrocobaltate (II)
B. Potassium(I) hexanitrocobaltate (IV)
c. Potassium hexanitrocobalt (0)
D. Potassium hexanitritocobaltate (III)
12
118 The number of structural isomer for an
alkane with a molecular weight 72 is:
A .2
B. 3
( c cdot 4 )
D. 5
12
119 Which of the following acts as a ligand but does not possess any unshared pair of electrons?
A. ( C_{2} H_{4} )
в. ( N H_{3} )
( c cdot e n )
D. ( C N^{-} )
12
120 Co-ordination compounds have great importance in biological systems. In this context which of the
following statements is incorrect?
A. Chlorophylls are green pigments in plants and contain calcium
B. Haemoglobin is the red pigments of blood and contains iron
c. Cyanocobalamin is vitamin B12 and contains cobalt
D. Carboxypeptidase-A is an enzyme and contains zinc
12
121 The number of complexes that can
be can be made with varying ( boldsymbol{N} boldsymbol{H}_{3} ) ligands to satisfy primary and secondary valencies of platinum are:
Complex; ( left[P t C l_{4} cdot x N H_{3}right] )
A. 5
B. 3
( c cdot 4 )
D.
12
122 What methods could be used to
distinguish between cis and trans isomer of a complex?
12
123 In which of the following, the chemical formula and the name are incorrectly
matched?
A ( cdot_{K}left[P tleft(N H_{3}right) C l_{5}right] ) – potassium
amminepentachloroplatinate(IV)
в. ( left[A g(C N)_{2}right]^{-}- ) dicyanoargentate (1) ion
( c )
( K_{3}left[C rleft(C_{2} O_{4}right)_{3}right] ) – potassium trioxalatochromate(II)
D. ( _{N a_{2}}[N i(E D T A)] ) – sodium
ethylenediaminetetraacetonickelate(IV)
12
124 The magnitude of the magnetic moment (spin only) of ( left[N i C l_{4}right]^{2-} ) will be?
A. 2.82 В.M.
B. 3.25B.M.
c. 1.23 В.М.
D. 5.64 В.М.
12
125 Which one of the following species does not represent cationic species of vanadium formed in aqueous solution?
A ( cdot V O_{2}^{+} )
B. ( V O^{2+} )
c. ( left[Vleft(H_{2} Oright)_{6}right]^{3+} )
D. ( V O_{2}^{2+} )
12
126 IUPAC name of ( boldsymbol{N} boldsymbol{a}_{3}left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{O}_{2}right)_{6}right] ) is:
A. Sodium cobaltinitrite
B. Sodium hexanitrocobaltate(III)
c. Sodium hexanitrocobalt(III)
D. Sodium hexanitrocobaltate
12
127 Which of the following statement is true about the complex ( left[boldsymbol{C r} boldsymbol{C l}_{3}(boldsymbol{O H})_{2}left(boldsymbol{N} boldsymbol{H}_{3}right)right]^{2-} ) ion?
This question has multiple correct options
A. It has three geometrical isomers.
B. Only one space isomers is optically active and remaining are inactive
c. There are total four space isomers.
D. The magnetic moment of complex ion is 3.89 BM.
12
128 The correct labeling of different terms
used in coordination compounds is:
A. (i) Central atom, (ii) lonisation sphere, (iii) coordination number,
(iv) Ligands
B. (i) Ligands,
(ii) Coordination number, (iii) Valency, (iv) Ionisation sphere
C . (i) lonisation sphere
(ii) Ligands, (iii) Coordination number, (iv) Central atom
D. (i) Ligands,
(ii) lonisation sphere, (iii) Coordination number, (iv) Central atom
12
129 Three ketones with the formula ( C_{5} H_{10} O )
are
12
130 The compound ( left[boldsymbol{P t} boldsymbol{C l}_{2}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}right] ) can
form:
A. geometrical isomers.
B. coordination isomers.
c. linkage isomers.
D. optical isomers.
12
131 Which of the following coordination compounds will give precipitate with an
aqueous solution of ( A g N O_{3} ? )
( mathbf{A} cdotleft[C rleft(N H_{3}right)_{6}right] C l_{3} )
B ( cdotleft[C rleft(N H_{3}right)_{3}right] C l_{3} )
( mathbf{c} cdotleft[operatorname{Cr}left(N H_{3}right)_{4}right] S O_{4} )
D. ( N a_{3}left[C r(C N)_{6}right] )
12
132 How does ( K_{2}left[P t C l_{4}right] ) get ionized when
dissolved in water? Will it form
precipitate when ( A g N O_{3} ) solution is added to it? Give a reason for your
answer
12
133 Structural isomerism only should be considered with answering this question. All the isomeric alcohols with the
molecular formula ( C_{5} H_{12} O ) are added
separately to warm alkaline aqueous iodine.

How many of the isomers give a yellow
precipitate?
A . 0
B. 1
( c cdot 2 )
D. 3

12
134 How many coordination isomer are
possible for the following compound? (excluding the given structure of molecule)
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{3+}left[boldsymbol{C r}left(boldsymbol{N O}_{2}right)_{6}right]^{3+} )
12
135 The IUPAC name of ( K_{2}left[N i(C N)_{4}right] ) and
( K_{2}left[N i(C l)_{4}right] ) are:
A. potassium tetracyanonickelate(II), potassiumtetrachloronickelate(II)
B. tetracyanopotassiumnickelate(II),tetrorachlropotassic
C. tetracyanonickel(II), tetrachlornickel(II)
D. potassium tetracyanonickel(II), potassiumtetrachloronickel(II)
12
136 Hexa ammine nickel (II) hexa nitro
cobaltate (III) can be written as:
( mathbf{A} cdotleft[N ileft(N H_{3}right)_{6} C oleft(N O_{2}right)_{6}right] )
B . ( left[N ileft(N H_{3}right)_{6}right]_{3}left[C oleft(N O_{2}right)_{6}right]_{2} )
c. ( left[N ileft(N H_{3}right)_{6}right]left[C oleft(N O_{2}right)_{6}right]_{2} )
D. ( left[N ileft(N H_{3}right)_{6}left(N O_{2}right)_{6}right] C o )
12
137 The correct order for the wavelength of absorption in the visible region is:
( mathbf{A} cdotleft[N ileft(N O_{2}right)_{6}right]^{4-}<left[N ileft(N H_{3}right)_{6}right]^{2+}<left[N ileft(H_{2} Oright)_{6}right]^{2+} )
B. ( left[N ileft(N O_{2}right)_{6}right]^{4-}<left[N ileft(H_{2} Oright)_{6}right]^{2+}<left[N ileft(N H_{3}right)_{6}right]^{2+} )
( ^{mathbf{C}}left[N ileft(H_{2} Oright)_{6}right]^{2+}<left[N ileft(N H_{3}right)_{6}right]^{2+}<left[N ileft(N O_{2}right)_{6}right]^{4-} )
D. ( left[N ileft(N H_{3}right)_{6}right]^{2+}<left[N ileft(H_{2} Oright)_{6}right]^{2+}<left[N ileft(N O_{2}right)_{6}right]^{4-} )
12
138 Stability constants of ( left[boldsymbol{C d}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right]^{2-} ) and
( left[N i(C N)_{4}right]^{2-} ) are ( 1.28 times 10^{17} ) and ( 1.0 times )
( 10^{31} ) respectively. Which is more stable?
( mathbf{A} cdotleft[N i(C N)_{4}right]^{2} )
B . ( left[C d(C N)_{6}right]^{2} )
c. Both are equally stable
D. None of the above
12
139 Which of the following isomerisms is are shown by the complex.
( left[operatorname{CoCl}_{2}left(O H_{2}right)_{2}left(N H_{3}right)_{2}right] B r ? )
A. Ionization
B. Linkage
c. Geometrical
D. optical
12
140 The IUPAC name for the complex
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{O}_{2}right)left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}right] boldsymbol{C l} 2 ? )
A. nitrito-N-pentamminecobalt
(III) chloride
(II) chlorid
B. nitrito-N-pentamminecobalt
c. pentammienenitrito-N-cobalt (II) chloride
D. none
12
141 The correct name of the compound
( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left(boldsymbol{N} boldsymbol{O}_{3}right)_{2} ) according to IUPAC
system is:
A. cuprammonium nitrate
B. terrammine copper(II) dinitrate
c. tetrammine copper(II) nitrate
D. tetrammine copper(III) dinitrate
12
142 Discuss briefly giving an example in each case the role of coordination
compounds in:
(i) biological systems
(ii) medicinal
chemistry and (iii) analytical chemistry (iv) extraction/metallurgy of
metals.
12
143 What is the IUPAC name of
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}(boldsymbol{O} boldsymbol{N} boldsymbol{O})right] boldsymbol{S} boldsymbol{O}_{4} ? )
A. pentaammine nitrito-0-cobalt
(III) sulphate
B. pentaammine nitro-N-cobalt (III) sulphate
c. pentaamine nitro-0-cobalt (III) sulphate
D. pentaammonia nitro-0-cobalt
(III) sulphate
12
144 According to the I. U.P. A. C. nomenclature, sodium nitroprusside is named as :
A. sodium nitro-ferrocyanide
B. sodium pentacyanidonitrosylferrate (II)
c. sodium nitroferricyarride
D. sodium pentacyanonitrosylferrate (III)
12
145 Structural isomers possess the same
molecular formula but a different
arrangement of atoms or groups within the molecule.
A. True
B. False
12
146 Describe the shape and Magnetic
property of ( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{+2} )
( left[boldsymbol{C O}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{+3} &left[boldsymbol{N} boldsymbol{i} boldsymbol{C l}_{4}right]^{-2} )
12
147 Question 2. A coordination compound CrClz. 4H2O precipitates silver
chloride when treated with silver nitrate. The molar conductance of its
solution corresponds to a total of two ions. Write structure formula of the
compound and name it.
12
148 When ( A g N O_{3} ) is added to a solution of
( boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{C l}_{3}, ) the precipitate of ( boldsymbol{A} boldsymbol{g} boldsymbol{C l} )
shows two ionized chloride ions. This
means:
This question has multiple correct options
A. only two chlorine atoms satisfy primary valency and one secondary valency
B. one chlorine atom satisfies primary as well as secondary valency
c. two chlorine atoms satisfy primary valency
D. three chlorine atoms satisfy secondary valency
12
149 Identify isostructural pairs from ( N F_{3}(I), N O_{3}^{-}(I I), B F_{3}(I I I), H_{3} O^{+}(I L )
A . । & ॥, ॥ा & ।
B. I & V, II & III
c. । & ाए, ॥ & ॥
D. I & IV, III & v
12
150 The formula of the compound which gives violet colour in Lassiagnes test for sulphur with sodium nitroprusside is :
A ( cdot N a_{4}left[F e(C N)_{5} N O Sright] )
B . ( N A_{3}left[F e(C N)_{5} N O Sright] )
c. ( operatorname{Na}_{2}left[operatorname{Fe}(C N)_{5} Sright] )
D. ( N a_{4}left[F e(C N)_{4} Sright] )
12
151 The formula of the complex tris (ethylene diamine) cobalt (III) sulphate is:
A ( cdotleft[operatorname{Co}(e n)_{2} S O_{4}right] )
в. ( left[operatorname{Co}(e n)_{3} S O_{4}right] )
( ^{mathbf{c}}:left[C o(e n)_{3}right]_{2} S O_{4} )
D ( cdotleft[C o(e n)_{3}right]_{2}left(S O_{4}right)_{3} )
12
152 Write the name, the structure and the
magnetic behavior of each of the
following complexes:
(i) ( left(boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right) boldsymbol{C l}left(boldsymbol{N} boldsymbol{O}_{2}right)right] )
(ii) ( left(boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{C l}_{2}right] boldsymbol{C l} )
(iii) ( boldsymbol{N} boldsymbol{i}(boldsymbol{C O})_{4} )
12
153 The maximum number of structural
isomers possible for the hydrocarbon
having the molecular formula ( C_{4} H_{6} ) is:
A ( cdot 12 )
B. 3
( c cdot 9 )
D. 5
12
154 The correct name for the complex ion
( left[operatorname{CoCl}(O N)(e n)_{2}right]^{+} ) is :
A. chlorobis(ethylenediamine)nitrito-O-cobaltate (III) ion
B. chlorodiethyldiaminenitrito-O-cobalt (III) ion
C. chloronitrito-O-diethyldiamine cobaltate (III) ion
D. chlorobis(ethylenediamine)nitrito-O-cobalt (III) ion
12
155 Which of the following is considered to be ananticancer species:
( A )
B.
( c )
D.
12
156 Find the crystal field stabilization energy (CFSE) (in kJ/mol) for complex,
( left[T ileft(H_{2} Oright)_{6}right]^{3+} . ) According to CFT, the
first absorption maximum is obtained
at ( 20,3000 mathrm{cm}^{-1} ) for the transition
12
157 (i) Draw the geometrical isomer of
( operatorname{complex}left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2} boldsymbol{C l}_{2}right] )
(ii) On the basis of crystal field theory,
write the electronic configuration for ( boldsymbol{d}^{4} )
ion if ( Delta_{0}<P )
(iii) Write the hybridization and magnetic behaviour of the complex
( left[N i(C O)_{4}right] )
(At. no. of Ni=28).
12
158 The isomer(s) of ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{C l}_{2}right] ) that
has/have a ( C l-C o-C l ) angle of ( 90^{circ} )
is/are:
A. trans only
B. meridional and trans
c. cis and trans
D. cis only
12
159 Give the name of the complex
compound ( boldsymbol{K}_{3}left[boldsymbol{F} eleft(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right] ) according
to IUPAC system:
A. Potassium Ferric oxalate
B. Potassium trioxalatoiron(II)
c. Potassium trioxalatoferrate(III)
D. Tripotassium trioxalatoferrate(III)
12
160 A six coordinate complex of formula
( boldsymbol{C r} boldsymbol{C l}_{3} cdot boldsymbol{6} boldsymbol{H}_{2} boldsymbol{O} ) has green colour. A ( boldsymbol{0 . 1} boldsymbol{M} )
solution of the complex when treated
with excess of ( A g N O_{3} ) gave ( 28.7 g ) of white precipitate. The formula of the complex would be
( mathbf{A} cdotleft[C rleft(H_{2} Oright)_{6}right] C l_{3} )
B . ( left[mathrm{Cr}left(mathrm{H}_{2} mathrm{O}right)_{5} mathrm{Cl}right] mathrm{Cl}_{2} . mathrm{H}_{2} mathrm{O} )
c. ( left[C rleft(H_{2} Oright)_{4} C lright] C l_{2} .2 H_{2} O )
D. ( left[C rleft(H_{2} Oright)_{3} C l_{3}right] .3 H_{2} O )
12
161 Turnbull’s blue is ( boldsymbol{F e}_{3}left[boldsymbol{F e}(boldsymbol{C N})_{6}right]_{2} )
A. True
B. False
12
162 What is IUPAC name of ( left[boldsymbol{C o}(boldsymbol{e n})_{3}right]^{+3} ) ? 12
163 Ketoenol tautomerism is not observed
in:
This question has multiple correct options
A. phenol
B. glycerol
( mathbf{c} cdot H C N )
D. benzophenone
12
164 ( operatorname{Both}left[N i(mathbf{C O})_{4}right] ) and ( left[N i(C N)_{4}right]^{2-} ) are
diamagnetic. The hybridization of nickel in these complexes, respectively, are:
( mathbf{A} cdot mathbf{s p}^{3}, mathbf{s p}^{3} )
( mathbf{B} cdot mathbf{s p}^{3}, mathrm{dsp}^{2} )
( mathbf{c} cdot mathrm{d} mathbf{s} mathrm{p}^{2}, mathrm{sp}^{3} )
D. ( operatorname{dsp}^{2}, operatorname{dsp}^{2} )
12
165 Explain the bonding in coordination compounds in terms of Werners postulates. 12
166 Which of the following has the highest molar conductivity?
( mathbf{A} cdotleft[operatorname{Co}left(N H_{3}right)_{6}right] C l_{3} )
B . ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{5} mathrm{Cl}right] mathrm{Cl}_{2} )
c. ( left[C oleft(N H_{3}right)_{4} C l_{2}right] C l )
D. ( left[C oleft(N H_{3}right)_{3} C l_{3}right] )
12
167 In the co-ordination compound ( boldsymbol{N} boldsymbol{a}_{4} )
( left.[boldsymbol{F e}) boldsymbol{C N})_{5} boldsymbol{N O S}right] ) oxidation state of ( boldsymbol{F e} )
is:
( A cdot+1 )
( B cdot+2 )
( c cdot+3 )
( D cdot+4 )
12
168 0.28 On the
on the basis of crystal field theory explain why Co(III) forms paramagnetic
octahedral complex with weak field ligands whereas it forms diamagnetic
octahedral complex with strong field ligands.
12
169 ( C u S O_{4} ) when reacts with ( K C N ) forms
( C u C N ) which is insoluble in water. It is
soluble in excess of ( K C N, ) due to
formation of the following complex:
A ( cdot K_{2}left[C u(C N)_{4}right] )
в. ( K_{3}left[C u(C N)_{4}right] )
c. ( C u C N_{2} )
( mathbf{D} cdot operatorname{cu}left[K C u(C N)_{4}right] )
12
170 Select the correct I.U.P.A.C name for
( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{3} boldsymbol{C l}_{3}right] ) complex:
A. Triamminetrichloridochromate ( (I I I) )
B . Triamminetrichloridochromium(III)
C . Trichloridotriamminechromium(III)
D. Trichloridotriamminechromate(III)
12
171 Draw ( 2^{circ} ) alkyl halides with the
empirical formula ( C_{5} H_{11} C l )
12
172 There are four complexes of Ni. Select the complex(es) which will be attracted by a magnetic field.
(1)( left[N i(C N)_{4}right]^{2-} )
(II) ( left[N i C l_{4}right]^{2-} )
( left[N i(C O)_{4}right] quad(I V)left[N ileft(H_{2} Oright)_{6}right]^{2+} )
A. I only
B. IV only
c. ॥, Ill and IV
D. II and IV
12
173 Which of the following shall form an octahedral complex?
This question has multiple correct options
A ( cdot d^{4} ) (low spin)
B. ( d^{8} ) (high spin)
c. ( d^{6} ) (low spin)
D. None of these
12
174 The hybridizations of atomic orbitals of
nitrogen in ( N O_{2}^{+}, N O_{3}^{-} ) and ( N H_{4}^{+} )
respectively are:
A ( cdot s p, s p^{2} ) and ( s p^{3} )
B ( cdot s p^{2}, s p ) and ( s p^{3} )
( mathbf{c} cdot s p, s p^{3} ) and ( s p^{2} )
D. ( s p^{2}, s p^{3} ) and ( s p )
12
175 ( o )
The molecules ( boldsymbol{C} boldsymbol{H}_{3}-stackrel{|}{boldsymbol{C}}-boldsymbol{C} boldsymbol{H}_{2}-stackrel{boldsymbol{V}}{boldsymbol{C}}- )
( boldsymbol{O}-boldsymbol{C}_{2} boldsymbol{H}_{3} )
( begin{array}{cc}boldsymbol{O H} & boldsymbol{o} \ text { and } boldsymbol{C H}_{3}-dot{boldsymbol{C}}=boldsymbol{C H}-stackrel{|}{boldsymbol{C}}-boldsymbol{O}-end{array} )
( C_{2} H_{5} ) are:
A. geometrical isomers
B. tautomers
c. diastereomers
D. metamers
12
176 The hypothetical complex chloro
diaquatriamminecobalt(III) chloride can be represented as:
A ( cdotleft[operatorname{CoCl}left(N H_{3}right)_{3}left(H_{2} Oright)_{2}right] C l_{2} )
в. ( left[operatorname{CoCl}left(N H_{3}right)_{3}left(H_{2} Oright) C l_{3}right] )
c. ( left[operatorname{CoCl}left(N H_{3}right)_{3}left(H_{2} Oright)_{2} C lright. )
D ( cdotleft[operatorname{CoCl}left(N H_{3}right)_{3}left(H_{2} Oright)_{3} C l_{3}right] )
12
177 The formula of the complex hydridotrimethoxidoborate ( III ) ion is:
( A )
( left[B Hleft(O C H_{3}right)_{3}right]^{2} )
в. ( left[B H_{2}left(O C H_{3}right)_{3}right]^{2} )
c. ( left[B Hleft(O C H_{3}right)_{3}right] )
D. ( left[B Hleft(O C H_{3}right)_{3}right] )
12
178 How many metamers are possible for molecular formula ( boldsymbol{C}_{mathbf{4}} boldsymbol{H}_{mathbf{1 1}} boldsymbol{N} ) ?
( A cdot 2 )
B. 3
( c cdot 4 )
D. 5
12
179 Match the correct pairs of isomers with their examples.
A)Ionisation ( left.P tleft(N H_{3}right)_{2} C l_{2}right]left[P tleft(N H_{3}right)_{4}right] )
( left[P t C l_{4}right. )
B) Linkage ( left[C rleft(N H_{3}right)_{6}right]left[C o(C N)_{6}right] & )
( left[C oleft(N H_{3}right)_{6}left[C r(C N)_{6}right]right. )
C)Coordination ( left[operatorname{Co}left(N H_{3}right)_{5}left(N O_{2}right)right] C l_{2} & )
( left[operatorname{Co}left(N H_{3}right)_{5}(O N O)right] C l_{2} )
DPolymerisation ( left[mathrm{Co}left(mathrm{SO}_{4}right)left(mathrm{NH}_{3}right)_{5}right] mathrm{Br} & )
( left[operatorname{Col} operatorname{Br}left(N H_{3}right)_{5}right] S O_{4} )
( A cdot A->a, B->b, C->c, D rightarrow d )
B. ( A->b, B->a, C->d, D rightarrow C )
( c cdot A->d, B->c, C->b, D rightarrow a )
D. ( A->d, B->b, C->c, D rightarrow a )
12
180 Which of the following will given maximum number of isomers?
( mathbf{A} cdotleft[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right]^{+} )
B . ( left[N i(e n)left(N H_{3}right)_{4}right]^{2+} )
( mathbf{c} cdotleft[operatorname{Cr}(S C N)_{2}left(N H_{3}right)_{4}^{+}right] )
D. ( left[N ileft(C_{2} O_{4}right)(e n)_{2}right]^{2} )
12
181 For metal carbonyls which of the
following is correct?
A. Filled d-orbital of metal axially overlaps with vacant anti-bonding orbitals of ( C O )
B. Filled d-orbital of metal laterally overlaps with vacant bonding orbitals of ( C O )
C. Filled d-orbital of metal laterally overlaps with antibonding orbitals of ( C O )
D. Filled d-orbital of metal laterally overlaps with filled molecular orbitals of ( C O )
12
182 The complex used as an anticancer
agent is :
A . ( operatorname{trans}-left[operatorname{Co}left(mathrm{NH}_{3}right)_{3} mathrm{Cl}_{3}right. )
B . ( operatorname{cis}-left[P t C l_{2}left(N H_{3}right)_{2}right] )
c. ( operatorname{cis}-K_{2}left[P t C l_{2} B r_{2}right. )
D. ( N a_{2} C O_{3} )
12
183 In the complexes ( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{3+},left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right]^{3-},left[boldsymbol{F} boldsymbol{e}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)right. )
and ( left[boldsymbol{F} e boldsymbol{C l}_{6}right]^{3-}, ) more stability is shown
by :
( mathbf{A} cdotleft[F e C l_{6}right]^{3-} )
B . ( left[mathrm{Fe}left(mathrm{C}_{2} mathrm{O}_{4}right]^{3}right. )
( mathbf{c} cdotleft[F eleft(H_{2} Oright)_{6}right]^{3+} )
D. ( left[F e(C N)_{6}right]^{3-} )
12
184 ( boldsymbol{K}_{4}left[boldsymbol{F} e(boldsymbol{C} boldsymbol{N})_{6}right] ) is called:
A. potassium hexacyano ferrate (II)
B. potassium hexacyano ferrate (III)
c. potassium ferricyanide
D. prussian blue
12
185 Assertion
Compound shown in image is named as tetrakis (ethylenediamine) ( mu )
( -h y d r o x o-mu ) -imido dicobalt(III) ion.
Reason

In naming polynuclear complexes i.e. containing two or more metal atoms joined by bridging ligands, the word ( mu ) is
added with hyphen before the name of
such ligands.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect

12
186 In which of the following pair of complexes, the experimental magnetic moment and the geometric shapes
same?
A ( cdot Kleft[M n O_{4}right] ) and ( K_{2}left[N i C l_{4}right] )
B. ( _{K_{2}left[N i(C N)_{4}right] text { and } K_{4}left[N i(C N)_{4}right]} )
c. ( _{K_{2}left[N i(C N)_{4}right] text { and } K_{2}left[N ileft(N H_{3}right)_{2} C l_{2}right]} )
D. ( _{K_{3}left[F e(C N)_{6}right] text { and } K_{4}left[F e(C N)_{6}right.} )
12
187 How many moles of ( A g C l ) will be
precipitated when an excess of ( A g N O_{3} )
solution is added to one molar solution
of ( left[boldsymbol{C r} boldsymbol{C l}left(boldsymbol{H}_{2} boldsymbol{O}right)_{5}right] boldsymbol{C l}_{2} ? )
12
188 State whether the given statement is true or false:

Lead poisoning can be removed by use of ( boldsymbol{E} boldsymbol{D} boldsymbol{T} boldsymbol{A} )
A. True
B. False

12
189 The synthetic steroid ethynylestardiol
(1) is a compuond used in the birth control pill.
How many ( s p ) hybridised carbon atoms
are present in compound (1) ?
( A cdot 2 )
B.
( c )
D. 8
E. 10
12
190 The correct name of
( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{C l}_{2}right]left[boldsymbol{P} boldsymbol{t} boldsymbol{C l}_{4}right] ) is:
A. Tetraammine dichloro platinum (IV) tetrachloro platinate(II)
B. Dicholoro tetra mmine platinum (IV) tetrachloro platinate (II)
C . Tetrachloro platinum
(II) tetraammine platinate (IV)
D. Tetrachloro platinum (II) dichloro tetraamine platinate ( (1 V) )
12
191 A hydrocarbon has the molar mass 86 The number of chain isomers possible for the compound is :
A . five
B. six
c. four
D. ten
12
192 The unit of second order reaction rate
constant is
( mathbf{A} cdot L^{-1} m o l s^{-1} )
B. ( L^{-1} )mols( ^{-2} )
c. ( L m o l^{-1} s^{-1} )
D. None
12
193 Question 9. Arrange the following complex ions in increasing order of
crystal field splitting energy (40). [Cr(CI)10, [Cr(CN)61. [Cr(NH3)6B+
Oro
1
12
194 Name the type of isomerism exhibited by the following isomers:
( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]left[boldsymbol{C o}left(boldsymbol{C N}_{6}right)right] ) and
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]left[boldsymbol{C r}(boldsymbol{C N})_{6}right] )
12
195 Which of the following may have
tetragonal?
A ( cdot K_{4}left[operatorname{Fe}(C N)_{6}right] )
B. ice
( mathrm{c} cdot K_{2} mathrm{Cr}_{2} mathrm{O}_{2} )
D. Diamond
12
196 The number of primary, secondary and tertiary amines which possible with the molecular formula ( C_{3} H_{9} N ) are :
( A cdot 1,2,2 )
B. 1, 2,
c. ( 2,1, )
D. 3, 0,
12
197 The ligand called ( pi ) -acid is:
A ( . C O )
в. ( N H_{3} )
( mathrm{c} cdot mathrm{C}_{2} mathrm{O}_{4}^{2-} )
D. ethylene diamine
12
198 Name the individual isomers of each of
the following:
(a) ( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2} boldsymbol{C l}_{2}right] )
(b) ( C r C l_{3} .6 H_{2} 0 )
( (c)left[C oleft(N H_{3}right)_{5} N O_{2}right]left(N O_{3}right)_{2} )
( (mathrm{d}) mathrm{Co}left(mathrm{N} boldsymbol{H}_{3}right)_{5}left(boldsymbol{S} boldsymbol{O}_{4}right)(boldsymbol{C l}) )
( (mathrm{e})left{begin{array}{cc}boldsymbol{N} boldsymbol{H}_{2} & \ (boldsymbol{e n})_{2} boldsymbol{C} boldsymbol{o} & boldsymbol{C o}(boldsymbol{e n})_{2} \ boldsymbol{N} boldsymbol{O}_{2} & boldsymbol{B r}_{4}end{array}right) )
( (f) C o(e n)_{2} N H_{3} B r S O_{4} )
( left.(g)left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)left(boldsymbol{H}_{2}right)right)left(boldsymbol{C}_{5} boldsymbol{H}_{5} boldsymbol{N}right)left(boldsymbol{N} boldsymbol{O}_{2}right)right] boldsymbol{C l} )
12
199 Which of the following complex/ion has highest C-O bond length?
( mathbf{A} cdotleft[V(C O)_{6}right]^{-} )
в. ( F e(C O)_{5} )
c. ( N i(C O)_{4} )
D. ( left[M n(C O)_{6}right]^{+} )
12
200 In the metal carbonyls of the general
formula ( M(C O)_{x} ) where ( M= ) metal
( x=4, ) the metal is bonded to:
A. Carbon and oxygen
B. Carbon
c. oxygen
D. co triple bond
12
201 The IUPAC name for the complex
compound ( boldsymbol{L} boldsymbol{i}left[boldsymbol{A l} boldsymbol{H}_{4}right] ) is:
A. Lithium aluminium hydride
B. Hydride aluminium lithium (III)
C. Lithium tetrahydridoaluminate (III)
D. Llithium tetrahydridoaluminate (I)
12
202 ( ln C u S O_{4} .5 H_{2} O ) how many molecules
of water are indirectly connected to Cu?
( mathbf{A} cdot mathbf{5} )
B. 4
( c cdot 2 )
D.
12
203 ( boldsymbol{C H}_{3}-boldsymbol{N H}-boldsymbol{C}_{2} boldsymbol{H}_{5} ) and ( left(boldsymbol{C H}_{3}right)_{3} boldsymbol{N} )
show which type of isomerism?
A. Position
B. Functional
c. chain
D. None of the above
12
204 What is coordination compound? 12
205 Assertion
Bond angle of ( boldsymbol{P} boldsymbol{F}_{3}>boldsymbol{P} boldsymbol{C l}_{3} ) but bond
angle of ( boldsymbol{P C l}_{3}<boldsymbol{P B r}_{3} )
Reason
The bond angles show an increase on decreasing electronegativity of attached other atom on central atom
but in ( P F_{3} p pi-d pi ) bonding results in
an increase in bond angle.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct
12
206 Consider the following experiment and answer the question:
(A) When ( F e(C N)_{2} ) solution is treated with KCN solution, species formed does
not give tests of ( F e^{2+} ) and ( C N^{-} )
(B) When ( K_{2} S O_{4} ) solution is treated
with ( A l_{2}left(S O_{4}right)_{3} ) solution, species formed gives tests of ( boldsymbol{K}^{+}, boldsymbol{A l}^{3+} ) and ( boldsymbol{S} boldsymbol{O}_{4}^{2-} )
Species formed in experiment (B) is
A. complex
B. Double salt
c. Liquid crystal
D. None of these
12
207 For ( B F_{3} ) molecule, which of the
following is/are true?

This question has multiple correct options
( A cdot B ) -atom is ( s p^{2} ) hybridised.
B. There is a ( p pi-p pi ) back bonding in this molecule.
C. Observed B-F bond length is found to be less than the expected bond length.
D. There is a ( p pi-d pi ) back bonding in this molecule.

12
208 FeCl ( _{3} .4 H_{2} O ) is actually:
( mathbf{A} cdotleft[F eleft(H_{2} Oright)_{4}right] C l_{3} )
( mathbf{B} cdotleft[F eleft(H_{2} Oright)_{3} C lright] C l_{2} cdot H_{2} O )
( mathbf{c} cdotleft[F eleft(H_{2} Oright)_{4} C l_{2}right] C l )
D. ( left[mathrm{Fe}left(mathrm{H}_{2} mathrm{O}right)_{3} mathrm{Cl}_{2}right] mathrm{Cl} . mathrm{H}_{2} mathrm{O} )
12
209 The stabilities of coordination
compounds containing the ions ( boldsymbol{C u}^{2+}, boldsymbol{N i}^{2+}, boldsymbol{C o}^{2+}, boldsymbol{F} boldsymbol{e}^{2+} ) and ( boldsymbol{M} boldsymbol{n}^{2+} )
follow the order:
A ( cdot M n^{2+}>F e^{2+}>C o^{2+}>N i^{2+}+C u^{2+} )
B . ( N i^{2+}>C u^{2+}>F e^{2+}>C o^{2+}+M n^{2+} )
c. ( C u^{2+}>N i^{2+}>C o^{2+}>F e^{2+}+M n^{2+} )
D. ( F e^{2+}>M n^{2+}>N i^{2+}>C o^{2+}+C u^{2} )
12
210 The magnitude of crystal field stabilization energy in octahedral field
depends on
I the nature of the ligand
Il : the charge on the metal ion
III : whether the metal is in the first,
second or third row of the transition
elements.
A. ( I, ) II, III all are correct
B. I, II are correct
c. ॥, Ill are correct
D. III only correct
12
211 Which of them is CORRECT statement
for ( Nleft(C H_{2} C H_{2} N H_{2}right)_{3} ) and
( Nleft(C H_{2} C O Oright)_{3}^{3-} ? )
A. Both are tetradentate
B. Both has four donor site but act as tridentate
C. ( Nleft(C H_{2} C H_{2} N H_{2}right)_{3} ) is tetradentate but ( Nleft(C H_{2} C O Oright)_{3}^{3} ) is tridentate
D. ( Nleft(C H_{2} C H_{2} N H_{2}right)_{3} ) is tridentate but ( Nleft(C H_{2} C O Oright)_{3}^{3-} ) is tetradentate
12
212 CO is practically non-polar since:
A. the ( sigma ) -electron drift from ( C ) to ( O ) is almost nullified by the ( pi ) -electron drift from ( O ) to ( C )
B. the ( sigma ) -electron drift from ( O ) to ( C ) is almost nullified by the ( pi ) -electron drift from ( C ) to ( O )
C. the bond moment is low
D. there is a triple bond between ( C ) and ( O )
12
213 Assertion
Hybridization of ( left[boldsymbol{A u C l}_{4}right]^{Theta} ) is ( boldsymbol{s p}^{3} )
Reason
Hybridization of Au in above complex
compound does not depend upon nature
of ligand.
A. Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.
B. Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1
C. Statement-1 is true, statement-2 is false.
D. Statement-1 is false, statement-2 is true.
12
214 The most stable conformation of
ethylene glycol and but-2-ene are respectively.
A. anti and anti
B. gauche and anti
c. gauche and gaushe
D. partially eclipsed and anti
12
215 2. 50 Why are different colours observed in octahedral and tetrahedral
complexes for the same metal and same ligands?
mal and tetrahedral field. CFSE in
12
216 Q. 18 An aqueous pink solution of cobalt(II) chlona
pink solution of cobalt(II) chloride changes to deep blue on
addition of excess of HCl. This is because …
(a) [Co(H2O).]2+ is transformed into [CoC1.14
(b) [Co(H20)612+ is transformed into [CoC1,1%
(c) tetrahedral complexes have smaller crystal field splitting than octahedral
complexes
(d) tetrahedral complexes have larger crystal field splitting than octahedral complex
A
(5
)
12
217 In Alum: ( K_{2} S O_{4} . A l_{2}left(S o_{4}right)_{3} .24 H_{2} O )
Which metal can replace ( boldsymbol{A l} )
A ( . C r )
в. ( M n )
c. ( I n )
D. ( S c )
12
218 Which of the following biomolecules contain non-transition metal ion?
A. Vitamin ( B_{12} )
B. Chlorophyll
c. Haemoglobin
D. Insulin
12
219 Write the IUPAC name for ( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}right. )
( mathrm{CO}] C l_{3} )
A. Carbonatopentaamminechromium (III) chloride
B. Pentaamminecarbonatochromium (III) chloride
C. Pentaaminecarbonatochromium (III) chloride
D. Pentaammoniacarbonatochromium (III) chloride
12
220 Question 16. Why are different colours observed in octahedral and
tetrahedral complexes for the same metal and same ligands?
12
221 List and explain the factors which affect the stability of coordination complexes. 12
222 Which of the following statements is
not correct?
( mathbf{A} cdot T ileft(N 0_{3}right)_{4} ) is a colourless compound
B. ( left.left[mathrm{Cr}left(mathrm{NH}_{3}right)_{6}right)right] mathrm{Cl}_{3} ) is a coloured compound
( mathbf{C} cdot K_{3}left[V F_{6}right] ) is a colourless compound
D ( cdotleft[C uleft(N C C H_{3}right)_{4}right] B F_{4} ) is a colourless compound
12
223 Which complex among the following gives a white precipitate on treatment with an aqueous solution of barium
chloride?
( mathbf{A} cdotleft[P tleft(N H_{3}right)_{4} B r_{2}right] C l_{2} )
B ( cdotleft[C oleft(N H_{3}right)_{5} S O_{4}right] N O_{2} )
c. ( left[C oleft(N H_{3}right)_{5} N O_{2}right] S O_{4} )
D. ( left[P tleft(N H_{3}right)_{4} C l_{2}right] B r_{2} )
12
224 The compound which is not isomeric
with diethyl ether is:
A. n-propylmethylether
B. butan-1-ol
c. 2- methylpropan-2-ol
D. butanone
12
225 Which of the following is a correct Irving-
Williams order (tendency of complex
formation)?
( mathbf{A} cdot M n^{2+}<F e^{2+}<C o^{2+}<N i^{2+} )
B. ( N i^{2+}<C o^{2+}<F e^{2+}<M n^{2+} )
( mathbf{c} cdot F e^{2+}<M n^{2+}<N i^{2+}<C o^{2+} )
D ( cdot C o^{2+}<M n^{2+}<F e^{2+}<N i^{2+} )
12
226 Which is not true about metal
carbonyls?
A. Here CO acts as a Lewis base as well as Lewis acid
B. Here metal acts as Lewis base as well as Lewis acid
C . Here ( d pi-p pi ) back bonding takes place
D. Here ( p pi-p pi ) back bonding takes place
12
227 Which of the following complex has five unpaired electrons?
( mathbf{A} cdotleft[M nleft(H_{2} Oright)_{6}right]^{2+} )
B . ( left[M n(C N)_{6}right]^{3} )
( mathbf{c} cdotleft[C r C l_{3}left(H_{2} O_{3}right]right. )
D. ( left[A gleft(N H_{3}right)_{2}right] )
12
228 After black and white photographic film has been developed, unreacted silver bromide is removed by reaction with
sodium thiosulfate.
( A g B r+2 N a_{2} S_{2} O_{3} rightarrow 4 N a^{+}+ )
( boldsymbol{B} boldsymbol{r}^{-}+left[boldsymbol{A} boldsymbol{g}left(boldsymbol{S}_{2} boldsymbol{O}_{3}right)_{2}right]^{3-} )
What is the function of the thiosulfate
ion?
A. To make the silver ions soluble
B. To oxidise the silver ions
c. To reduce the bromine
D. To reduce the silver ions
12
229 Question 4. Magnetic moment of MnCl.]2- is 5.92 BM. Explain giving
reason.
Salute
12
230 The total number of isomers for ( C_{4} H_{8} ) is
A. 5
B. 6
c. 7
D. 8
12
231 In spectrochemical series, chlorine is
above water i.e., ( boldsymbol{C l}>boldsymbol{H}_{2} boldsymbol{O} . ) This is due
to:
A. Good ( pi- ) acceptor properties of ( C l )
B. Strong ( sigma- ) and good ( pi- ) acceptor properties of ( C l )
c. Good ( pi ) – donor properties of ( C l )
D. Larger size of ( C l ) than ( H_{2} O )
E. None of the option
12
232 The correct IUPAC name of the
coordination compound
( boldsymbol{K}_{mathbf{3}}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{mathbf{5}} boldsymbol{N} boldsymbol{O}right] ) is ( boldsymbol{?} )
A. potassium pentacyanonitrosylferrate (II)
B. potassium pentacyanonitro-N-ferrate(III)
C . potassium nitritopentacyanoferrate(IV)
D. potassium nitritepentacyanoiron(II)
12
233 What is the formula of ammonium
aquapentafluoronickelate(IV)?
( mathbf{A} cdotleft[operatorname{Ni}left(N H_{3}right)left(H_{2} Oright) F_{5}right]^{+1} )
B . ( left[N ileft(N H_{3}right)left(H_{2} Oright) F_{5}right] )
( mathbf{c} cdotleft(N H_{4}right)_{2}left[N ileft(H_{2} Oright) F_{5}right] )
D. ( N H_{4}left[N ileft(H_{2} Oright) F_{5}right] )
12
234 Of the five isomers of hexanes, the
isomer which can give two
monochlorinated compounds is:
A. 2-methyl pentane
B. 2,2-dimethylbutane
c. 2,3 -dimethylbutane
D. n-hexane
12
235 How many of the following will show tautomerism?
(iii) Me, ( c_{text {Ch }}^{text {? }} )
(vil)
12
236 Turnbull’s blue is:
A. ferricyanide
B. ferrous ferrocyanide
C . ferrous cyanide
D. ferrous ferricyanide
12
237 Coordination compounds have great
importance in biological systems. In
this context which of the following
statements is incorrect?
A. Carboxypeptidase-A is an enzyme and contains zinc.
B. Haemoglobin is the red pigment of blood and contains iron
C. Cyanocobalamin is ( B^{12} ) and contains cobalt.
D. Chlorophylls are green pigments in plants and contain calcium.
12
238 IUPAC name of ( left[boldsymbol{F e}left(boldsymbol{O}_{2}right)(boldsymbol{C} boldsymbol{N})_{4} boldsymbol{C l}right]^{4-} ) is :
A. chlorotetracyano dioxoferrate (II) ion
B. Chlorotetracyano peroxoferrate (II) ion
c. chlorotetracyano superoxoferrate (II) ion
D. Tetracyanochloro superoxoferrate (II) ion
12
239 The chloro-bis (ethylenediamine)
nitrocobalt(III) ion is –
( mathbf{A} cdotleft[operatorname{Co}left(N O_{2}right)_{2}(e n)_{2} C l_{2}right]^{+} )
B. ( left[operatorname{CoCl}left(N O_{2}right)_{2}(e n)_{2}right]^{+} )
c. ( left[operatorname{Co}left(N O_{2}right) C l(e n)_{2}right] )
D. ( left.[operatorname{Co(en}) C l_{2}left(N O_{2}right)_{2}right] )
12
240 A coordination compound X gives pale
yellow colour with ( A g N O_{3} ) solution while its isomer Y gives white
precipitate with ( B a C l_{2} . ) Two
compounds are isomers of ( operatorname{CoBr} boldsymbol{S O}_{4} )
( mathbf{5} N boldsymbol{H}_{3} . ) What could be the possible
formula of ( X ) and ( Y ? )
A ( cdot X=left[operatorname{Co}left(N H_{3}right)_{5} S O_{4}right] B r, Y=left[operatorname{Co}left(N H_{3}right)_{5} B rright] S O_{4} )
B . ( X=left[C oleft(N H_{3}right)_{5} B rright] S O_{4}, Y=left[C oleft(N H_{3}right)_{5} S O_{4}right] B r )
c. ( X=left[operatorname{Co}left(N H_{3}right)_{5} B rleft(S O_{4}right)right], Y=left[operatorname{CoBr}left(S O_{4}right)left(N H_{3}right)_{5}right. )
D. ( X=left[operatorname{Co}(B r)_{5} N H_{3}right] S O_{4}, Y=left[operatorname{CoBr}left(S O_{4}right)right] N H_{3} )
12
241 Which one of the following acts as a
Lewis base in complexes?
( A cdot C O_{2} )
B. BF ( _{3} )
c. ( mathrm{NH}_{3} )
D. BCI
12
242 The oxidation state of cobalt in the
following molecule is:
( A cdot 3 )
B.
( c cdot 2 )
( D )
12
243 Match column-I (chemical composition of precipitates) with column-II (colour of the precipitate) and select the correct answer using the codes given below in the columns:
( (a) C oleft[H g(S C N)_{4}right] )
(p) black
(b) ( boldsymbol{F e}_{3}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right]_{2} )
(q) rosy red
( (c) N i(d m g)_{2} )
(r) prussian
blue
(d) PbS
(s) deep blue
( A cdot a-s, b-p, c-q, d-r )
B. a-s, b-r, c-q, d-p
c. ( a-s, b-p, c-r, d-q )
D. a-p , b-r, c-q, d-s
E. a-p, b-q,c-r, d-s
12
244 ( boldsymbol{T} boldsymbol{i}^{3+}(boldsymbol{a} boldsymbol{q}) ) is purple while ( boldsymbol{T} boldsymbol{i}^{4+}(boldsymbol{a} boldsymbol{q}) ) is
colourless because:
Tetrahedral field
A. there is no crystal field effect in ( T i^{4-} )
B. there energy difference between ( t_{2 g} ) and ( e_{g} ) of Tir{ ( 4-3 $ $ ) is quite high and does not fall in the visible region
( mathrm{C} cdot T i^{4-} ) has ( d^{0} ) configuration.
D. ( T i^{4-} ) is very stabilization energy for ( left[C o F_{6}right]^{3-} ) in terms of parameter Dq is – ( (Delta=100 D q) )
12
245 Identify the correct statement(s).
( mathbf{A} cdot C H_{3}-C H_{2}-C H_{2}-C O-C H_{3}, C H_{3}-C H_{2}- )
( C O-C H_{2}-C H_{3} ) are position isomers only
B. ( C H_{3}-C H_{2}-C H_{2}-C O-C H_{3}, C H_{3}-C H_{2}- )
( C O-C H_{2}-C H_{3} ) are position isomers as well as
metamers.
( mathbf{c} cdot C H_{3}-C O-C Hleft(C H_{3}right)-C H_{3}, C H_{3} C O-C H_{2}- )
( C H_{2}-C H_{3} ) are tautomers to each other
D. ( C H_{2}=C(O H)-C H_{2}-C H_{2}-C H_{3}, C H_{3}- )
( C(O H)=C H-C H_{2}-C H_{3} ) are tautomers as well as
position isomers
12
246 How many hydrate isomers of
( left[boldsymbol{C u}left(boldsymbol{H}_{2} boldsymbol{O}right)_{4}right] boldsymbol{C l}_{2} ) are possible?
12
247 Define the cis-trans isomerism? Show
the cis-trans isomers of
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{C l}_{2}right]^{+} )
12
248 dentify the correct statements for the behaviour of ethane-1, 2-
0.22 Identifi
diamine as a ligand.
(a) It is a neutral ligand
(c) It is a chelating ligand 150
(b) It is a didentate ligand
(d) It is a unidentate ligand
a didentate ligando
12
249 Ored
Q. 6 The stabilisation of coordination compounds due to chelation is called the
chelate effect. Which of the following is the most stable complex species?
(a) [Fe(CO):] (b) [Fe(CN).13- (c) [Fe(C,02)1- (d) [Fe(H2O)61°*
A
C
olatie
12
250 Point out the correct statement
amongst the following.
( mathbf{A} )
( left[C uleft(C N_{4}right)right]^{3-} ) has tetrahedral geometry and ( d s p^{2} )
hybridization
B. ( left[N ileft(C N_{6}right)right]^{4-} ) is octahedral and ( mathrm{Ni} ) had ( d^{2} s p^{3} )
hybridization
( ^{mathbf{C}} cdotleft[Z n B r_{4}right]^{2-} ) is tetrahedral and diamagnetic
D. ( left[C rleft(N H_{3}right)_{6}right]^{3+} ) has octahedral geometry and ( s p^{3} d^{2} )
hybridization
12
251 The IUPAC name of the red coloured
( operatorname{complex}left[boldsymbol{F e}left(boldsymbol{C}_{4} boldsymbol{H}_{7} boldsymbol{O}_{2} boldsymbol{N}_{2}right)_{2}right] ) obtained
from the reaction of ( F e^{2+} ) and dimethyl
glyoxine
A. bis(dimethyl flyoxime) ferrate(II)
B. bis (dimethyl glyoximato) iron(II)
c. bis (2, 3-butanediol dioximato) iron(II)
D. bis (2, 3-butanedione dioximato) iron(II)
12
252 Coordination compounds have great
importance in biological systems. In
this context which of the
following statement(s) is/are incorrect?
A. Chlorophyll is a green pigment in plants and contains calcium
B. Haemoglobin is the red pigment of blood and contains iron
C. Cyanocobalamin is ( B_{12} ) and contains cobalt
D. Carboxypeptidase A is an enzyme and contains zinc
12
253 Total number of possible alkyl chlorides
with the formula ( C_{4} H_{9} C l ) is/are:
12
254 10.1 Which of the following complexes formed by Cu2+ ions is most stable:
(a) Cul+ + 4NH3 [Cu(NH),12+, log K= 11.6
(b) Cu2+ + 4CN [Cu(CN),12, log K= 27.3
(c) Cu2+ + 2en [Cu(en)]2+, log K = 15.4
(d) Cu2+ + 4H20 [Cu(H,O),12+, log K = 8.9
12
255 By which of the following, poisoning of lead in the body can be removed?
A ( . P t )
c. ( O x^{2-} )
D. ( P n )
12
256 If true enter 1 , else enter 0 .
The hybridized orbitals always form ( sigma )
bonds.
( A )
12
257 Which one of the following complexes is not expected to exhibit isomerism?
( mathbf{A} cdotleft[N ileft(N H_{3}right)_{4}left(H_{2} Oright)_{2}right]^{2+} )
B ( cdotleft[P tleft(N H_{3}right)_{2} C l_{2}right] )
( mathbf{c} cdotleft[N ileft(N H_{3}right)_{2} C l_{2}right] )
D. ( left[N i(e n)_{3}right]^{2+} )
12
258 When ( left[N ileft(H_{2} Oright)_{6}right]^{3+} ) is mixed with ethylenediamine in excess,
ethylenediamine(en) displaces ( H_{2} O ) to
form a chelate.
If true enter 1 , else enter 0 .
12
259 Assertion
Both cis-1,3-dimethyl cyclobutane and trans-1,3-dimethyl cyclobutane are optically inactive.
Reason
cis-1,3-Dimethyl cyclobutane has the plane of symmetry, where as trans form has the centre of symmetry.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
12
260 The IUPAC name of
( left[boldsymbol{P t C l}left(boldsymbol{N H}_{2} boldsymbol{C H}_{3}right)left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}right] boldsymbol{C l} ) is :
A. diamminechloro(methylamine)platinum(II)chloride
B. (dimethylamine)chlorodiamminoplatinum(II)chloride
C. bis(ammine)chloro(methylamine)platinate(II)chloride
D. diaminechloro(mehylamine)platinum(II)chloride
12
261 Match List-I with List-II. 12
262 Which of the following show stable or major form of tautomerism?
This question has multiple correct options
( A )
в.
( c )
D.
12
263 Which is Prussian blue?
A ( cdot K F e^{I I I}left[F e^{I I}(C N)_{6}right] )
B. ( K F e^{I I I}left[F e^{I I I}(C N)_{6}right] )
C. ( K_{2}left[F e^{I I}(C N)_{6}right] )
D. ( K_{3}left[F e(C N)_{6}right] )
12
264 ( left[N i C l_{4}right]^{2-} ) is diamagnetic in nature
A. True
B. False
12
265 The IUPAC name of the compound with
formula ( mathrm{C}_{n} mathrm{H}_{2 n+2} ) having the lowest
possible molecular mass and capable of showing enantiomerism, is :
A. 3-Methyl hexane
B. 2,3-Dimethyl pentane
c. Methane
D. Both (a) and (b)
12
266 Amongst the following, the most stable
complex is:
( mathbf{A} cdotleft[F eleft(H_{2} Oright)_{6}right]^{3} )
B . ( left[F eleft(N H_{3}right)_{6}right]^{3+} )
c. ( left[F eleft(C_{2} O_{4}right)_{3}right]^{3} )
D. ( left[F e C l_{6}right]^{3} )
12
267 Out of the complexes ( left.left[boldsymbol{F} boldsymbol{e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right)right]^{3+} )
( left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right]^{boldsymbol{3}-},left[boldsymbol{F} boldsymbol{e}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right]^{3-} ) and
( left[boldsymbol{F} boldsymbol{e}(boldsymbol{C l})_{6}right]^{3-}, ) the most stable one is:
( left.left.^{mathbf{A}} cdot_{[F e}left(H_{2} Oright)_{6}right)right]^{3+} )
B. ( left[F e(C N)_{6}right]^{3-} )
( c )
( left[mathrm{Fe}left(mathrm{C}_{2} mathrm{O}_{4}right)_{3}right]^{3-} )
( D )
( left[F e(C l)_{6}right]^{3-} )
12
268 Which of the following is correct IUPAC
name of any complex compound?
A. Tris(acetylacetonato)iron(III)chloride
B. Hexachloroplatinum(IV)tetraammine dicyano platinate(IV)
C. Ammine bromochloro methylamine platinum(II)
D. cis-dichloro (ethylenediamine) platinum (II)
12
269 Consider following complexes:
I: ( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{2+} )
( |:left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right]^{4-} )
( | I:left[N i(C O)_{4}right] )
( mid V:left[N ileft(H_{2} Oright)_{4}right]^{2+} )
( mathbf{V}:left[boldsymbol{N} boldsymbol{i}(boldsymbol{C} boldsymbol{N})_{4}right]^{2-} )
Out of this, select the complexes with
octahedral geometry :
This question has multiple correct options
( mathbf{A} cdotleft[F eleft(H_{2} Oright)_{6}right]^{2+} )
B . ( left[F e(C N)_{6}right]^{4} )
( mathbf{c} cdotleft[N ileft(H_{2} Oright)_{4}right]^{2+} )
D. ( left[N i(C N)_{4}right]^{2-} )
12
270 The molecular interactions responsible for hydrogen bonding in HF:
A. ion induced dipole
B. dipole dipole
c. dipole induced dipole
D. none
12
271 The IUPAC name of A and B are,
repectively:
A. Potassium tetracyanonickelate (II), potassium tetrachloronickelate (II)
B. Tetracyanopotassiumnickelate (II) teterachlorpotassiumnickelate (II)
C. Tetracyanornickel (II), tetrachloronickel (II)
D. Potassium tetracyanonickel (II), potassium tetrachloronickel (II)
12
272 answer the question. A student in 1895 prepared three
coordination compounds containing chromium with the following properties:
( C l^{-} ) ions ( begin{array}{ll}text { Formula } & text { Colour } \ & text { in } \ & text { solution } \ & text { per } \ & text { formula } \ & text { units }end{array} )
(A) ( mathrm{CrCl}_{3} cdot 6 mathrm{H}_{2} mathrm{O} quad ) violet 3
(B) ( ^{C r} C_{3,6 H_{2} O} / begin{array}{l}operatorname{ligh}_{operatorname{gre} n} \ 2end{array} )
( (C) )
( mathrm{CrCl}_{3} .6 mathrm{H}_{2} mathrm{O} quad begin{array}{l}text { Dark } \ text { green }end{array} )
IUPAC name of the complex ( A ) is
A. Hexaaquatrichlorochromium(III)
B. Hexaaquachromium(III) chloride.
C. Pentaaquachlorochromium(III) chloride.
D. Tetraaquadichlorochromium(III) chloride
12
273 Which of the following is a complex salt?
A. Fischer salt
B. Mohrs salt
c. Glaubers salt
D. Microcosmic salt
12
274 ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{S O}_{4}right] boldsymbol{B r} ) and
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{B r}right] boldsymbol{S} boldsymbol{O}_{4} ) are a pair of
isomers.
A . ionisation
B. ligand
c. coordination
D. hydrate
12
275 The geometries of the ammonia
complexes of ( N i^{2+}, P t^{2+} ) and ( Z n^{2+} )
respectively, are:
A. octahedral, square planar and tetrahedral
B. square planar, octahedral and tetrahedral,
C . tetrahedral, square planar and octahedral
D. octahedral, tetrahedral and square planar
12
276 Write the formulas for the following coordination compounds:
Tetraamminediaquacobalt
(III) chloride
12
277 ( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]left[boldsymbol{C r}(boldsymbol{S C} boldsymbol{N})_{6}right] ) and
( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}(boldsymbol{S C N})_{4}right]left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}(boldsymbol{S C N}right. )
are the examples of what type of isomerism?
A. lonisation isomerism
B. Linkage isomerism
c. coordination isomerism
D. Solvate isomerism
12
278 ( E D T A^{-4} ) is a ( X ) dentate ligand. ( X ) is :
A. mono
в. hexa
c. tetra
D. tertary
12
279 Metal carbonyls can have formula
( left.M(C O)_{x}right), ) where ( x= ) number of ( C O ) units coordinated to metal ( M )

What is the formula of the carbonyl of ( F e(26) ) if ( E A N ) of ( F e ) in metal carbonyl
is ( 36 ? )
( A cdot 2 )
B. 3
( c cdot 4 )
D. 5

12
280 Which of the following statement(s) is/are correct?
S1: Dialysis is the method of purification of colloidal solution from electrolytic & non-electrolytic impurities. S2: Banana bonding occurs in
( boldsymbol{A l}_{2}left(boldsymbol{C H}_{3}right)_{6}, boldsymbol{G a}_{2}left(boldsymbol{C H}_{3}right)_{6}, boldsymbol{B e} boldsymbol{H}_{2}(boldsymbol{S}) )
S3: There are two types of ( C r-O ) bond
length in ( boldsymbol{C r} boldsymbol{O}_{4}^{2-} )
S4: Total number of stereoisomers in
( boldsymbol{K}_{4}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right] ) is 0
A. ( F T F T )
в. ( T F T F )
c. ( F F T T )
D. ( T T F F )
12
281 Ligand with two or more points of attachment to single metal atoms are called:
A. Monodentate ligand
B. Chelating ligand
c. Ambidentate ligand
D. None of these
12
282 Which of the following complexes will have a tetrahedral shape?
B . ( left[P d(C N)_{4}right]^{2} )
c. ( left[N i(C N)_{4}right]^{2} )
D. ( left[N i C l_{4}right]^{2} )
12
283 Number of structural isomers which
can be obtained theoretically on monochlorination of 2-methylbutane is:
A . 1
B . 2
( c .3 )
D. 4
12
284 Which of the following rules is not correct regarding IUPAC nomenclature of complex ions?
A. Cation is named first and then anion
B. In coordination sphere, the ligands are named alphabetically.
c. Positively charged ligands have suffix ‘ate’
D. More than one ligand of a particular type are indicated by using di, trii, tetra, etc.
12
285 Select the correct IUPAC name for
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{2+} )
A. Hexammoniacobaltate(II) ion
B. Hexaamminecobaltate(II) ion
c. Hexammoniacobalt(II) ion
D. Hexaamminecobalt(II) ion
12
286 ambidentate ligands coordination compounds show
iplexes of the type [Pd(C6H5)2(SCN)2] and
0.9 Due to the presence of ambidentate ligands coordin
isomerism. Palladium complexes of the type [PacC65
[Pd(C6H5)2 (NCS)2] are
(a) linkage isomers
(b) coordination isomers
(c) ionisation isomers
(d) geometrical isomers
er known as ambident ligands
The licendol biobb
12
287 Write the formula for each of the
following complexes:
(a) tetraamminecopper (II) sulphate
(b) potassium tetracyanonickelate (0)
(c) bis (cyclopentadiehyl)iron(II)
(d) tetrathicyanato -N-zinc (II)
(e) diamminebis (ethylenediamine) cobalt (III) chloride
( (f) )
tetraammineddithiocyanatochromium
( (| I) )
(g) potassium tetraoxomanganate (VII)
(h) potassium terioxalatoalumminate
( (| I) )
(i) tetrapyridineplatinum (II) tetrachloroplatinate (II)
12
288 ( operatorname{ls}left(K_{2} S O_{4} cdot C r_{2}(S O)_{4}right)_{3} cdot 24 H_{2} O )
correct formula of chrome alum?
If yes enter 1 , else enter 0
12
289 HCOOH( frac{operatorname{conc} boldsymbol{H}_{2} boldsymbol{S O}_{4}}{mathbf{3 7 3 K}} boldsymbol{A}+boldsymbol{B}, ) then
identify the incorrect statement
regarding ( B ? )
A. It act as a ( pi ) -acceptor ligand in coordinates compounds
B. It acts as a reducing agent
( mathrm{C} ). It is almost water insoluble gas
D. It is failed to reduce an aqueous ( P d C I_{2} ) solution to metallic ( P d )
12
290 Primary and secondary valency of
( boldsymbol{P t} ) in ( left[boldsymbol{P t}(boldsymbol{e n})_{2} boldsymbol{C l}_{2}right] boldsymbol{C l}_{2} ) are:
( A cdot 4,4 )
B. 4,6
( c cdot 6,6 )
D. 4,2
12
291 The number of structural and
configurational isomers of a bromo
compound ( C_{5} H_{9} B r, ) formed by the addition of HBr to 2-pentyne respectively are :
A. 1 and 2
B. 2 and 4
c. 4 and 2
D. 2 and 1
12
292 How many chiral carbons are present in gulcose molecule ( mathrm{CHO}(mathrm{CHOH})_{4} mathrm{CH}_{2} mathrm{OH} ? )
( A cdot 4 )
B. 3
( c cdot 2 )
D.
12
293 Number of ( C l^{-} ) ions satisifying both primary and secondary valency are in
( boldsymbol{C o C l}_{3} mathbf{5} boldsymbol{N} boldsymbol{H}_{3} )
12
294 0.43 Assertion (A) Linkage isomerism anses in coordination compounds
containing ambidentate ligand.
Reason (R) Ambidentate ligand has two different donor atoms.
12
295 Which of the compound is both paramagnetic and coloured?
A. ( C u F_{2} )
в. ( K_{3}left[C u(C N)_{4}right] )
c. ( K_{2}left[T i C l_{6}right] )
D. ( K_{2} C r O_{4} )
12
296 What is the nomenclature of
( left[boldsymbol{C o C l}_{2}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]^{+} ? )
12
297 (i) Write down the IUPAC name of the following complex:
[
left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}left(boldsymbol{N} boldsymbol{O}_{2}right)right]left(boldsymbol{N} boldsymbol{O}_{3}right)_{2}
]
(ii) Write the formula for the following
complex:

Potassium tetracyanidonickelate(II)

12
298 The IUPAC name of the Wilkinson’s
catalyst
( left[boldsymbol{R h C l}left(boldsymbol{P P h}_{3}right)_{3}right] ) is:
A. Chlorotris (triphenylphosphine) rhodium (I)
B. Chlorotris (triphenylphosphine) rhodium (IV)
C. Chlorotris (triphenylphosphine) rhodium (0)
D. Chlorotris (triphenylphosphine) rhodium (VI)
12
299 Which of the following is not optically
active?
( mathbf{A} cdotleft[operatorname{Co}(e n)_{3}right]^{3+} )
B . ( left[C r(o x)_{3}right]^{3} )
c. ( operatorname{cis}-left[operatorname{CoCl}_{2}(e n)_{2}right] )
D. ( operatorname{trans}-left[operatorname{CoCl}_{2}(e n)_{2}right]^{+} )
12
300 Transition elements form complexes
readily because :
A. Small size of cation
B. Large ionic Charge
c. vacant d orbitals
D. All the above
12
301 Which one of the following statement is
incorrect?
A ( cdot ) Greater the formation constant ( left(K_{f}right) ) of a complex ion,
greater is its stability.
B. Greater the positive charge on the central metal ion, greater is the stability of the complex.
C. Greater is the basic character of the ligand, lesser is the stability of the complex.
D. Chelate complexes have high stability constants.
12
302 Question 37. What can be inferred from the magnetic moment values of
the following complex species?
5.3
Example
Magnetic
moment (BM)
K, [Mn(CN)61
2.2
[Fe(H20)612+
K,[MnCl,]
5.9
Magnetic moment is related to the number of unpaired electrons as
u= n(n+2) BM (When, n=number of unpaired electrons)
So find the number of unpaired electrons and thus, the oxidation state
(having that number of unpaired electrons) of the metal atom present in
the complex
Now give the hybridisation and structure of complex.
12
303 Which of the following ligand is called chelating ligand?
A. Ethane -1,2 diamine
B. Oxalate
c. Glycinate
D. All are chelating ligands
12
304 1. True OR
2. False:
( mathrm{m} ) – chlorobromobenzene is an isomer of
( mathrm{m} ) – bromochlorobenzene.
12
305 Assertion
Statement -1: Coordination isomerism
occurs when both cation and anion are
complex.
Reason
Statement -2: The complexes with coordination number 6 form octahedral
complexes involving either ( s p^{3} d^{2} ) or
( d^{2} s p^{3} ) hybridization.
A. Statement – 1 is true, Statement – 2 is true and Statement – 2 is correct explanation for Statement –
1.
B. Statement – 1 is true, Statement – 2 is true and Statement – 2 is NOT the correct explanation for Statement – 1
c. Statement -1 is true, Statement -2 is false
D. Statement – 1 is false, Statement – 2 is true
12
306 Write IUPAC name of the following
complex compound. ( K_{3}left[F eleft(C_{2} O_{4}right)_{3}right. )
12
307 Assertion
Silver bromide is used in photography.
Reason

Silver bromide is used in photography
because silver bromide is
photosensitive. It decomposes and is converted into metallic silver grains
when light is incident on it.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect

12
308 Metamerism is shown by:
This question has multiple correct options
A. diethylether
B. diethylketone
C . diethylamine
D. dimethylether
12
309 Which element is not present in chlorophyll?
A. carbon
B. Calcium
c. Magnesium
D. Hydrogen
12
310 Ortho-nitrophenol is less soluble in
water than para and meta-nitrophenols
because:
A. o- nitrophenol is more volatile in steam than those of ( mathrm{m}- ) and ( mathrm{p}- ) isomers.
B. o- nitrophenol shows intramolecular ( H ) -bonding.
C. o-nitrophenol shows intermolecular ( H ) -bonding.
D. none of these
12
311 Complexes formed in the following
methods are:
(1) Mond’s process for purification of nicke
(II) Removal of unreacted AgBr from photographic plate
(III) Removal of lead poisoning from the
body
A ( cdot ) ।. ( N i(C O)_{4}, ) II. ( left[A g(C N)_{2}right]^{-}, ) ॥I. ( [P b(E D T A)]^{2} )
B . I. ( N i(C O)_{4}, ) II. ( left[A gleft(S_{2} O_{3}right)_{2}right]^{3-}, ) ॥I. ( [P b(E D T A)]^{2} )
c. ।. ( N i(C O)_{6}, ) ॥. ( left[A gleft(S_{2} O_{3}right)_{2}right]^{3-}, ) ॥I. ( [P b(E D T A)]^{4} )
D. I. ( N i(C O)_{6}, ) II. ( left[A gleft(S_{2} O_{3}right)right]^{-}, ) III. ( [P b(E D T A)]^{2} )
12
312 IONALNO
Q. 42 Assertion (A) [Cr(H,0.)]Cl, and [Fe(H20)6]Cl, are reducing in natura
Reason (R) Unpaired electrons are present in their d-orbitals.
mann is not correct explanation of a
12
313 Primary and secondary valency of ( P t ) in
( left[boldsymbol{P t}(boldsymbol{e n})_{2} boldsymbol{C l}_{2}right] boldsymbol{C l}_{2} ) are:
( A cdot 2,4 )
в. 2,
( c cdot 6,6 )
D. 4,2
12
314 The compound that inhibits the growth
of tumors is:
A ( cdot operatorname{cis}-left[P d(C l)_{2}left(N H_{3}right)_{2}right. )
B . ( operatorname{cis}-left[P t(C l)_{2}left(N H_{3}right)_{2}right] )
c. ( operatorname{trans}-left[P t(C l)_{2}left(N H_{3}right)_{2}right] )
D. ( operatorname{trans}-left[P d(C l)_{2}left(N H_{3}right)_{2}right] )
12
315 Which of the following will have two stereoisomeric forms?
(I) ( left[boldsymbol{C r}left(boldsymbol{N O}_{3}right)_{3}left(boldsymbol{N} boldsymbol{H}_{3}right)_{3}right] )
(II) ( boldsymbol{K}_{mathbf{3}}left[boldsymbol{F} boldsymbol{e}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right] )
(III) ( left[boldsymbol{C o C l}_{2}(boldsymbol{e n})_{2}right]^{+} )
( (operatorname{lv})left[operatorname{CoBr} C l(O x)_{2}right]^{3-} )
A . I only
B. I and II
c. Ill and IV
D. All of these
12
316 Q. 11 A chelating agent has two or more than two donor atoms to bind to
single metal ion. Which of the following is not a chelating agent?
(a) Thiosulphato
(b) Oxalato
(c) Glycinato
(d) Ethane-1, 2-diamine
12
317 What is an isomer? Write the isomer of
butane with structural formula.
12
318 The coordination number and oxidation
number of the central metal ion in the
complex ( left[boldsymbol{P t}(boldsymbol{e n})_{2}right]^{+2} ) is:
A. C.N. ( =2, ) O.N. ( =+2 )
B. C.N. ( =6, ) O.N. ( =+4 )
c. ( mathrm{c.N.}=4, mathrm{O} . mathrm{N}_{.}=+4 )
D. C.N.= ( 4,0 . ) N. ( =+2 )
12
319 The terminal and bridged ( C O ) ligands in
the compound ( left[boldsymbol{C o}_{2}(boldsymbol{C O})_{8}right] ) are respectively:
( A cdot 0,2 )
в. 6,1
( c cdot 5,2 )
D. 6,2
12
320 Turnbull’s blue is which of the following compound?
A. ferri cyanide
B. ferro ferricyanide
c. ferrous cyanide
D. ferri ferrocyanide
12
321 Which of following is the incorrect
match?
A. Insulin – zinc
B. Haemoglobin – Iron
c. Vitamin ( B_{12} ) – cobalt
D. chlorophyll – chromium
12
322 Which one of the following has largest number of isomers? ( (mathbf{R}= ) alkyl group,
en ( = ) ethylenediamine
( mathbf{A} cdotleft[operatorname{Ru}left(mathrm{NH}_{3}right)_{4} mathrm{C} 1_{2}right]^{+} )
B ( cdotleft[mathrm{Co}left(mathrm{NH}_{3}right)_{5} mathrm{C} 1right]^{2+} )
( mathbf{c} cdotleft[operatorname{Ir}left(mathrm{PR}_{3}right)_{2} mathrm{H}(mathrm{CO})right]^{2+} )
D. ( left[mathrm{Co}(mathrm{en})_{2} mathrm{C} 1_{2}right] )
12
323 Differentiate between primary and secondary valencies? 12
324 fin the mixed carbonyl, the other ligand is also pi acceptor, it would compete
with the ligand CO for gaining the metal
( boldsymbol{d}_{pi} ) electron charge. The higher is the extent of back donation in ( mathrm{CO} ), the lesser
will be the stretching vibration
frequency for ( C ) – 0 bond. If ( P F_{3} ) is better ( pi ) -acceptor than ( mathrm{CO} ), then answer the following.

Select the correct order of stretching vibration frequency ( C ) – 0 bond in the following molecules :
A ( cdotleft[N i(C O)_{4}right]>left[N ileft(P F_{3}right)(C O)_{3}right] )
B . ( left[N i(C O)_{4}right]<left[N i(C O)_{3}left(P F_{3}right)right] )
c. ( left[N i(C O)_{4}right]=left[N ileft(P F_{3}right)(C O)_{3}right. )
D. can not predicted

12
325 Which of the following compounds is/are expected to
be colored?

This question has multiple correct options
A ( cdot T ileft(N O_{3}right)_{4} )
( mathbf{B} cdotleft[C uleft(N C C H_{3}right)_{4}right] B F_{4}^{-} )
c. ( left[C rleft(N H_{3}right)_{6}right]^{3}+3 C l )
D ( cdot K_{3}left[V F_{6}right] )

12
326 In the compound ( C o C l_{3} .5 N H_{3} )
A. all the ( C l ) show primary valency only
B. Two ( C l ) show primary valency and one ( C l ) shows secondary valency
C. Two ( C l ) show primary valency and one ( C l ) shows primary valency as well as secondary valency
D. All the ( C l ) show secondary valency
12
327 ( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{4}(boldsymbol{C} boldsymbol{N})_{2}right] ) is the empirical
formula of a compound which has a
magnetic moment corresponding to ( 2 frac{2}{3} ) unpaired electrons per iron. The best possible formula of the compound is
( mathbf{A} cdotleft[F eleft(H_{2} Oright)_{6}right] 2left[F e(C N)_{6}right. )
B . ( left[F eleft(H_{2} O_{6}right)right]left[F eleft(H_{2} Oright)_{2}(C N)_{4}right] )
C ( cdotleft[F eleft(H_{2} Oright)_{4}(C N)_{2}right]_{2}left[F eleft(H_{2} Oright)_{4}(C N)_{2}right. )
D. None of these
12
328 How many structure isomers can you
draw for pentane?
A .2
B. 3
( c cdot 4 )
D. 5
12
329 Write the formula of the
potassiumtetracyanonickel(0).
12
330 The species having tetrahedral shape is
( – )
A ( cdotleft[P d C l_{4}right]^{2-} )
B . ( left[N i(C N)_{4}right]^{2} )
c. ( left[P d(C N)_{4}right]^{2} )
( mathbf{D} cdotleft[N i C l_{4}right]^{2-} )
12
331 What is the IUPAC name of
( left[N i(C N)_{4}right]^{2-} ? )
A. Tetracyanonickelate (II)
B. Tetracyanonickel (II)
C. Tetracyanonickelate (I)
D. None of these
12
332 For AX ionic crystal to exist in bcc
structure, the ratio of
( left(frac{r_{text {cation}}}{r_{text {anion}}}right) ) should be
A. between 0.41 to 0.73
B. greater than 0.73
C. less then 0.41
D. None of these
12
333 The total number of benzene derivatives
having the molecular formula ( C_{7} H_{7} C l )
is:
( A cdot 2 )
B. 3
( c cdot 4 )
D. 5
12
334 The configuration of sugars is related to glyceraldehyde and that of amino acids
is related to :
A. serine
B. leucine
c. alanine
D. glycine
12
335 Write the formulae of the following compounds. Potassium tetracyanoaurate (III) ion. 12
336 Which of the following relationship are correctly match?
This question has multiple correct options
( A )
B.
( c )
Positional isome
( D )
and
12
337 Which of the following statement(s) is/are true or false?
( S_{1}: ) In organometallic compounds, carbon is bonded to metals directly.
( S_{2}: ) Complexes having ( d^{0} ) or ( d^{10} ) configuration of metal ions are always diamagnetic.
( boldsymbol{S}_{3}: ) Extra stability of metal carbonyls is
explained by synergic bonding.
( S_{4}: ln F e(C O)_{5}, ) the Fe-C bond
possesses both ( sigma ) and ( pi ) characteristics.
A. TTTT
B. TTFF
c. FTFT
D. FTTT
12
338 ( M n O_{4}^{-} ) is of intense pink colour through Mn is in (+7) oxidation state, it is due to:
A. oxygen gives colour to it it
B. charge transfer when Mn(+7) gives its electron to oxygen and oxidise to Mn (+8) temporarily
c. charge transfer when oxygen gives its electron to Mn (+7) changing in Mn (+6)
D. none is correct explanation
12
339 A bidentate ligand has 3 coordination sites.
A . True
B. False
12
340 Write IUPAC name of the following complex compounds
( (mathrm{i})left[boldsymbol{N} boldsymbol{i}(boldsymbol{C} boldsymbol{O})_{4}right] )
(ii) ( boldsymbol{K}_{mathbf{2}}left[boldsymbol{H} boldsymbol{g} boldsymbol{I}_{4}right] )
12
341 ( C_{6} H_{4} C l_{2}+C l_{2} frac{F e}{(x)} C_{6} H_{5} C l_{3} ) Only one
structural isomer of ( Y ) is formed. Hence
( (X) ) is:
(doclorobenzeme ) (Trichlorobenzeme)
A . o-isomer
B. p-isomer
c. m-isomer
D. any of this
12
342 Cr atom is ……….. hybridized.
( mathbf{A} cdot s p^{3} d^{2} ) in both complexes
B. ( d^{2} s p^{3} ) in both complexes
( mathbf{C} cdot s p^{3} d^{2} ) in ( A ) and ( d^{2} s p^{3} ) in ( B )
D. ( d^{2} s p^{3} ) in ( A ) and ( s p^{3} d^{2} ) in ( B )
12
343 What is ( p K ) value of the complex
( left[boldsymbol{P t C l}_{4}right] ) if
( boldsymbol{P t}^{4+}+boldsymbol{C l}^{-} rightarrow[boldsymbol{P t C l}]^{3+} )
( boldsymbol{K}_{mathbf{1}}=mathbf{1 0}^{-mathbf{2}} )
( [boldsymbol{P t C l}]^{3+}+boldsymbol{C l}^{-} rightarrowleft[boldsymbol{P t} C l_{2}right]^{2+} )
( boldsymbol{K}_{2}=mathbf{1 0}^{-3} )
( left[boldsymbol{P t C l}_{2}right]^{2+}+boldsymbol{C l}^{-} rightarrowleft[boldsymbol{P t C l}_{3}right]^{+} )
( boldsymbol{K}_{3}=mathbf{1 0}^{-4} )
( left[boldsymbol{P t C l}_{3}right]^{+}+boldsymbol{C l}^{-} rightarrowleft[boldsymbol{P t} boldsymbol{C l}_{4}right] )
( boldsymbol{K}_{4}=mathbf{1 0}^{-4} )
12
344 Match the column:
( begin{array}{ll}text { Column-I } & text { Column-II } \ text { (a) }left[A gleft(N H_{3}right)_{2}right]^{+} & text {(p) Octahedral } \ text { (b) }left[C uleft(N H_{3}right)_{4}right]^{2+} & text { (q) Tetrahedral } \ text { (c) }left[C rleft(H_{2} Oright)_{6}right]^{2+} & text { (r) Trigonal bipyramidal } \ text { (d) }left[F e(C O)_{5}right] & text { (s) Square planar } \ & text { (t) Linear }end{array} )
( A )
( (a) t ;(b) s ;(c) p ;(d) r )
( mathbf{B} cdot(mathbf{a}) mathbf{t} )
( ;(b) s ;(c) r ;(d) p )
( c cdot(a) t ;(b) q ;(c) r ;(d) p )
( mathbf{D} cdot(a) q_{i}(b) s_{j} )
( (mathrm{c}) mathrm{p} ) (d)
12
345 Pick the correct name of
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{C l}right] boldsymbol{C l}_{2} )
a) Chloropentammine cobalt (III)
b) Pentammine cobalt (III) chloride
c)Chloropentammine cobalt (III) chloride
d)Pentaamminechloridocobalt(III)dichl
oride.
12
346 The ( $ $ ) IUPAC ( $ $ ) name of
( left[N ileft(N H_{3}right)_{4}right]left[N i C l_{4}right] ) is:
A. Tetrachloronickel (II)-tetraamminenickel(II)
B. Tetraamminenickel(II)-tetrachloronickel(II)
C. Tetraamminenickel(II)-tetrachloronickelate(II)
D. Tetrachloronickel (II)-tetraamminenickelate(O)
12
347 Give the electronic configuration of the following on the basis of crystal field splitting theory
( left[boldsymbol{C o F}_{6}right]^{3-} ) and ( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{2+} )
12
348 Which of the following name formula
combinations is not correct?
( mathbf{A} cdot Kleft[operatorname{Cr}left(N H_{3}right)_{2} C l_{4}right]- ) Potassium
diamminetetrachlorochromate(III)
B. ( left[operatorname{Co}left(N H_{3}right)_{4}left(H_{2} Oright) Iright] S O_{4} )
Tetraammineaquaiodocobalt(III) sulphate
C ( cdot K_{2}left[P t(C N)_{4}right] ) – Potassium tetracyanoplatinate(II)
D. ( left[M n(C N)_{5}right]^{2-} ) – Pentacyanomanganate (II) ion
12
349 Write the structural formula of the two
isomers of butane.
12
350 Question 1. Write the formulae for the following coordination
compounds :
a) Tetraamminediaquacobalt (III) chloride
(ii) Potassium tetracyanonickelate (II)
(i) Tris-(ethane-1,2-diamine) chromium(III) chloride
(iv) Amminebromidochloridonitrito-N-platinate (II)
(v) Dichlorido bis-(ethane-1,2-diamine) platinum (IV) nitrate
(vi) Iron (III) hexacyanoferrate (II)
12
351 What is the weight of oxygen required for the complete combustion of 2.8 kg of ethylene?
A. 2.8kg
B. 10.5kg
c. ( 9.6 mathrm{Kg} )
D. 96Kg
12
352 Assertion
EDTA is a hexadentate ligand.
Reason
Denticity of a ligand is given by number
of lone pairs donated to central atom by
a ligand.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
12
353 Potassium alum, ( K A lleft(S O_{4}right)_{2} cdot 12 H_{2} O )
is obtained in the form of octahedral
crystals when a solution of ( K_{2} S O_{4} ) and
( A l_{2}left(S O_{4}right)_{3} ) is concentrated by
evaporation. Suggest specific experiments to specify whether it is a complex or double salt.
A. One can determine conductance
B. One can determine freezing points
c. one can detect ( A l^{3+}, S O_{4}^{2-}, K^{+} )
D. All of these
12
354 Which of the following will show optical isomerism ?
( mathbf{A} cdotleft[C uleft(N H_{3}right)_{4}right]^{2} )
B ( cdotleft[Z n C l_{4}right]^{2} )
( mathbf{c} cdotleft[operatorname{Cr}left(C_{2} O_{4}right)_{3}right]^{3-} )
D ( cdotleft[operatorname{Co}(C N)_{6}right]^{3-} )
12
355 Select the correct statement(s) for
double salt:
This question has multiple correct options
A. Double salts are stable in solid state but loose their
identity in aqueous solution.
B. In double salt the properties of constituent ions are not changed in their aqueous solution.
C. Double salts are stable in solid-state and do not lose their identity in aqueous solution.
D. In double salt the properties of constituent ions are changed in their aqueous solution.
12
356 Which of the following is diamagnetic?
( A )
( left[M nleft(H_{2} Oright)_{6}right]^{2+} )
в. ( left[C uleft(H_{2} Oright)_{6}right]^{3+} )
c. ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{6}right]^{3+} )
D. ( left[mathrm{Co}left(mathrm{H}_{2} mathrm{O}right)_{6}right]^{2+} )
12
357 Write the formula of the following compounds.
(i) Triamminetriaquachromium (III) chloride.
(ii) Potassiumhexacyanoferrate(III).
12
358 Which of the following are
diastereomers?
i. Me H
ì.
( (mathbf{I}) )
iii. ( underset{mathbf{H}}{mathbf{H}}+underbrace{mathbf{C O O} mathbf{H}}_{mathbf{M e}} mathbf{B r} )
iv.
A. (I) and (III)
B. (II) and (IV)
c. (I) and (II)
D. None of the above
12
359 Which of the following facts about the complex ( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right] boldsymbol{C l}_{3} ) is wrong?
A. The complex involves ( d^{2} s p^{3} ) hybridisation and is octahedral in shape
B. The complex is paramagnetic
c. The complex is an outer orbital complex.
D. The complex gives white precipitate with silver nitrate solution.
12
360 In a particular isomer of
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{C l}_{2}right], ) the ( boldsymbol{C l}-boldsymbol{C o}-boldsymbol{C l} )
angle is ( 90^{circ}, ) the isomer is known as:
A. Linkage isomer
B. Optical isomer
c. Cis-isomer
D. Position isomer
12
361 Select the correct I.U.P.A.C. name for
( left[boldsymbol{P t} boldsymbol{C l}_{2}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{P t} boldsymbol{C l}_{4}right] )
A. Tetraamminedichloridoplatinate(IV) tetrachloridoplatinate(II)
B. Tetraamminedichloridoplatinate(II) tetrachloridoplatinate(IV)
c. Tetraamminedichloridoplatinum(IV) tetrachloridoplatinate(II)
D. All are correct
12
362 How many structural isomers of ( boldsymbol{C}_{mathbf{9}} boldsymbol{H}_{mathbf{1} mathbf{8}} )
that have a six membered ring and
trisubstituted?
A . 3
B. 4
( c .5 )
D. 6
12
363 When ( H_{2} O ) is shaken with an acidified
solution of ( K_{2} C r_{2} O_{7} ) in the presence of ether, the ethereal layer turns blue due to the formation of :
A. ( C r_{2} O_{3} )
B. ( C r O_{5} )
( mathrm{c} cdot mathrm{Cr} mathrm{O}_{4}^{-} )
D. none of these
12
364 Diethylene triamine is :
A. chelating agent.
B. polydentate ligand
c. tridentate ligand
D. All of these.
12
365 When aqueous solution of potassium fluoride is added to the blue coloured
aqueous ( boldsymbol{C u} boldsymbol{S O}_{4} ) solution, a green precipitate is formed. This observation can be explained as follows:
A. on adding ( K F, H_{2} O ) being weak field ligand is replaced by ( F^{-} ) ions forming ( left[C u F_{4}right]^{2-} ) which is green in colour.
B. potassium is coordinated to ( left[C uleft(H_{2} Oright)_{4}right]^{2+} ) ion present in ( C u S O_{4} ) and gives green colour
C. on adding ( K F, C u^{2+} ) are replaced by ( K^{+} ) forming a green complex.
D. blur colour of ( C u S O_{4} ) and yellow colour of ( K ) f form green colour on mixing
12
366 Which of the following statements is incorrect?
A ( cdot K_{4}left[N i(C N)_{4}right] ) and ( K_{2}left[N i(C N)_{4}right] ) both have same
magnetic moment
B. ( K_{4}left[N i(C N)_{4}right] ) is a diamagnetic while ( K_{4}left[N ileft(C l l_{4}right] ) is right.
paramagnetic
( mathbf{c} cdot_{K_{4}}left[N i(C N)_{4}right] ) is diamagnetic while ( K_{2}left[N i(C N)_{4}right] ) is
tetrahedral
D. ( K_{4}left[N i(C l)_{4}right] ) and ( K_{4}left[N i(C N)_{4}right] ) both have same
geometrical shapes
12
367 The complex ion ( left[boldsymbol{F e}(boldsymbol{C N})_{boldsymbol{6}}right]^{boldsymbol{4}-} ) contains:
( mathbf{A} cdot s p^{3} d^{2} ) hybrid orbitals with octahedral structure
B. total 104 electrons on ( F e^{+2} )
C. six sigma Bonds
D. total of 36 electrons on ( F e^{2+} ) ions.
12
368 Square planar complex of the type ( M A X B L(text { where } A, B, X text { and } L ) are
unidentate ligands) shows following set of isomers.
A. Two cis and one trans
B. Two trans and one cis
c. Two cis and two trans
D. Three cis and one trans
12
369 Recent X-ray work, IR and other
spectroscopic methods have proved that Turnbull’s blue is identical to
Prussian blue. What is the common
formula of Turnbull’s blue and Prussian
blue?
( mathbf{A} cdot F e_{3}left[F e(C N)_{6}right]_{2} )
B . ( F e_{4}left[F e(C N)_{6}right]_{3} )
c. ( K F eleft[F e(C N)_{6}right] )
D. ( K F e_{2}left[F e(C N)_{6}right] )
12
370 Atomic numbers of Cr and Fe are
respectively 24 and ( 26 . ) Which of the following is paramagnetic with spin of electron?
A ( cdot C r(C O)_{6} )
в ( cdotleft[F e(C O)_{5}right] )
c. ( left[F e(C N)_{6}right]^{4} )
D. ( left[C rleft(N H_{3}right)_{6}right]^{3+} )
12
371 The spin magnetic moment of cobalt in
the compound ( K_{2}left[C o(S C N)_{4}right] ) is :
A ( cdot sqrt{3} ) ВМ
B. ( sqrt{8} ) Вм
c. ( sqrt{15} ) ВМ
D. ( sqrt{24} ) BM
12
372 In which of the following complex ion, the central metal ion is in a state of
( s p^{3} d^{2} ) hybridisation?
( mathbf{A} cdotleft[C o F_{6}right]^{3-} )
B cdot ( left[operatorname{Co}left(N H_{3}right)_{6}right]^{3+} )
c. ( left[F e(C N)_{6}right]^{3} )
D cdot ( left[operatorname{Cr}left(N H_{3}right)_{6}right]^{3+} )
12
373 ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{S O}_{4}right] boldsymbol{C l} ) is an octahedral
coordination compound. Draw the diagram which indicate the splitting of ‘d’ orbitals in tetrahedral field.
12
374 Select the correct I.U.P.A.C. name
for ( mathrm{Mn}(mathrm{CO})_{5}left(sigma-mathrm{C}_{3} mathrm{H}_{5}right) )
This question has multiple correct options
A. Allylpentacarbonylmanganese (I)
B. Cyclopropylpentacarbonylmanganese (I)
c. Pentacarbonylcyclopropylmanganese (।)
D. Pentacarbonyl allylmanganese (I)
12
375 Write primary and secondary valency of ( boldsymbol{C o} operatorname{in}left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{n}_{boldsymbol{3}}right)_{boldsymbol{6}}right] boldsymbol{C l}_{3} ? ) 12
376 Question 14. What is the coordination entity formed when excess of
aqueous KCN is added to an aqueous solution of copper sulphate? Why is
it that no precipitate of copper sulphide is obtained when H2S(g) is passed
through this solution?
We Cu2+ forms complex with excess KCN. Cus+ ions are absent in the
solution of the complex,
12
377 (A) is binary orange coloured paramnetic compound of a univalent cation. 1.422 g of (A) reacts completely with 0.321 g of sulphur ina evacuated and sealed tube to give 1.743 g of a while crystalline solid (B) that forms hydrated
double salt (C) with ( A l_{2}left(S O_{4}right)_{3} ; ) Here,
compounds ( (A),(B), ) and ( (C) ) are ( K O_{2} ) ( boldsymbol{K}_{2} boldsymbol{S} boldsymbol{O}_{4} ) and ( boldsymbol{K}_{2} boldsymbol{S} boldsymbol{O}_{4} cdot boldsymbol{A} boldsymbol{l}_{2}left(boldsymbol{S} boldsymbol{O}_{4}right)_{3} cdot boldsymbol{2} boldsymbol{4} boldsymbol{H}_{2} boldsymbol{O} )
respectively.
If true enter 1 , else enter 0 .
12
378 How many cyclopentane structures (excluding stereoisomers) are possible
for ( boldsymbol{C}_{mathbf{7}} boldsymbol{H}_{mathbf{1 4}} )
12
379 Where among the following metal
complexes the one which exhibits optical activity is: ( (A A= ) bidentate
ligand; ( X= ) monodentate ligand
A ( cdot operatorname{cis}-left[M A_{4} X_{2}right] )
B . trans – [M A ( _{4} X_{2} ) ]
c. ( operatorname{cis}-left[M(A A)_{2} X_{2}right] )
D. ( operatorname{trans}-left[M(A A)_{2} X_{2}right] )
12
380 Finely divided iron combines with ( mathrm{CO} ) to give :
( mathbf{A} cdot F e(C O)_{5} )
в. ( F e_{2}(C O)_{9} )
( mathbf{c} cdot F e_{3}(C O)_{12} )
D. ( F e(C O)_{6} )
12
381 Select the correct order of magnetic
moment (in B.M.) from the following
options:
( mathbf{A} cdotleft[M n C l_{4}right]^{2-}>left[C o C l_{4}right]^{2-}>left[F e(C N)_{6}right]^{4-} )
B . ( left[F e(C N)_{6}right]^{4-}>left[M n C l_{4}right]^{2-}>left[C o C l_{4}right]^{2} )
C ( cdotleft[F e(C N)_{6}right]^{4-}>left[operatorname{CoCl}_{4}right]^{2-}>left[M n C l_{4}right]^{2} )
D. ( left[M n C l_{4}right]^{2-}>left[F e(C N)_{6}right]^{4-}>left[C o C l_{4}right]^{2-} )
12
382 The number of unpaired electrons in
nickel carbonyl is:
A . zero
B. one
c. four
D. five
12
383 Potassium ferrocyanide is stored in dark coloured bottles and kept away
from sunlight because:
This question has multiple correct options
A. undergoes displacement in sunlight
B. dark colors of the bottles absorb a lot of energy from light
c. undergoes decomposition in sunlight
D. evaporates in sunlight
12
384 Write:
(a) IUPAC name
(b) Central metal ion
(c) Ligand
(d) Coordination number
(e) Geometry of the complex
( left[boldsymbol{C r}(boldsymbol{e n})_{3}right] boldsymbol{C l}_{3} )
12
385 mole of amino cobalt chloride on
treating with an excess of ( A g N O_{3} )
solution gives 2 moles of ( A g C l )
precipitate. The number of ( C l^{-} ) ions
which satisfies both primary and secondary valency of cobalt in the complex is:
A .2
B. 3
( c . )
D.
12
386 How many structural isomers are possible with molecular formula
( boldsymbol{C}_{4} boldsymbol{H}_{10} boldsymbol{O} ? )
( A cdot 3 )
B. 5
( c cdot 6 )
D. 8
12
387 Geometric shapes of the complexes ( (p) )
(q) and (r) formed by the following
reactions respectively are:
( boldsymbol{C u}^{2+}(boldsymbol{a q})+boldsymbol{K} boldsymbol{C} boldsymbol{N}(boldsymbol{a} boldsymbol{q})(boldsymbol{e} boldsymbol{x} boldsymbol{c} boldsymbol{e} boldsymbol{s} boldsymbol{s}) rightarrow )
( operatorname{complex}(p) )
( boldsymbol{C o}^{2+}(boldsymbol{a q})+boldsymbol{K} boldsymbol{N} boldsymbol{O}_{2}(boldsymbol{s})+boldsymbol{H}^{+}(boldsymbol{a} boldsymbol{q}) rightarrow )
( operatorname{complex}(boldsymbol{q}) )
( Z n^{2+}(a q)+N a O H(a q)(e x c e s s) rightarrow )
( operatorname{complex}(r) )
A. Tetrahedral, octahedral and square planar
B. Tetrahedral, octahedral and tetrahedral
C. Square planar, octahedral and tetrahedral
D. Octahedral, octahedral and tetrahedral
12
388 How many structural isomers are
possible for ( C_{4} H_{10} O ? ) (only alcohol)
12
389 The correct representation of ( boldsymbol{C u} boldsymbol{S O}_{4} )
( mathbf{5} boldsymbol{H}_{2} boldsymbol{O} ) is:
( mathbf{A} cdotleft[C uleft(H_{2} Oright)_{5}right] S O_{4} )
B ( cdotleft[C uleft(H_{2} Oright)_{3} S O_{4}right] cdot 2 H_{2} O )
c. ( left[C u S O_{4} cdot H_{2} Oright] cdot 4 H_{2} O )
D. ( left[C uleft(H_{2} Oright)_{4}right] S O_{4} cdot H_{2} O )
12
390 The number of isomers possible for
square planar complex ( boldsymbol{K}_{2}left[boldsymbol{P} d boldsymbol{C l} boldsymbol{B} boldsymbol{r}_{2} boldsymbol{S} boldsymbol{C} boldsymbol{N}right] ) is:
( A cdot 2 )
B. 3
( c cdot 4 )
D.
12
391 Discuss the nature of bonding in metal carbonyls. 12
392 Which chromium compound in widely used in training of leather?
A. ( C r_{2} O_{3} )
в. ( C r O_{2} C l_{2} )
c. ( C r C l_{3} )
D. ( K_{2} S O_{4} cdot C r_{2}left(S O_{4}right)_{3} .24 H_{2} O )
12
393 The IUPAC name of the coordination
compound ( K_{3}left[F e(C N)_{6}right] ) is
A. potassium hexacyanoferrate(II)
B. potassium hexacyanoferrate(III)
C. potassium hexacyanoiron(II)
D. tripotassium hexacyanoiron(II)
12
394 Which compound to use for treatment
of tumor?
A ( cdot operatorname{Cis}left[P d C l_{2}left(N H_{3}right)_{2}right] )
B . ( operatorname{Trans}left[P d C l_{2}left(N H_{3}right)_{2}right] )
c. ( operatorname{cis}left[operatorname{PtCl}_{2}left(N H_{3}right)_{2}right. )
D. ( operatorname{Trans}left[operatorname{PtCl}_{2}left(mathrm{NH}_{3}right)_{2}right] )
12
395 Which of the following has a square planar structure?
( A )
( left[N i(C O)_{4}right] )
в.
c. ( left[N i(C N)_{4}right]^{2} )
D. All of the above
12
396 For a crystal, the angle of diffraction (2
( theta ) ) is ( 90^{circ} ) and the second order line has a
d value of ( 2.28 AA . ) The wavelength ( (text { in } AA) ) of X-rays used for Bragg’s diffraction is:
A . 1.612
B. 2.00
c. 2.28
D. 4.00
12
397 ( K_{3} C o F_{6} ) is a high spin complex. What
is the hybridisation of ( C o ) atom in this
complex?
( A cdot s p^{3} d )
B ( cdot s p^{3} d^{2} )
c. ( d^{2} s p^{3} )
D. ( d s p^{2} )
12
398 Question 1. Arrange the following complexes in the increasing order
conductivity of their solution:
[Co(NH3)3C13]. [Co(NH3)4C12]CI, [Co(NH3)6]C13, [Cr(NH3),CICI
malunecantautaidot nova:
12
399 Write the formula of :
Tetraamineaquachloridocobalt (III)
chloride.
12
400 Theoritically the No. of geometrical isomers expected for octahedral
complex ( [text {Mabcde} boldsymbol{f}] ) is :
A. zero
B. 30
c. 15
D. 9
12
401 The number of primary amines of
formula ( C_{4} H_{11} N ) is:
( A cdot 2 )
B.
( c cdot 4 )
D. 3
12
402 Which of the following complexes are
chelates?
This question has multiple correct options
A. bis-(dimethyl glyoximato) nickel (II)
B. Potassium ethylenediaminetetracyanato chromate (111)
C. Tetraamminedicyanocobalt (II)
D. trans-diglycinatopalladium (II)
12
403 Incorrect order of the value of ( Delta_{0} ) for the
given complexes?
( mathbf{A} cdotleft[operatorname{Cr}left(N H_{3}right)_{6}right]^{3+}left[R h(e n)_{3}right]^{+} )
C ( cdotleft[C oleft(H_{2} Oright)_{6}right]^{+2}<left[operatorname{Co}left(H_{2} Oright)_{6}right]^{+} )
D. ( left[N i c l_{6}right]^{4}-<left[N ileft(H_{2} Oright)_{6}right]^{+2} )
12
404 Select correct statement regarding
( left[N i(D M G)_{2}right] ) complex compound.
( A cdot ) It acts as oxidising agent because ( N i^{2+} ) cation is having EAN 34.
B. It is extra-stabilized by hydrogen bonding.
C. Its IUPAC name in bis(dimethylglyoximato)nickel(II)
D. It’s ligand contains two different donar site.
12
405 An example of chelating ligand is:
A ( cdot N O_{2} )
B. Chloro
c. Bromo
D. en
12
406 The total number of cyclic structural
isomers of ( C_{6} H_{12} ) is ( x . ) Find the sum of
digits of ( x ? )
(in case of single digit take another number as ( 0) )
12
407 Which of the following is first formed inert gas compound?
( mathbf{A} cdot X eleft[P t F_{6}right] )
В. ( operatorname{Kr}left[P t F_{6}right] )
c. ( X e F_{2} )
D. ( X e O_{3} )
12
408 Question 3. A complex of the type [M(AA) X 2.1″+ is known to be
optically active. What does this indicate about the structure of the
complex? Give one example of such complex.
12
409 What is the primary valency of
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{C l}_{2}right] boldsymbol{C l}_{2} ? )
12
410 Which one of the following is Zeise’s
salt?
( A )
( left[left(C_{2} H_{2}right)_{2} F eright] )
в. ( left(P h_{3} Pright)_{3} ) Rh( C l )
c. ( left[left(C_{6} H_{6}right)_{2} C rright] )
D ( cdot Kleft[P t C l_{3} . C_{2} H_{4}right] )
12
411 Find the total number of possible structural isomers of the compound ( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{P t} C l_{4}right] ) 12
412 Of the following complex ions, which is diamagnetic in nature?
A ( cdotleft[N i C l_{4}right]^{2} )
B . ( left[N i(C N)_{4}right]^{2} )
( mathbf{c} cdotleft[C u C l_{4}right]^{2} )
D. ( left[mathrm{CoF}_{6}right]^{3-} )
12
413 What statement is correct for Keto –
enol tautomerism?
This question has multiple correct options
A. Tautomersim is catalysed by acid and base.
B. Tautomers are present in a dynamic equilibrium state.
C. Generally keto form is more stable than enol form in mono ketones.
D. Atomic arrangements are same in tautomerism.
12
414 38 Match the complex ions given in
complex ions given in Column I with the hybridisation and
ed electrons given in Column II and assign the correct
code.
Column 1
(Complex ion)
A. [Cr(H, O) 13+
B. [Co(CN),1-
C [Ni(NH, P1
D. [MnF614-
Column II
(Hybridisation, number
of unpaired electrons)
1. dsp, 1
2. sp² d²,5
3. d²sp3,3
4. sp3 d², 2
m
Codes
A
(a) 3
(c) 3
( B
B
1
2
C
4
4
Y
D
2
1
ven in
ooo
(4) D.
(b) 4
(d) 4
(2)
A B
3
1
C
2
2
D
1
3
12
415 Identify the correct statement in the
following:
A. Propan-1-ol and propan-2-ol are position isomers
B. Ethanoic acid and methyl methanoate are position isomers
C. N-butane and isobutene are functional isomers
D. Dimethyl ether and ethanol are chain isomers
12
416 0.45 Assertion
A6 Assertion (A) [Fe(CN)6] ion shows magnetic moment corresponding to
two unpaired electrons.
Reason (R) Because it has d’sp type hybridisation.
12
417 Write the IUPAC name of
( left[boldsymbol{A} boldsymbol{g}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}right]left[boldsymbol{A} boldsymbol{g}(boldsymbol{C} boldsymbol{N})_{2}right] ) coordination
compound.
12
418 The IUPAC name for the coordination
compound ( boldsymbol{B} boldsymbol{a}left[boldsymbol{B} boldsymbol{r} boldsymbol{F}_{4}right]_{2} ) is:
A. barium tetrafluorobromate (V)
B. barium tetrafluorobromate (III)
c. barium bis(tetrafluorobromate) (III)
D. none of these
12
419 The most stable complex among the following is:
A ( cdot_{K_{3}}left[A lleft(C_{2} O_{4}right)right] )
в. ( left[P t(e n)_{2}right] C l )
c. ( left[A gleft(N H_{3}right)_{2}right] C l )
D ( cdot K_{2}[N i(E D T A) )
12
420 The strongest – ( mathrm{CO} ) bond is present in:
A ( cdotleft[C r(C O)_{6}right]^{+} )
в ( cdotleft[F e(C O)_{5}right] )
( mathbf{c} cdotleft[V(C O)_{6}right]^{-} )
D. all have equal strength
12
421 Match the geometry (given in column A) with the complexes (given in column B)
Geometry : A Complex : B
I: Octahedral
[
mathrm{P}:left[N i(C N)_{4}right]^{2}
]
( | )
Square planar
[
mathrm{Q}: N i(C O)_{4}
]
III. Tetrahedral ( mathrm{R}:left[F e(C N)_{6}right]^{4-} )
A. I-P, II-Q, III-R
B. I-R, II-P, III-Q
c. ।-R, ॥-Q, ॥|-P
D. I-Q, II-P, III-R
12
422 Which of the following complex compounds will exhibit highest paramagnetic behaviour? ( (A t . N o . T i=22, C r=24, C o= )
( mathbf{2 7}, boldsymbol{Z} boldsymbol{n}=mathbf{3 0}) )
( mathbf{A} cdotleft[Z nleft(N H_{3}right)_{6}right]^{2+} )
в. ( left[T ileft(N H_{3}right)_{6}right]^{3+} )
c. ( left[C rleft(N H_{3}right)_{6}right]^{3} )
D. ( left[operatorname{Co}left(N H_{3}right)_{6}right]^{3+} )
12
423 Which among the following species have the same number of electrons in
its outermost as well as penultimate shell ?
A. ( M g^{2+} )
B. ( O^{2} )
( c cdot F^{-} )
D. ( C a^{2} )
12
424 The hypothetical complex
chlorodiaquatriamminecobalt(III) chloride can be represented as:
A ( cdotleft[operatorname{CoCl}left(N H_{3}right)_{3}left(H_{2} Oright)_{2}right] C l_{2} )
B. ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{3}left(mathrm{H}_{2} mathrm{O}right) mathrm{Cl}_{3}right] )
c. ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{3}left(mathrm{H}_{2} mathrm{O}right)_{2} mathrm{Cl}right. )
D ( left[operatorname{Co}left(N H_{3}right)_{3}left(H_{2} Oright)_{3}right] C l_{3} )
12
425 The spin-only magnetic moment of sodium nitroprusside ion is :
A . 3.9 BM
B. 5.9 Вм
c. О ВМ
D. 1.8 BM
12
426 List various types of isomerism possible for coordination compounds, giving an example of each. 12
427 What is the shape of ( F e(C O)_{5} ) molecule
and which of the following d-orbitals involved in hybridization?
A . Tetrahedral ( d_{x^{2}-y^{2}} )
B. Trigonal bipyramidal, ( d_{x^{2}-y^{2}} )
C. Trigonal bipyramidal, ( d_{z} )
D. Square pyramidal
12
428 Give the structures of ( c i s- )
( left[boldsymbol{C o C l}_{2}(boldsymbol{e n})_{2}right] ) and ( boldsymbol{f a c i a l}- )
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{3}left(boldsymbol{N} boldsymbol{O}_{2}right)_{3}right] ) isomers
12
429 Which of the following complexes is/are correctly matched with their geometries? This question has multiple correct options
A ( cdotleft[mathrm{CoCl}_{4}right]^{2-}- ) tetrahedral
B . ( left[mathrm{Co}left(mathrm{PMe}_{3}right)_{4}right]- ) tetrahedral
C ( cdotleft[C u(C N)_{4}right]^{3-}- ) tetrahedral
D. ( left[F e(C O)_{4}right]^{2-}- ) square planar
12
430 Write structural formula of ( N i(C o)_{4} )
and ( boldsymbol{C r}(boldsymbol{C o})_{boldsymbol{6}} ? )
12
431 Which of the following represent ( s p- )
( s p-s p^{2}-s p-s p^{2}-s p^{3} )
hybridization from left to right order?
( A )
( C H_{2}=C H-C=C-C equiv N )
B. ( C H equiv C-C H=C=C H-C H_{3} )
c.
( N equiv C-C-C-C H-C H_{3} )
( D )
12
432 Which of the following is the correct arrangement of ligands in terms of field
strength?
A ( cdot C l^{-}<F^{-}<N C S^{-}<N H_{3}<C N^{-} )
B. ( N H_{3}<F^{-}<C l^{-}<N C S^{-}<C N^{-} )
c. ( C l^{-}<F^{-}<N C S^{-}<C N^{-}<N H_{3} )
D. ( N H_{3}<C N^{-}<N C S^{-}<C l^{-}<F^{-} )
12
433 The ( I U P A C ) name for the complex
( left[mathrm{Co}left(mathrm{NO}_{2}right)left(mathrm{NH}_{3}right)_{5}right] mathrm{Cl}_{2} ) is:
A. pentaamminenitrito-N-cobalt(III) chloride
B. nitrito-N-pentaamminecobalt(III) chloride
C . pentaamminenitrito-N-cobalt(II) chloride
D. pentaamminenitrito-N-cobalt(I) chloride
12
434 In the complex ( F e(C O)_{x}, ) the value of ( x )
is:
( A cdot 3 )
B. 4
( c cdot 5 )
D. 6
12
435 How many hydrate isomers of
( left[boldsymbol{F} boldsymbol{e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right] boldsymbol{C l}_{3} ) are possible?
12
436 Which among the following represent chelating ligands?
A ( . S C N^{-} )
в. ( C N )
c. 2,2 – dipyridyl
D. ( O H^{-} )
12
437 What is spectrochemical series? Explain the difference between a weak field ligand and a strong field ligand 12
438 Assertion
( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{3+} ) is strongly paramagnetic
whereas ( left[boldsymbol{F e}(boldsymbol{C N})_{boldsymbol{6}}right]^{3-} ) is weakly
paramagnetic.
Reason
( boldsymbol{H}_{2} boldsymbol{O} ) is a week field ligand and ( boldsymbol{C} boldsymbol{N}^{-} ) is
a strong field ligand.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
12
439 Consider the following ligands ( N H_{2}^{-} )
acac (Acetylacetone), ( O H^{-}, ) Gly, ( O_{2}^{-} ) Phen, DMG, ( N O_{2}^{-}, C O_{3}^{2-}, C l^{-}, C H_{3} C O O^{-}, e n, S O_{4}^{2} )
Then calculate value of ” ( boldsymbol{P}+boldsymbol{Q}-boldsymbol{R}- )
( boldsymbol{S}^{prime prime} . ) Here
P: Total number of ligands which act as bridging as well as monodentate only.
Q: Total number of flexidentate ligands.
R: Total number of bidentate ligands only.
S: Total number of unsymmetrical bidentate ligands.
( A )
B. 2
( c .5 )
D. 6
12
440 Select the correct I.U.P.A.C name for
( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{P t C l}_{4}right]: )
A. Tetraammineplatinum(II) tetrachloridoplatinate(II)
B. Tetraammineplatinate(II) tetrachloridoplatinate(II)
C. Tetraammineplatinate(II) tetrachloridoplatinum(II)
D. All are correct
12
441 Write the IUPAC name of the complex
( left[boldsymbol{A} boldsymbol{g}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}right]left[boldsymbol{A} boldsymbol{g}(boldsymbol{C} boldsymbol{N})_{2}right] )
12
442 Assertion
Hydroquinone is used as a developer for developing black and white photographic film.
Reason
Hydroquinone reduces silver bromide to
black silver particles and an inverted
image of the object is produced on a celluloid film.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
12
443 Hardness of water is estimated by the simplest complex formation titration Complex formed by cation in hard water during estimation of hardness is:
( mathbf{A} cdot N a_{2}left[C aleft(P O_{3}right)_{6}right] )
B . ( N a_{2}[M g(E D T A)] )
c. ( N a_{2}[P b(E D T A)] )
D. ( left[C aleft(S O_{4}right)_{2}right]^{2} )
12
444 Give two examples of Complex
compound.
12
445 The solubility of silver bromide in hypo
solution is due to the formation of:
A. ( A g_{2} S O_{3} )
B. ( A g_{2} S_{2} O_{3} )
( mathbf{c} cdotleft[A gleft(S_{2} O_{3}right)right] )
D. ( left[A gleft(S_{2} O_{3}right)_{2}right]^{3} )
12
446 41 Assertion (A) Toxic metal ions are removed by the chelating ligande
Reason (R) Chelate complexes tend to be more stable.
in the correct
12
447 In an octahedral complex, if ligands on one axis are displaced little away from their ideal positions, the crystal field splitting of d-orbitals for this complex is as given below
( boldsymbol{d}_{boldsymbol{x}^{2}-boldsymbol{y}^{2}} boldsymbol{d}_{z^{2}} boldsymbol{d}_{boldsymbol{x} boldsymbol{y}} boldsymbol{d}_{boldsymbol{y} boldsymbol{z}} boldsymbol{d}_{boldsymbol{x} boldsymbol{z}} )
The ligands are displaced on which axis/ axes:
A. x- and y
B. y-only
c. x-only
D. z-only
12
448 Account for the following:
(a) ( N i(C O)_{4} ) is tetrahedral
(b) ( left[boldsymbol{N} boldsymbol{i}(boldsymbol{C} boldsymbol{N})_{4}right]^{2-} ) is square planar
(c) ( left[N ileft(N H_{3}right)_{6}right]^{2+} ) is octahedral
12
449 How many EDTA (ethylenediamine tetraacetate) molecule(s) islare
required to make an
octahedral complex with ( mathrm{Ca}^{2+} ) ?
( A )
12
450 The isomer(s) of diethylether is/are:
This question has multiple correct options
A. methyl-n-propylether
B. butan-1-ol
c. butan-2-ol
D. butanal
12
451 Assertion
Pent-1-ene and 2-methylbut-1-ene are position isomers.
Reason
Position isomers have the same
molecular formula but differ in the
position of functional group.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Assertion is incorrect and Reason are correct
12
452 The IUPAC name of ( boldsymbol{K}_{4}left[boldsymbol{F} e(boldsymbol{C} boldsymbol{N})_{6}right] ) is:
A. potassium ferricyanide
B. potassium ferrocyanide
c. potassium hexacyanoferrate (II)
D. potassium hexacyanoferrate (III)
12
453 Some salts, although containing two different metallic elements, give test for one of them in solution. Such salts are:
A. complex salt
B. double salt
c. normal salt
D. none of these
12
454 Which of the following will form an octahedral complex?
A ( cdot d^{4} ) (low spin)
B. ( d^{8} ) (high spin)
c. ( d^{5} ) (low spin)
D. All of these
12
455 Co. ( C l_{3} .5 N H_{3} H_{2} O ) is a pink solid, the solution of this salt is also pink and
formed 3 mol of ( A g C l ) with silver nitrate
solution. On heating pink solid, it loses one water molecule and forms purple
solid having same ratio of ( boldsymbol{C} boldsymbol{o}: boldsymbol{N} boldsymbol{H}_{3} )
( C l ) as that of pink solid. The purple solid
when dissolved in water and treated
with silver nitrate forms 1 mol of ( A g C l )
Draw the structures and name of the
pink and purple solids.
12
456 Which one of the elements with the
following outer orbital configurations may exhibit the largest number of oxidation states?
( mathbf{A} cdot 3 d^{5} 4 s^{1} )
B . ( 3 d^{5} 4 s^{2} )
c. ( 3 d^{2} 4 s^{2} )
D. ( 3 d^{3} 4 s^{2} )
12
457 What is the hybridisation of ( left[N i(C N)_{4}right]^{2-} ? )
A ( cdot d s p^{2} )
B . ( s p d^{2} )
( c cdot s p^{3} )
D. None of these
12
458 Some salts although containing two different metallic elements give test for only one of them in solution. Such salts
are:
A. complexes
B. double salts
c. normal salts
D. both ( A ) and ( B )
12
459 The structures of ( left[N i(C O)_{4}right] ) and
( left[N ileft(left(P h_{3}right)_{3} Pright)_{2} C l_{2}right] ) are:
A. square planar in both cases
B. tetrahedral and square planar respectively
c. tetrahedral in both cases
D. square planar and tetrahedral respectively
12
460 Hybridisation of carbon in ( boldsymbol{C H}_{2}= ) ( boldsymbol{C H}-boldsymbol{C H}_{2} ) is:
( A cdot s p^{2} )
в. ( s p )
( c cdot s p^{3} )
D. all of these
12
461 The Keto form of phenol contains:
A. ( 3 pi, 13 sigma, 4 ) non-bonding electrons
B. ( 4 pi, 15 sigma, 3 ) non-bonding electrons
C. ( 3 pi, 14 sigma, 4 ) non-bonding electrons
D. ( 2 pi, 15 sigma, 6 ) non-bonding electrons
12
462 Question 6. Why are low spin tetrahedral complexes not formed 12
463 Optical isomerism is shown by
octahedral complexes having:
A. Two trans bidentate ligands
B. All mono denatate ligands
c. Two trans monodenatate ligands
D. All the three bidentate ligands
12
464 Question 28. How many ions are produced from the complex,
Co(NH3). Cl, in solution?
(a) 6
(b) 4
(c) 3
(d) 2
12
465 The total number of possible isomer for the complex compound:
( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{P t} boldsymbol{C l}_{4}right] )
( A cdot 3 )
B. 6
( c cdot 5 )
( D )
12
466 Which of the given statements is incorrect for the complex
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{3+} ? )
A. It is a low spin complex
B . It is ( d^{2} s p^{3} ) hybridised
c. It is paramagnetic
D. None of these
12
467 Synergic back-bonding is absent in transition metal carbonyls.
If true enter 1 , else enter 0 .
12
468 Shows which type of isomerism:
[
mathrm{CH}_{3} mathrm{CH}_{2}-mathrm{O}-mathrm{CH}_{2} mathrm{CH}_{3} quad mathrm{CH}_{3}^{mathrm{O}} mathrm{C}-mathrm{CH}_{2} mathrm{CH}_{2} mathrm{CH}_{3}
]
Diethyl ether Methyl propyl ether
A. Functional group isomerism
B. Geometrical isomerism
C . Metamerism
D. Position isomerism
12
469 The total number of possible isomers for square-planar
( left[boldsymbol{P t}(boldsymbol{C l})left(boldsymbol{N} boldsymbol{O}_{2}right)left(boldsymbol{N} boldsymbol{O}_{3}right)(boldsymbol{S} boldsymbol{C} boldsymbol{N})right]^{2-} ) is:
A . 16
B. 12
( c cdot 8 )
D. 24
12
470 Which of the following order is correct for the IR vibrational frequency of CO?
( ^{mathbf{A}} cdotleft[F e(C O)_{4}right]^{2-}<left[C o(C O)_{4}right]^{-}left[C o(C O)_{4}right]^{-}>left[N i(C O)_{4}right] )
( ^{mathbf{c}} cdotleft[F e(C O)_{4}right]^{2-}>left[C o(C O)_{4}right]^{-}<left[N i(C O)_{4}right] )
D ( cdotleft[F e(C O)_{4}right]^{2-}left[N i(C O)_{4}right] )
12
471 Which of the following does not contain any coordinate bond?
( mathbf{A} cdot H_{3} O^{+} )
B. ( B F_{4}^{-} )
c. ( H F_{2} )
D. ( N H_{4}^{+} )
12
472 State whether true or false:
IUPAC name of the complex ( left[N i C l_{4}right]^{2-} ) is Tetrachloronickelate(II) ion.
12
473 The total number of structural isomers
possible for an amine with molecular
formula ( boldsymbol{C}_{mathbf{4}} boldsymbol{H}_{mathbf{1 1}} boldsymbol{N} ) is :
A. 5
B. 6
( c cdot 7 )
D. 8
12
474 Which kind of isomerism is exhibited
by octahedral complex ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{4}right. )
( left.boldsymbol{B} boldsymbol{r}_{2}right] boldsymbol{C l} ? )
A. Geometrical and ionization
B. Geometrical and optical
c. optical and ionization
D. Geometrical only
12
475 Question 11. CuSO4.5H2O is blue in colour while Cuso is colourless
why ?
T
E U
tertelandse vacult it cances
12
476 Which of the following chemical reaction(s) is (are) involved in the
developing of photographic plate?
This question has multiple correct options
( mathbf{A} cdot C_{6} H_{4}(O H)_{2}+2 A g B r rightarrow 2 A g+C_{6} H_{4} O_{2}+2 H B r )
B. ( left.A g B r+2 N a_{2} S_{2} O_{3} rightarrow N a_{3}left[A g S_{2} O_{3}right)_{2}right]+N a B r )
( mathbf{c} cdot A g B r+2 N H_{3}(a q) rightarrowleft[A gleft(N H_{3}right)_{2}right] B r )
D. ( 2 A g B r+N a_{2} S_{2} O_{3} rightarrow A g_{2} S_{2} O_{3}+2 N a B r )
12
477 Esters are functional group isomers of:
This question has multiple correct options
A. Hydroxy aldehydes
B. ketones
c. Diketones
D. Alkanoic acid
12
478 Which of the following is correct IUPAC
name for ( boldsymbol{K}_{mathbf{2}}left[boldsymbol{C r}(boldsymbol{C} boldsymbol{N})_{2} boldsymbol{O}_{2}(boldsymbol{O})_{2} boldsymbol{N} boldsymbol{H}_{3}right] ? )
A. Potassium amminecyanoperoxodioxochromatic(IV)
B. Potassium amminecyanoperoxodioxochromium(V)
c. Potassium amminecyanoperoxodioxochromium(VI)
D. Potassium amminedicyanodioxoperoxochromate(VI)
12
479 Primary, secondary and tertiary amines
are:
A. chain isomers
B. position isomers
c. functional isomers
D. tautomers
12
480 Which of the following complex is useful in the dehydrogenation of alkanes?
( mathbf{A} cdotleft[left(P h_{3} Pright) R h C lright. )
B. ( left[left(P h_{3} Pright)_{3} R h_{2} C lright. )
( mathbf{c} cdotleft[left(P h_{3} Pright)_{3} R h C lright] )
D. ( left[left(P h_{3} Pright)_{3} R h C l_{2}right] )
12
481 Isomerisms exhibited by
( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}left(boldsymbol{H}_{2} boldsymbol{O}right)_{2} boldsymbol{C l}_{2}right]^{+} ) are:
A. ionisation, optical
B. hydrate, optical
c. geometrical, optical
D. coordinate, geometrical
12
482 Increase in the stability of the complex due to presence of multidentate ligands (which causes ring formation) is called chelation effect.
If true enter 1 , else enter 0 .
12
483 Write the IUPAC name of the following
(i) ( P t C l_{4} cdot 5 N H_{3} ) (gives 4 ions in
solution)
(ii) ( P t C l_{4} cdot 2 K C l ) gives 3 ions in
solution)
(ii) ( operatorname{Ir} C l_{3} cdot 3 N H_{3}left(text { no } C l^{-} ) ion is right.
precipitated)
(iv) ( C o C l_{3} cdot 4 N H_{3} mathrm{m} ) (one ( C l ) is
precipitated by ( A g N O_{3} )
12
484 The complexes
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]left[boldsymbol{C r}(boldsymbol{C} boldsymbol{N})_{6}right] boldsymbol{a} boldsymbol{n} boldsymbol{d}left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right. )
are the examples of which type of isomerism?
A. Linkage isomerism
B. lonization isomerism
c. coordination isomerism
D. Geometrical isomerism
12
485 Which of the following statement(s)
is/are true?
This question has multiple correct options
( mathbf{A} cdot ) In metal carbonyl complexes ( d_{C-O} ) increases compared to that in CO molecule
B. The pair of compounds ( left[C rleft(H_{2} Oright)_{6}right] C l_{3} ) and ( left[C r C l_{3}left(H_{2} Oright)_{3}right] cdot 3 H_{2} O ) show hydrate isomerism.
( mathrm{C} cdot d_{z 2} ) orbital of central metal atom/ion is used in ( d s p^{2} ) hybridisation.
D. Facid and Meridional isomers associated with
( left[M a_{3} b_{3}right]^{n pm} ) type complex compound, both are optically inactive.
12
486 The name of the compound
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{N} boldsymbol{O}_{2}right] boldsymbol{C l}_{2} ) will be?
A. pentaamminonitrocobalt(II) chloride
B. pentaamminenitrochloridecobaltate(III)
c. pentaamminenitrocobalt(III) chloride
D. pentanitrosoamminechlorocobaltate(III)
12
487 Mg is an important component of which biomolecule occurring extensively in living world?
A. Hemoglobin
B. Chlorophyll
c. Florigen
D. ATP
12
488 Question 2. FeSO4 solution mixed with (NH4)2SO4 solution in 1:1
molar ratio gives the test of Fe + ion but CuSO4 solution mixed with
aqueous ammonia in 1: 4 molar ratio does not give the test of Cu2+ ion.
Explain why?
Find the nature of the compounds formed by the given reagent as double
salts give the test of all the constituent ions whereas complexes do not.
12
489 Question 1. Explain the bonding in coordination compounds in terms
of Werner’s postulates.
12
490 In the given complexes ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}left(boldsymbol{H}_{2} boldsymbol{O}right)right]^{3+} ldots )
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{C l}right]^{2+} ldots .2 )
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{3+} ldots . .3 )
The decreasing order of ( lambda ) absorbed is:
A. ( (i i i)>(i i)>(i) )
B. ( (i i i)>(i)>(i i) )
c. ( (i i)>(i)>(i i i) )
D. ( (i i)>(i i i)>(i) )
12
491 Ethylenediamine displaces ( H_{2} O ) in the
complex ( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{3+} ) in three steps.
( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{3+}+boldsymbol{3} boldsymbol{e n} rightarrowleft[boldsymbol{F} boldsymbol{e}(boldsymbol{e n})_{3}right]^{3+}+ )
( 6 H_{2} O )
Stepwise formation constants are:
( log K_{1}=4.34 )
( log K_{2}=3.31 )
( log K_{3}=2.05 )
Overall formation constant is ( boldsymbol{A} times mathbf{1 0}^{mathbf{2 B}} )
( B ) in question is:
12
492 The correct order of ligands for writing the formula of complex compounds is
A. neutral, anionic, cationic
B. anionic, neutral, cationic
c. anionic, cationic, neutral
D. cationic, neutral, anionic
12
493 What is the correct name of ( I F_{7} ? )
A. Iron heptafluoride
B. lodine heptafluoride
c. lodine septafluoride
D. Iron (IV) septafluoride
12
494 ( boldsymbol{C o}^{2+}(boldsymbol{a} boldsymbol{q} cdot)+boldsymbol{S C N}^{-}(boldsymbol{a q}) rightarrow ) Complex
( (boldsymbol{X}) )
( N i^{2+}(a q)+ ) dimethylglyoxime Complex ( (boldsymbol{Y}) ) The coordination number of cobalt and
nickel in both the complexes ( (X) ) and ( (Y) )
is four. The IUPAC names of the
complexes ( (X) ) and ( (Y) ) are respectively:
A. tetrathiocyanato-S-cobalt(II) and bis(dimethylglyoximate)nickel(II)
B. tetrathiocyanato-S-cobaltate(II) and bis(dimethylglyoximato)nickel(II)
C. tetrathiocyanato-S-cobaltate(II) and bis(dimethylglyoximato)nickelate(II)
D. tetrathiocyanato-S-cobaltate(III) and bis(dimethylglyoximato)nickel(II)
12
495 Q. 48 COSO CL 5NH, exists in two isomeric forms ‘A’ and ‘B. Isomer ‘A reacts
WIN AgNO3 to give white precipitate, but does not react with BaCl2.
Isomer ‘B’ gives white precipitate with BaCl, but does not react with
AgNO3. Answer the following questions.
(a) Identify ‘A’ and ‘B’ and write their structural formulae.
(b) Name the type of isomerism involved.
(c) Give the IUPAC name of ‘A’ and ‘B’.
12
496 Which of the following metal ion is present in Ziegler-Natta catalyst?
A ( cdot F e^{2} )
B. ( Z r^{4} )
c. ( R h^{+} )
D. ( T i^{4} )
12
497 Among the metal carbonyls
( left[boldsymbol{M} boldsymbol{n}(boldsymbol{C O})_{boldsymbol{6}}right]^{+},left[boldsymbol{T} boldsymbol{i}(boldsymbol{C} boldsymbol{O})_{boldsymbol{6}}right],left[boldsymbol{C r}(boldsymbol{C O})_{boldsymbol{6}}right] )
and ( left[V(C O)_{6}right]^{-} ) the ( C-O ) bond order
would be lowest in :
( mathbf{A} cdotleft[M n(C O)_{6}right]^{+} )
в. ( left[T i(C O)_{6}right]^{2} )
( mathbf{c} cdotleft[C r(C O)_{6}right] )
D. ( left[V(C O)_{6}right]^{-} )
12
498 The number of alkenyl groups possible
(structural isomers) from ( C_{4} H_{7}- ) are:
( A cdot 7 )
B. 5
( c .3 )
D.
12
499 The ( pi ) acid ligands donate their lone pairs to the metal to form a normal
bond with the latter in addition to it, the
vacant orbitals accept e- from the filled metal orbitals to form a type of ( pi ) -bond which supplements the ( sigma ) bond.

Which of the following has lowest C-O bond length?
A ( cdotleft[N i(C O)_{4}right] )
в. ( left[operatorname{Co}(C O)_{4}right]^{-} )
c. ( left[F e(C O)_{4}right]^{2} )
D. ( left[M n(C O)_{6}right]^{+} )

12
500 A metal ion ( M^{n+} ) having ( d^{4} ) valence electronic configuration combines with three bidentate ligands to form a complex compound. Assuming ( triangle boldsymbol{a}>boldsymbol{p} )
(i) Write the electronic configuration of
( boldsymbol{d}^{4} ) ion.
(ii) What type of hybridisation will ( M^{n+} ) ion has?
(iii) Name the type of isomerism exhibited by this complex.
12
501 Which of the following represents a chelating ligand?
A ( cdot H_{2} O )
в. ( C l )
c. ( O H^{-} )
D. ( D M G )
12
502 ( s p^{3} d^{2} ) hybridisation is present in:
( mathbf{A} cdotleft[C o F_{6}right]^{-3} )
B. ( left[N i(C o)_{4}right] )
C. ( left[operatorname{Co}left(N H_{3}right)_{6}right]^{+2} )
D. All
12
503 Q. 36 Match the complex ions given in Column
the complex ions given in Column I with the colours given
Column II and assign the correct code.
Column
Column II
(Complex ion)
(Colour)
A. [CO(NH, GI”. 1. Violet
B. [Ti(H, O 3 + . 2 Green
C. INICH, 0)
3. Pale blue
D. INICH,O), (en) + (aq) 4 Yellowish orange
Codes
A B C D on on A B C D B m
(a) 1 2 4 5
(b) 4 3 2 1
(c) 3 2 4 11
(d) 4 1 2 3
12
504 What is the relation between the above
given compounds?
A. Chain isomers
B. Positional isomers
c. Homologs
D. Metamers
12
505 Indicate the types of isomerism exhibited by the following complexes and draw the structures for these
isomers:
( mathbf{A} cdot Kleft[operatorname{Cr}left(H_{2} Oright)_{2}left(C_{2} O_{4}right)_{2}right] )
в. ( left[operatorname{Co}(e n)_{3}right] C l_{3} )
( ^{mathbf{c}} cdotleft[operatorname{Co}left(N H_{3}right)_{5}left(N O_{2}right)right]left(N O_{3}right)_{2} )
D ( cdotleft[operatorname{Pt}left(N H_{3}right)left(H_{2} Oright) C l_{2}right] )
12
506 When a coordination compound
( C O C l_{3} .6 N H_{3} ) is mixed with ( A g N O_{3}, 3 )
moles of AgCl are prepitated per mole of the compound. write
i) structure formula of the complex.
ii) IUPAC name of the complex.
12
507 How many structural isomers can be
represented by alkane, ( C_{5} H_{10} ? )
12
508 In which of the following pairs both members contain peroxy linkage?
A ( cdot H_{2} S_{2} O_{8}, H_{4} P_{2} O_{6} )
в. ( H_{2} S O_{5}, H_{4} P_{2} O_{7} )
c. ( H_{2} T i O_{4}, H_{4} P_{2} O_{8} )
D. ( S_{3} O_{9}, P_{4} O_{7} )
12
509 What is the IUPAC name of ( K_{2}left[P t C l_{6}right] ? )
A. Potassium hexachloro platinum
B. Potassium hexachloro platinum (IV)
C. Potassium hexa chloro platinate (IV)
D. Dipotassium hexa chloro platinum
12
510 The number of structural alcoholic
isomers for ( C_{4} H_{10} O ) is:
( A cdot 2 )
B. 3
( c cdot 4 )
D.
12
511 Which is a coordination compund?
A. Ferrous ammonium sulphate
B. Carnallite
C . Potassium ferrocyanide
D. Gypsum
12
512 On the basis of the following observations made with aqueous
solutions. assign secondary valences to metals in the following compounds:
Formula
of AgCl precipitated per mole of the compounds with excess AgNO,
( (i) P d C l_{2} .4 N H_{3} )
( (i i) N i C l_{2} .6 H_{2} O )
( (text {iiii}) P t C l_{4} .2 H C l )
( (i v) C o C l_{3} .4 N H_{3} )
( (v) P t C l_{2} cdot 2 N H_{3} )
12
513 Which of the following is true with respect to crystal field splitting in complexes?
( mathbf{A} cdot Delta_{0}=Delta_{t} )
B. ( triangle_{0}=frac{9}{4} Delta_{t} )
c. ( Delta_{t}=frac{9}{4} Delta_{0} )
D. ( triangle_{t}=frac{2}{3} Delta_{0} )
12
514 The formula of a carbonyl complex of
cobalt, ( (C O)_{n} C o-C o(C O)_{n}, ) in which
there a single covalent ( C o-C o ) bond
is:
A. ( C o_{2}(C O)_{4} )
в. ( operatorname{Co}_{2}(mathrm{CO})_{6} )
c. ( operatorname{Co}_{2}(C O)_{8} )
D. ( C o_{2}(C O)_{10} )
12
515 shown
Q. 27 Magnetic moment of [MnCl212-is 5.92 BM. Explain giving reason present.
aleotron present in the
12
516 Co-ordination number of central metal
( operatorname{atom} operatorname{in} N a_{3}left[A lleft(C_{2} O_{4}right)_{3}right] ) and
( left[boldsymbol{C o}(boldsymbol{e n})_{2} boldsymbol{C l}right] boldsymbol{C l} ) are:
A. 6 and 6
B. 6 and 5
c. 5 and 5
D. 6 and 4
12
517 Question 13. Aqueous copper sulphate solution (blue in colour)
gives :
(i) a green precipitate with aqueous potassium fluoride.
(ii) a bright green solution with aqueous potassium chloride.
Explain these experimental results.
12
518 When mole of ( C o C l_{3} .6 N H_{3} ) is treated
with excess of ( mathrm{AgNO}_{3} ) solution. The number of moles of AgCl precipitated is:
A. 3
B.
( c )
D.
12
519 Match column-I with column-II 12
520 ( left[boldsymbol{F} boldsymbol{e} boldsymbol{F}_{6}right]^{3-} ) has Fe atom
hybridised with unpaired electrons.
A ( cdot d^{2} s p^{3}, 4 )
B ( cdot d^{2} s p^{3}, 5 )
( mathrm{c} cdot s p^{3} d^{2}, )
D. ( s p^{3} d^{2}, 3 )
12
521 A functional isomer of 1-butyne is:
A. 2-butyne
B. 1-butene
c. 2-butene
D. 1,3-butadiene
12
522 Based on VBT, ( left[boldsymbol{F} boldsymbol{e} boldsymbol{C l}_{mathbf{6}}right]^{3-} ) has ( boldsymbol{C l}^{-} ) as
weak ligands. Fe is ( s p^{3} d^{2} ) hybridized
(outer orbital complex) having five
unpaired electrons. ( left[boldsymbol{F e}(boldsymbol{C N})_{boldsymbol{6}}right]^{3-} ) has
( C N^{-} ) as strong ligand. Fe is ( d^{2} s p^{3} ) hybridized (inner orbital complex) having only one unpaired electron.
Hence, ( left[boldsymbol{F} e C l_{6}right]^{3-} ) is more paramagnetic
( operatorname{than}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{boldsymbol{8}}right]^{boldsymbol{3}-} )
If true enter 1 , else enter 0 .
12
523 The catalyst used for olefin polymerisation is:
A. zieger-Natta Catalyst
B. Raney Nickel Catalyst
c. wilkinson Catalyst
D. Merrifield Resin
12
524 Write the IUPAC name of the complex
( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{C l}_{2}right]^{+} . ) What type of
isomerism does it exhibit?
12
525 Select the correct IUPAC name for ( left[left(mathrm{NH}_{3}right.right. )
( left.mathrm{T}_{4} mathrm{Co}(mathrm{OH})left(mathrm{NH}_{2}right) mathrm{Co}left(mathrm{NH}_{3}right)_{4}right]^{4+} )
A. ( mu text { -Amido- } mu text { -hydroxidobis (tetraammine cobalt }(4+)) )
in
B. ( mu ) -Amido- ( mu ) -hydroxidobis (tetraarnmine cobalt(III)) ion
c. ( mu ) -t-Amido- ( mu ) -hydroxidobis (tetraarnmine cobaltate
( (4+)) ) ion
D. ( mu ) -Amido- ( mu ) -hydroxidobis (tetraarnmine cobaltate (III))) ion
12
526 Cycloalkanes are isomeric with:
A. alkadienes
B. alkynes
c. aromatic compounds
D. olefins
12
527 Which are isomers?
A. Ethanol and ethoxy ethane
B. Methanol and methoxy methane
C. Propionic acid and ethyl acetate
D. Propanal and acetone
12
528 ( operatorname{In} operatorname{both} N i(C O)_{4} ) and ( left[N i C l_{4}right]^{-2}, N i ) is
( s p^{3} ) hybridised.
A. True
B. False
12
529 According to CIP Sequence rule, the correct arrangement in order of decreasing priority is :
A. ( -O H>C H_{2} O H>-C H O>-C O O H )
в. ( -O H>C O O H>-C H O>-C H_{2} O H )
с. ( -C O O H>O H>-C O H>-C H_{2} O H )
D. ( -C O O H>C H O>-C H_{2} O H>-O H )
12
530 ( boldsymbol{F} boldsymbol{e}_{2}(boldsymbol{C} boldsymbol{O})_{9} ) is diamagnetic. Which of the
following reason is correct?
A. Presence one ( C O ) as bridge group
B. Presence of monodenate ligand
c. Metal-metal (Fe – Fe) bond in molecular
D. Resonance of ( C O )
12
531 What is the electronic configuration of elements of ( I I I ) rd group
A ( cdot 1 s^{2}, 2 s^{2} 2 p s^{3} )
В ( cdot 1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{1} )
C ( cdot 1 s^{2}, 2 s^{2} 2 p^{6} )
D. ( 1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{1} )
12
532 What is the oxidation number of gold in
the complex ( left[A u C l_{4}right]^{1-} ? )
( A cdot+4 )
B. +3
( c cdot+2 )
D. +1
12
533 The two compounds ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C} |_{2}-boldsymbol{C H}_{2}- )
( boldsymbol{C H}_{3} ) and ( boldsymbol{C H}_{3}-stackrel{boldsymbol{O} |}{boldsymbol{C}}-underbrace{boldsymbol{C H}_{3}}_{mid boldsymbol{C H}_{3}}-boldsymbol{C H}_{3} )
may be considered as:
A. position isomers
B. metamers
c. stereoisomers
D. tautomers
12
534 The type of isomerism present in
pentaammine nitro chromium (III) chloride is :
A . optical
B. linkage
c. hydrate
D. polymerization
12
535 The total number of isomers for a
square planar complex ( left[boldsymbol{M}(boldsymbol{F})(boldsymbol{C l})(boldsymbol{S C N})left(boldsymbol{N O}_{2}right)right] )
A . 12
B. 8
c. 16
( D )
12
536 Ambidentate ligands can show linkage isomerism.
A . True
B. False
12
537 Ferrocene is:
( mathbf{A} cdot F eleft(eta^{2}-C_{6} H_{5}right)_{2} )
B ( cdot F eleft(eta^{5}-C_{5} H_{5}right)_{2} )
( mathbf{c} cdot F eleft(eta^{6}-C_{6} H_{6}right)_{2} )
D. ( F eleft(eta^{3}-C_{3} H_{3}right)_{2} )
12
538 The magnetic moment of a complex is
4.9 B.M. Thus, unpaired electron(s)
maybe
12
539 ( B r C H_{2}-C H_{2}-C H=O ) and
( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-underset{mid boldsymbol{B} boldsymbol{r}}{boldsymbol{C}}=boldsymbol{O} ) are :
A. Functional isomers
B. Position isomers
c. chain isomers
D. Metamers
12
540 Which of the following statements are
correct?
This question has multiple correct options
A. Diastereomers have different physical properties and similar but not identical chemical properties
B. Enantiomers have the same physical and chemical properties but different physiological properties
C. Polarimeter is used in measuring the optical rotation of a compound.
D. Only organic molecules show optical isomerism.
12
541 What is the IUPAC name of
( boldsymbol{K}left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2} boldsymbol{C l}_{4}right] ? )
A. Potassium diamminetetrachlorochromate(III)
B. Potassium diamminetetrachlorochromium(III)
c. Potassium diamminetetrachlorochromate(II)
D. None of these
12
542 Chrome green is
( mathbf{A} cdot P b C r O_{4}+F e^{I I I}left[F e^{I I}(C N)_{6}right] )
( mathbf{B} cdot C r_{2} O_{5} )
( mathbf{c} cdot P b C r O_{4} )
D. ( F e C r O_{4} )
12
543 Match the column. 12
544 1 mole of co-ordinate compound ( C o C l_{3} )
on reaction with excess AgNCI 143.5 gms of AgCl ppt. Then number of chloride ions satisfying both primary valency and secondary valency are?
A .2
B. 3
c. 1
D.
12
545 The primary and secondary valency of Co in the octahedral complex
( boldsymbol{C o C l}_{3} cdot boldsymbol{5} boldsymbol{N} boldsymbol{H}_{3} ) are
A. 6 and 3
B. 3 and 6
( c cdot 4 ) and 3
D. 3 and
12
546 A Planar Complex (Mabcd) gives:
A. Two optical isomer
B. Two geometrical isomer
c. Three optical isomer
D. Three geometrical isomers
12
547 A square planar complex is formed by hybridization of which atomic orbitals?
A ( . s, p_{x}, p_{y}, d_{y z} )
В. ( s, p_{x}, p_{y}, d_{x^{2}-y^{2}} )
c. ( s, p_{x}, p_{y}, d_{z^{2}} )
D. ( s, p_{y}, p_{x}, d_{x y} )
12
548 When 0.01 mole of a cobalt complex is treated with excess silver nitrate
solution, 4.305 g silver chloride is precipitated. The formula of the complex is:
( mathbf{A} cdotleft[operatorname{Co}left(N H_{3}right)_{6}right] C l_{3} )
В . ( left[C oleft(N H_{3}right)_{6} C l_{3}right] )
( mathbf{c} cdotleft[operatorname{Co}left(N H_{3}right)_{5} C lright] C l_{2} )
D ( cdotleft[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right] N O_{3} )
12
549 The number of cyclic structural isomers
of ( C_{5} H_{10} ) are:
A . 4
B. 5
( c cdot 6 )
D.
12
550 Tautomerism is exhibited by :
A ( cdot C_{6} H_{5}-C H=C H-O H )
B.
( c )
D. None of the above.
12
551 Give the type of isomerism exhibited by each of the following pairs. n-Butyl alcohol and diethyl ether
A. Functional
B. Position
c. Tautomerism
D. None of These
12
552 Dative bond is present in:
( A cdot S O_{3} )
в. ( N H_{3} )
c. ( B a C l_{2} )
D. ( B F_{3} )
12
553 Consider the following isomerism:
(i) ionization (ii) hydrate (iii) coordination (iv) geometrical (v) optical Which of the above isomerisms are
exhibited by ( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}(boldsymbol{O} boldsymbol{H})_{2} boldsymbol{C l}_{2}^{-} ?right. )
( A cdot ) (i) and (v)
B. (ii) and (iii)
c. (iii), (ii) and (i)
D. (iv) and (v)
12
554 How many isomeric amines with the
molecular formula ( C_{7} H_{9} N ) contain a
benzene ring?
A. Two
B. Three
c. Four
D. Five
12
555 Select correct statement(s) regarding
given complexes:
( mathbf{A} cdotleft[F e(C O)_{5}right], ) the orbitals used for hybridization in ( mathrm{Fe} ) atom are ( s, p_{x}, p_{y}, p_{z}, d_{z 2} ) and its is high spin complex
( mathbf{B} cdotleft[P tleft(N H_{3}right)_{2} C l_{2}right], ) the orbitals used for hybridization on
Pt atom are ( s, p_{x}, p_{y}, d_{x^{2}-y^{2}} ) and it is low spin complex
C ( cdotleft[mathrm{Cr}left(mathrm{H}_{2} mathrm{O}right)_{6}right]^{3+} ), the orbitals used for hybridization in ( mathrm{Cr} )
atom are ( s, p_{x}, p_{y}, p_{z}, p_{x^{2}}, d_{x^{2}-y^{2}} ) and it is high spin complex
D. ( N i(C O)_{4} ), the orbitals used for hybridization in ( mathrm{Ni} ) atom are, ( s, p_{x}, p_{y}, p_{z}, ) and it is low spin complex
12
556 From the stability constant
hypothetical values ( ), ) given below,
predict which is the strongest ligand?
( mathbf{A} )
[
C u^{2+}+4 N H_{3} rightleftharpoonsleft[C uleft(N H_{3}right)_{4}right]^{2+}, K=4.5 times 10^{11}
]
( B )
[
C u^{2+}+4 C N^{-} rightleftharpoonsleft[C u(C N)_{4}right]^{2-}, K=2.0 times 10^{27}
]
( mathbf{c} )
[
C u^{2+}+2 e n rightleftharpoonsleft[C u(e n)_{2}right]^{2+}, K=3.0 times 10^{15}
]
D.
[
C u^{2+}+4 H_{2} O rightleftharpoonsleft[C uleft(H_{2} Oright)_{4}right]^{2+}, K=9.5 times 10^{8}
]
12
557 Which of the following complex will show optical activity?
A ( cdot operatorname{trans}-left[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right]^{+} )
B . ( left[operatorname{Cr}left(text { H }_{2} text { O }right)_{6}right]^{3+} )
c. ( operatorname{cis}-left[operatorname{Co}left(N H_{3}right)_{2}(e n) 2right]^{3} )
D. ( operatorname{trans}-left[operatorname{Co}left(N H_{3}right)_{2}(e n)_{2}right]^{3+} )
12
558 The solubility of anhydrous ( A l C l_{3} ) and
hydrous ( A l C l_{3} ) in diethyl ether are ( S_{1} )
and ( S_{2} ) respectively, Then :
в. ( S_{1}>S_{2} )
c. ( s_{1}<S_{2} )
D. ( S_{1}<S_{1} ) but not ( S_{1}=S_{2} )
12
559 Q. 26 A complex of the type [M(AA), X2]” is kn
plex of the type [M(AA), X,+ is known to be optically active,
What does this indicate about the structure of the complex: live one
example of such complex.
tobodral structura
12
560 When ( K C N ) is added to ( C u S O_{4} )
solution, there is formation of the stable
water soluble complex. This complexis:
A ( cdot K_{4}left[C u(C N)_{6}right. )
В ( cdot K_{3}left[C u(C N)_{4}right] )
( mathbf{c} cdot_{K_{2}}left[C u(C N)_{4}right] )
D ( cdot Kleft[C u(C N)_{3}right] )
12
561 According to IUPAC nomenclature,
sodium nitroprusside is named is:
A. Sodium pentacyanonitrosyl ferrate(III)
B. Sodium nitroferricyanide
C. Sodium nitroferrocyanide
D. Sodium pentacyanonitrosyl ferrate(II)
12
562 The primary valency and secondary valency of central metal ion and the no. of total ions produced in aqueous
solution for ( boldsymbol{K}left[boldsymbol{C o}(boldsymbol{O} boldsymbol{X})_{2}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}right] )
complex respectively is
A. 3,4,2
в. 4,4,2
( mathrm{c} .3,6,2 )
D. 3,6,1
12
563 Match List 1 with List 2 12
564 The IUPAC name for ( left[N i(C O)_{4}right] ) is :
A. Tetracarbonylnickel (II)
B. Tetracarbonylnickel (O)
c. Tetracarbonylnickelate (II)
D. Tetracarbonylnickelate (0)
12
565 The correct increasing order of 10 Dq. value for the given chromium complexes is :
(1) ( left[boldsymbol{C r}(boldsymbol{e n})_{3}right]^{3+} )
(2)( left[boldsymbol{C r}(boldsymbol{o x})_{3}right]^{3-} )
(3) ( left[boldsymbol{C r} boldsymbol{F}_{mathbf{6}}right]^{3-} )
(4) ( left[boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{3+} )
A. ( 4<3<1<2 )
в. ( 3<2<4<1 )
c. ( 4<3<2<1 )
D. ( 3<4<1<2 )
12
566 No. of 5 membered ring in ( left[(boldsymbol{C a}(boldsymbol{E} boldsymbol{D} boldsymbol{T} boldsymbol{A})]^{-2} boldsymbol{i s}right. )
A . 5
B. 6
( c cdot 7 )
D. 8
12
567 For the square planar complex [Mabcd] where ( mathrm{M} ) is the central atom and ( mathrm{a}, mathrm{b}, mathrm{c}, mathrm{d} ) are monodentate ligands, the number of possible geometrical isomers are:
A. one
B. two
( c . ) three
D. four
12
568 The incorrect statement(s) among
the following is (are):
¡) Primary valency of a transition metal
ion in complex represent its oxidation
number.
ii) ( Z n^{2+} ) is colourless.
iii) ( M n C l_{2} ) exhibits green color in aqueous
solution.
iv) ( F e, C o, N i ) complexes are diamagnetic
in nature.
A. i and ii
B. ii only
c. iii and iv
D. iv only
12
569 Which kind of isomerism is exhibited
by octahedral ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{4} mathrm{Br}_{2}right] mathrm{Cl} ) ?
A. Geometrical and optical
B. Geometrical and ionsation
c. optical and ionisation
D. none of these
12
570 Write IUPAC name of the complex
( left[boldsymbol{C o}(boldsymbol{e n})_{2}left(boldsymbol{H}_{2} boldsymbol{O}right)(boldsymbol{C} boldsymbol{N})right]^{2+} )
12
571 The value of ( Delta_{circ} ) for complexes given below follow the order
(i) ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{+3} )
(ii) ( left[boldsymbol{R h}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{+3} )
(iii) ( left[operatorname{Ir}left(N H_{3}right)_{6}right]^{+3} )
A. ( I<I I II I>I I I )
c. ( I<I I<I I I )
12
572 Select the correct order of ( mathrm{C} ) – ( mathrm{O} ) bond
Iength:
( mathbf{A} cdotleft[M(C O)_{3}left(P F_{3}right)right]<left[M(C O)_{3}left(P C l_{3}right)right]left[M(C O)_{3}left(P C l_{3}right)right]> )
( left[M(C O)_{3}left(P M e_{3}right)right] )
( mathbf{c} cdotleft[M(C O)_{3}left(P F_{3}right)right]=left[M(C O)_{3}left(P C l_{3}right)right]= )
( left[M(C O)_{3}left(P M e_{3}right)right. )
( mathbf{D} cdotleft[M(C O)_{3}left(P F_{3}right)right]=left[M(C O)_{3}left(P C l_{3}right)right]> )
( left[M(C O)_{3}left(P M e_{3}right)right] )
12
573 Hence, correct choices are options (a) and
omic number of Mn Fe Co and Ni are 25, 26, 27 and 28 respectively
of the following outer orbital octahedral complexes have same
Q. 16 Atomic number of Mn, Fe,
Which of the following outer or
number of unpaired electrons?
(a) [MnCl.13-
(C) (COF. 13-
(b) [FeFg13-
(d) [Ni(NH3)411
12
574 Which of the following complexes is used to be as an anticancer agent?
A ( cdot ) mer ( -left[operatorname{Co}left(N H_{3}right)_{3} C lright] )
B. ( operatorname{cis}-left[P t C l_{2} N H_{3}right)_{2} )
c. ( operatorname{cis}-K_{2}left[P t C l_{2} B r_{2}right] )
D. ( N a_{2} ) Co ( C l_{4} )
12
575 Name the following compound
according to IUPAC system:
A. Octamine- ( mu ) -chloro- ( mu ) -nitrodicobalt(III) sulphate
B. Octaammine- ( mu ) -chloro- ( mu ) -nitrodicobalt(III) sulphate
C. Octaammine- ( mu ) -nitro- ( mu ) -chlorodicobalt(III) sulphate
D. None of the above
12
576 The coordination of ( P t ) in the complex
( operatorname{ion}left[boldsymbol{P t}(boldsymbol{e n})_{2} boldsymbol{C l}_{2}right]^{2+} ) is:
( A cdot 3 )
B. 4
( c cdot 5 )
D. 6
12
577 Which of the following compound is used
for the treatment of cancer?
A. potassium sulphocyanide
B. Cis-diamine dichloro platinum (II)
C. Trans-dichlorodiammine platinum (II)
( mathbf{D} cdotleft[A gleft(N H_{3}right)_{2}right] N O_{3} )
12
578 Indicate the types of isomerism exhibited by the following complex and
draw the structure of this isomer.
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}left(boldsymbol{N} boldsymbol{O}_{2}right)right]left(boldsymbol{N} boldsymbol{O}_{3}right)_{2} )
12
579 Which alkane, having a molecular weight of ( 86, ) will form only two monobromo alkanes? If the alkane is
( C_{n} H_{m}, ) find ( n ? )
A . 4
B. 5
( c cdot 6 )
( D )
12
580 Which of the following statement(s)
is/are correct?
This question has multiple correct options
A. Primary valency of the central metal of a complex is always satisfied by anions.
B. Secondary valency of the central metal of a complex may be satisfied by either negative ions or neutral molecules.
C . Species which show primary valencies in a complex compound can be precipitated out
D. None of the above
12
581 Which of the following is not correctly
matched?
( begin{array}{clc}text { Complex ion } & text { CFSE } \ text { a } & {left[operatorname{Co}left(N H_{3}right)_{6}right]^{3+}} & 24 D q \ text { b } & {left[operatorname{Cr}left(N H_{3}right)_{6}right]^{3+}} & 12 D q \ text { c } & {left[F e F_{6}right]^{3-}} & 4 D q \ text { d } & {left[F e(C N)_{6}right]^{3-}} & 20 D qend{array} )
12
582 Zeisse’s salt is:
( mathbf{A} cdotleft[P tleft(N H_{3}right)_{2} C_{12}right] )
B ( cdot Kleft[P t C l_{3}left(C_{2} H_{4}right)right] )
( mathbf{C} cdot F eleft(C_{5} H_{5}right)_{2} )
D. None of these
12
583 n-propyl alcohol and isopropyl alcohol are examples of :
A. position isomerism
B. chain isomerism
c. tautomerism
D. geometrical isomerism
12
584 Explain the type hybridisation, magnetic property and geometry for
( left[boldsymbol{N} boldsymbol{i}(boldsymbol{C} boldsymbol{N})_{4}right]^{2-} ) and ( left[boldsymbol{N} boldsymbol{i}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]^{2+} ) using
VB theory.
12
585 Indicate the types of isomerism exhibited by the following complex and
draw the structure of this isomer.
( boldsymbol{K}left[boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{2}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{2}right. )
12
586 Taking an example of an ambidentate ligand, explain why it is called as ambidentate ligand. 12
587 The complex ion in the compound
( boldsymbol{C s}left[boldsymbol{M n F}_{4}left(boldsymbol{H}_{2} boldsymbol{O}right)_{2}right] ) is octahedral and
high spin. The name of the compound is
A cdot cesiumdiaquatetrafluoridomanganese ( (I I I) )
B . cesiumdiaquatetrafluoridomanganate ( (I I I) )
C . cesiumdiaquatetrafluoridomanganese (IV)
D. cesiumdiaquatetrafluoridomanganate (IV)
12
588 Which of the following is not a draw back
of Werner’s theory?
A. does not explain the valency of metal ions in the complex
B. does not give any explanation for the colour of complex compounds
C. does not explain the magnetic behaviour of complex compounds
D. does not correlate electronic configuration of the metal with the formation of complex
12
589 The formula of Sodium Nitroprusside is
A ( cdot max _{4}left[operatorname{Fe}(C N)_{5} N O Sright] )
в. ( operatorname{Na}_{2}left[mathrm{Fe}(mathrm{CN})_{5} mathrm{NO}right] )
( c )
( operatorname{NaFe}left[operatorname{Fe}(C N)_{6}right] )
D ( cdot operatorname{Na}_{2}left[operatorname{Fe}(C N)_{6} N O_{2}right] )
12
590 Which of the following will give ( boldsymbol{F} boldsymbol{e}^{boldsymbol{3}+} ) ions in the solution?
A ( cdotleft[F e(C N)_{6}right]^{3-} )
B . ( left[F e(C N)_{6}right]^{4-} )
c. ( N H_{4}left(S O_{4}right)_{2} cdot F e S O_{4} cdot 6 H_{2} O )
D. ( F e_{2}left(S O_{4}right)_{3} )
12
591 Wilkinson’s catalyst ( left[R hleft(P h_{3} Pright)_{3} C lright] ) is
used for:
A. hydrogenation of oils
B. hydrogenation of alkynes
c. hydrogenation of alkenes
D. polymerisation of alkenes
12
592 The pH of a solution of ( boldsymbol{H}_{2} boldsymbol{O}_{2} ) is 6.0
Some chloride gas is bubbled into this solution. Which of the following is correct?
A. The pH of the resultant solution is less than 6.0 and ( 0 x )
B. The pH of the resultant solution is less than 8.0
c. ( C l O_{2} ) will be formed in the resultant solution
D. None of these
12
593 Which compound is formed when
excess of ( K C N ) is added to an aqueous
solution of copper sulphate?
( mathbf{A} cdot C u(C N)_{2} )
в. ( K_{2}left[C u(C N)_{2}right] )
c. ( Kleft[C u(C N)_{2}right] )
D. ( K_{3}left[C u(C N)_{4}right] )
12
594 Trisilylamine ( left[ddot{boldsymbol{N}}left(boldsymbol{S} boldsymbol{i} boldsymbol{H}_{3}right)_{3}right] ) has ( mathbf{a} )
A. planer geometry
B. tetrahedral geometry
c. pyramidal geometry
D. none of these
12
595 Due to the presence of nambidentate ligands coordination compounds show isomerism. Palladium complexes of the
type ( left[boldsymbol{P} boldsymbol{d}left(boldsymbol{C}_{6} boldsymbol{H}_{5}right)_{2}left(boldsymbol{N} boldsymbol{O}_{2}right)_{2}right] ) and
( left[boldsymbol{P d}left(boldsymbol{C}_{6} boldsymbol{H}_{5}right)_{2}(boldsymbol{O} boldsymbol{N} boldsymbol{O})_{2}right] ) are?
A. Linkage isomers
B. Coordination isomers
c. lonisation isomers
D. Geometrical isomers
12
596 ( mathbf{N} i(p y)_{4}left(C l O_{4}right)_{2} ) exists in a yellow
diamagnetic form containing the cation
( left[N i(p y)_{4}right]^{2+} ) and ( C l O_{4}^{-} ) icons, and in a blue paramagnetic form containing
( operatorname{trans}left[N i(p y)_{4}left(C l O_{4}right)_{2}right] ) molecules in
which oxygen atoms form the ( mathrm{Cl} mathrm{O}_{4} )
icons completed the octahedral coordination of the metal ion. The
hybridisation of nickel in the yellow ( & ) blue complexes respectively are:
A ( cdot s p^{3} ) and ( d^{2} s p^{3} )
B. ( d s p^{2} ) and ( d^{2} s p^{3} )
C ( cdot d s p^{2} ) and ( s p^{3} d^{2} )
D. ( s p^{3} ) and ( s p^{3} d^{2} )
12
597 The complex ion ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{+2} ) is
readily oxidized to ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{+3} )
A . True
B. False
12
598 The formula of
dichlorobis(urea)copper(II) is:
A ( cdotleft[C uleft(O=Cleft(N H_{2}right)_{2}right)_{2}right] C l_{2} )
в. ( left[C u C l_{2}left(O=Cleft(N H_{2}right)_{2}right)_{2}right] )
c. ( left[C uleft(O=Cleft(N H_{2}right)_{2}right)right] C l )
D ( cdotleft[C u C l_{2}left(O=Cleft(N H_{2}right)_{2}right) H_{2}right] )
12
599 In the isoelectronic series of metal
carbonyl, the ( C 0 ) bond strength is expected to increase in the order.
( A )
( left[M n(C O)_{6}right]^{+}<left[C r(C O)_{6}right]<left[V(C O)_{6}right] )
( ^{mathrm{B}}left[V(C O)_{6}right]^{-}<left[C r(C O)_{6}right]<left[M n(C O)_{6}right]^{+} )
c. ( left[V(C O)_{6}right]^{-}<left[M n(C O)_{6}right]^{+}<left[C r(C O)_{6}right] )
D. ( left[C r(C O)_{6}right]<left[M n(C O)_{6}right]^{+}<left[V(C O)_{6}right] )
12
600 Select the correct I.U.P.A.C name for
( left[boldsymbol{P} boldsymbol{t}left(boldsymbol{C}_{5} boldsymbol{H}_{5} boldsymbol{N}right)_{4}right]left[boldsymbol{P} boldsymbol{t} boldsymbol{C l}_{4}right] )
A. Tetrapyridineplatinate
(II) tetrachloridoplatinate
B. Tetrapyridineplatinum
(II) tetrachloridoplatinum
C. Tetrapyridineplatinate
(II) tetrachloridoplatinum
D. Tetrapyridineplatinum
(II) tetrachloridoplatinate
12
601 The ( left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right]^{3-} ) complex ion:
A. exhibits planar geometry
B. is diamagnetic
c. should be very stable
D. has 2 unpaired electrons
12
602 According to Lewis, the ligands are:
A. acidic in nature
B. basic in nature
c. neither acidic nor basic
D. some are acidic and others are basic
12
603 State a reason for each of the following
situations :

CO is a stronger complexing reagent
than ( boldsymbol{N} boldsymbol{H}_{3} )

12
604 When white ppt. of ( A g_{2} C O_{3} ) is dissolved
in ( N H_{3} ) solution, then compound ( X ) is
formed

Find the value of magnetic moment of
( mathbf{X} )
A. 0
B. 2
( c cdot 1 )
D.

12
605 The complex ( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]^{2+} ) has
. whrure :
A. square planer
B. tetrahedral
c. pyramidal
D. pentagonal
12
606 Developed photography film is due to:
A. ( A g B r )
в. ( left[A gleft(S_{2} O_{3}right)_{2}right]^{3} )
( c . A g )
D. ( A g_{2} O )
12
607 The above given figure is a structure of:
This question has multiple correct options
A. diethyl ether
B. dimethyl ether
( c . ) ethoxy ethane
D. methoxy methane
12
608 Octahedral complex of ( mathrm{Ni}(|) ) must be :
A. inner orbital
B. outer orbital
C. inner or outer orbital depending upon the strong or weak field ligand
D. none of these
12
609 25 A coordination compound CrCl, 4H,0 precipitates silver chloride when
treated with silver nitrate. The molar conductance of its solution
corresponds to a total of two ions. Write structural formula of the
compound and name it.
12
610 The dihedral angle between the
hydrogen atoms of two methyl groups in staggered of ethane is :
( A cdot 120^{circ} )
B . ( 180^{circ} )
( c cdot 90^{circ} )
D. ( 60^{circ} )
12
611 How many carbon atoms are there in
the simplest alkane capable of exhibiting chain isomerism?
A. three
B. five
c. four
D. six
12
612 0.17 Which of the following options are correct for [Fe(CN)6]3- complex?
(a) dsp hybridisation
(b) spºd hybridisation
(c) Paramagnetic
(d) Diamagnetic
12
613 Which of the following is tetrahedral paramagnetic complex?
A ( cdot K_{2}left[P t C l_{4}right] )
в. ( K_{2}left[M n C l_{4}right] )
c. ( _{K_{2}}left[Z n C l_{4}right] )
D ( cdot K_{2}left[H g l_{4}right] )
12
614 According to Lewis the ligands are:
A. acidic in nature
B. basic in nature
C. neither acidic nor basic
D. some are acidic and others are basic
12
615 Question 32. What will be the correct order for the wavelengths of
absorption in the visible region for the following:
[Ni(NO2).] , [Ni(NH3)612+, [Ni(H20)612+
(1) CFSE is higher for the complex having strong field ligand.
(ii) CFSE (crystal field splitting energy) varies inversely with wavelength.
12
616 The number of structural isomers for
( C_{6} H_{14} ) is :
( A cdot 4 )
B. 5
( c cdot 6 )
D.
12
617 What type of isomers are the following?
( left[(boldsymbol{C O})_{5} boldsymbol{M} boldsymbol{n} boldsymbol{S} boldsymbol{C} boldsymbol{N}right] boldsymbol{a} boldsymbol{n} boldsymbol{d}left[(boldsymbol{C} boldsymbol{O})_{5} boldsymbol{M} boldsymbol{n} boldsymbol{N} boldsymbol{C} boldsymbol{S}right] )
A. coordination
B. Linkage
c. solvate
D. lonization
12
618 In the formula of brown ring complex
( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{5}(boldsymbol{N O})right] boldsymbol{S} boldsymbol{O}_{4}, ) the magnetic
moment is 3.87 B.M. The oxidation state
of Fe and number of unpaired electrons present respectively are :
( mathbf{A} cdot 1+, 3 )
в. ( 2+, 3 )
c. ( 3+, 3 )
D. ( 3+, 5 )
12
619 Which of the following options are
correct regarding the complex
( left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right]^{boldsymbol{3}-} operatorname{and}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right]^{boldsymbol{4}-} )
This question has multiple correct options
A. number of unpaired electrons are 1 and 0 respectively.
B. number of unpaired electrons are 0 and 1 respectively.
C. magnetic moment are ( sqrt{3} B M ) and 0 respectively.
D. magnetic moment are 0 and ( sqrt{3} B M ) respectively.
12
620 Select most stable complex:
A ( cdotleft[operatorname{Co}left(H_{2} Oright)_{6}right]^{3} )
B. ( left[operatorname{Co}left(N H_{3}right)_{2}(e n)_{2}right]^{+3} )
( mathbf{c} cdotleft[C o(e n)_{3}right]^{+3} )
D. ( left[operatorname{Co}left(N H_{3}right)_{4}(e n)right]^{+3} )
12
621 The IUPAC name of the Wilkinsons
catalyst ( left[R h C lleft(P P h_{3}right)_{3}right] ) is
A. Chlorotris (triphenylphopshine) rhodium (I)
B. Chlorotris (triphenylphosphine) rhodium (IV)
C. Chlorotris (triphenylphosphine) rhodium (0)
D. Chlotrotris (triphenylphosphine) rhodium (VI)
12
622 Which one of the following is an inner orbital complex as well as diamagnetic in behaviour?
A ( cdotleft[operatorname{Zn}left(N H_{3}right)_{6}right]^{2} )
в. ( left[Z ileft(N H_{3}right)_{6}right]^{2+} )
( mathbf{c} cdotleft[C rleft(N H_{3}right)_{6}right]^{3} )
D ( cdotleft[operatorname{Co}left(N H_{3}right)_{6}right]^{3+} )
12
623 Choose the group showing position isomerism:
(b)
( (c) C H_{2}=C H-C H_{2} O H )
(d)
( (mathbf{e}) )
( A cdot b ) and ( e )
B. b and c
( mathbf{C} cdot ) a and ( d )
D. ( a, b, c ) and ( e )
12
624 Property of carbon gives rise to the structural isomerism of organic compounds is:
A. catenation
B. multiple bond formation
c. functional group
D. Both A and B
12
625 Which of the following shows configurational isomerism?
A. Diethyldimethylammonium iodide
B. Dimethylpropylamine
c. Methylethylpropyl ammonium bromide
D. None of these
12
626 If a compound has “n” asymmetric carbon atoms with different terminal groups, the number of stereoisomers is
given by the formula:
A ( cdotleft(frac{1}{2}right)^{n} )
B . ( 2^{n} )
( c cdot 2 sqrt{n} )
D. ( sqrt{2} n )
12
627 Write the hybridisation and number of unpaired electrons in the complex
( left[boldsymbol{C o F}_{6}right]^{3-} . ) (Atomic No. of ( mathrm{Co}=mathbf{2 7} ) ).
12
628 What is the IUPAC name of
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}left(boldsymbol{O} boldsymbol{H}_{2}right) boldsymbol{I}right] boldsymbol{S} boldsymbol{O}_{4} ? )
A. Tetraammineaquaiodocobalt(III) sulphate
B. Tetraammineaquaiodocobalt(II) sulphate
C. Tetraammineaquaiodocobaltate(III) sulphate
D. None of these
12
629 Diethyl ether and n-propyl methyl ether
are:
A. metamers
B. chain isomerism
c. geometrical isomerism
D. position isomerism
12
630 (i) Write down the IUPAC name of the
following complex:
( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2} boldsymbol{C l}_{2}(boldsymbol{e n})right] boldsymbol{C l} )
(en=ethylenediamine)
(ii) Write the formula for the following complex:
Pentaamminentrito-o-cobalt (III)
12
631 With reference to Valence Bond Theory in coordination compounds which of the following statements is/are, correct?
I. VBT does not explain the colour exhibited by co-ordination compounds.
II. VBT explains and gives a quantitative interpretation of magnetic data.
III. VBT does not distinguish between weak field ligand and strong field ligand.
A . ।, ॥, ॥
B. ।, ॥
c. ॥, ॥
D. ।, II
12
632 The possible structural isomers of an alkane are nine. The alkane is:
A. ( C_{4} H_{10} )
B. ( C_{3} H_{8} )
( mathbf{c} cdot C_{6} H_{14} )
D. ( C_{7} H_{16} )
12
633 In the complex ( C o C l_{3} cdot 5 N H_{3}, ) one ( C l^{-} )
ion satisfies primary and secondary valencies of cobalt(III).
A . True
B. False
12
634 Which of the following statements are
correct?
This question has multiple correct options
A. A reaction in which different stereisomers produce different products or act at different rates is called stereospecific reaction
B. A reaction in which a given substrate produces diastereoisomeric products in different amounts and where one diastereomer predominates very much over the other is called stereoselective reaction
C. If the replacement of one group at an a chiral centre by a new substituent generates a chiral centre, the original molecule is said to be enantiopic
D. The E and Z system of naming geometrical isomers is based on the CIP sequence rule
12
635 Q.37 Match the coordination compounds given in Column 1 with the central
metal atoms given in Column II and assign the correct code.
Column 1
Column Il
(Coordination compound) (Central metal atom)
A Chlorophyll
1. Rhodium
B. Blood pigment
2 Cobalt
C Wilkinson catalyst
3. Magnesium
D. Vitamin B2
4. Iron
Codes
A B C D
A B C D
(a) 3 4 1 2
(b) 3 4 5 1
(c) 4 3 2 1
(d) 3 4 1 2
12
636 Which are correct statements?
This question has multiple correct options
( mathbf{A} cdotleft[A gleft(N H_{3}right)_{2}right]^{+} ) is linear with sp hybridised ( A g^{+} ) ion.
B. ( N i C l_{4}^{2-}, V O_{4}^{3-} ) have tetrahedral geometry.
( mathbf{C} cdotleft[C uleft(N H_{3}right)_{4}right]^{2+},left[P tleft(N H_{3}right)_{4}right]^{2+} ) and ( left[N i(C N)_{4}right]^{2-} ) have
( d s p^{2} ) hybridisation of the metal ion.
D. ( F e(C O)_{5} ) have bipyramidal structure with ( d s p^{3} ) hybridised iron.
12
637 ( e-delta )
( x-2 )
12
638 IUPAC name of ( boldsymbol{H}_{2}left[boldsymbol{P t} C l_{6}right] ) is:
A. hydrogen hexachloroplatinate (IV)
B. dihydrogen hexachloroplatinate (IV)
c. hydrogen hexachloroplatinic (IV) acid
D. hexachloroplatinic (IV) acid
12
639 Among the following complexes, the diamagnetic complexes are
( (boldsymbol{K}): boldsymbol{K}_{3}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right] )
( (L):left[operatorname{Co}left(N H_{3}right)_{6}right] C l_{3} )
( (M): N a_{3}left[C o(text {oxalate})_{3}right] )
( (N):left[N ileft(H_{2} Oright)_{6}right] C l_{2} )
( (boldsymbol{O}): boldsymbol{K}_{2}left[boldsymbol{P} boldsymbol{t}(boldsymbol{C} boldsymbol{N})_{4}right. )
( (boldsymbol{P}):left[boldsymbol{Z n}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]left(boldsymbol{N} boldsymbol{O}_{3}right)_{2} )
A. ( K, L, M, N )
в. ( K, M, O, P )
c. ( L, M, O, P )
D. ( L, M, N, O )
12
640 Two isomers of a compound
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{3} boldsymbol{C l}_{3}right]left(boldsymbol{M} boldsymbol{A}_{3} boldsymbol{B}_{3} text { type }right) ) are
shown in the figures. The isomers can
be classified as:
( (mathbf{i}) )
A. (i) fac-isomers
(ii) mer-isomer
B. (i) optical-isomer
(ii) trans-isomer
C. (i) mer-isomer
(ii) fac-isomer
D. (i) trans-isomer
(ii) cis-isomer.
12
641 What is meant by unidentate, didentate and ambidentate ligands? Give two examples for each. 12
642 Few isomers are given below. The correct statement regarding them are:
(i) ( left[boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right] boldsymbol{C l}_{3} )
(ii) ( left[boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{5} boldsymbol{C l}right] boldsymbol{C l}_{2} cdot boldsymbol{H}_{2} boldsymbol{O} )
( left(text { iii) }left[boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{4} boldsymbol{C l}_{2}right] boldsymbol{C l} . boldsymbol{2} boldsymbol{H}_{2} boldsymbol{O}right. )
A. (i),(ii) and (iii) are hydrate isomers
B. (i),(ii) and (iii) are coordination isomers.
( c . ) (i),(ii) and (iii) are ionisation isomers
D. (i) and (ii) are stereo-isomers
12
643 Give the type of isomerism exhibited by each of the following pairs 1,1 Dibromoethane and 1,2
dibromoethane?
A . Positional
B. Functional
c. Ring chain
D. Metamerism
12
644 The species that can have a transisomer is:
( (e n=text { ethane }-1,2-text { diamine, ox }= ) oxalate)
A ( cdotleft(P t(e n) C l_{2}right] )
( mathbf{B} cdotleft[C r(e n)_{2}(o x)right]^{+} )
c. ( left[left[Z n(e n) C l_{2}right]right. )
D. ( left[P t(e n)_{2} C l_{2}right]^{2+} )
12
645 Which of the following ( 0.1 M ) complex compound solutions will have the minimum electrical conductivity?
A. Hexammine platinum (IV) chloride
B. chloropenta ammine platinum (IV) chloride
c. Dichloro tetrammine platinum (IV) chloride
D. Trichloro tetrammine platinum (IV) chloride
12
646 Which of the following species combine
to form ferrocene?
A ( cdot F e^{3+} ) and two molecules of cyclopentadiene
B. Fe and two ( C_{5} H_{6} ) molecules
C ( cdot F e^{2+} ) ion and two cyclopentadienyl ions
D. ( F e^{2+} ) and two ( C_{5} H_{6} ) molecules.
12
647 The colour of blood is red due to the
presence of
A. magnesium
B. cytoglobin
c. haemoglobin
D. all of these
12
648 The functional isomer of
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{O H} )
( mathbf{A} cdot C H_{3}-C H-C H_{3} )
( _{O H} )
в. ( C H_{3} C O C H_{3} )
c. ( C H_{3} O C H_{3} )
D. ( C H_{3} O C H_{2} C H_{3} )
12
649 The IUPAC name of
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{mathbf{3}}right)_{boldsymbol{6}}right]left[boldsymbol{C r}left(boldsymbol{C}_{boldsymbol{2}} boldsymbol{O}_{boldsymbol{4}}right)_{boldsymbol{3}}right] )
is
A. Hexaamminecobalt (III) tris (Oxalato) chromate (III)
B. Hexaamminecobalt (III) tris (Oxalato) chromium (III)
C. Hexaamminecobalt (II) tris (Oxalato) chromium (III)
D. Hexaamminecobalt (III) trisoxalatochromate (III)
12
650 IUPAC name of ( left[P tleft(N H_{3}right)_{3} B rleft(N O_{2}right) C lright] C l )
is:
A. Triamminechlorobromonitroplatinum (IV) chloride
B. Triamminebromonitrochloroplatinum (IV) chloride
C. Triamminebromochloronitroplatinum (IV) chloride
D. Triamminenitrochlorobromoplatinum
(III) chloride
12
651 Which of the following complex ion has least stability?
A ( cdotleft[operatorname{Co}left(N H_{2}right)_{6}right]^{2+} )
в. ( left[operatorname{Co}(C N)_{6}right]^{3-} )
c. ( left[operatorname{Co}left(N H_{3}right)_{6}right]^{3} )
D ( cdotleft[C o(C O)_{6}right]^{3+} )
12
652 The formula of prussian blue is:
( mathbf{A} cdot N a_{4}left[F e(C N)_{6}right] )
В. ( operatorname{Fe}(C N)_{2} )
c. ( operatorname{Fe}(C N S)_{3} )
D. ( F e_{4}left[F e(C N)_{6}right]_{3} )
12
653 According to Werner’s theory the primary valency and secondary valency in complex ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{4} mathrm{Cl}_{2}right] mathrm{Cl} ) is
respectively:
( A cdot 3,3 )
B. 3,6
( c cdot 6,3 )
( D cdot 4,2 )
12
654 How many structural isomers are possible for a compound with molecular
formula ( C_{3} H_{7} C l ) ?
( A cdot 2 )
B. 7
( c .5 )
D.
12
655 Which of the following complex ions can exhibit linkage isomerism?
( mathbf{A} cdotleft[A gleft(N H_{3}right)_{2}right]^{+} )
B . ( left[operatorname{Co}left(N H_{3}right)_{5} N O_{2}right]^{2+} )
( mathbf{c} cdotleft[P t(e n) C l_{2}right) )
D ( cdotleft[operatorname{Co}left(N H_{3}right)_{5} C lright]^{2+} )
12
656 ( 50 mathrm{ml} ) of ( 0.2 mathrm{M} ) solution of a compound
with empirical formula ( boldsymbol{C o C l}_{3} cdot boldsymbol{4} boldsymbol{N} boldsymbol{H}_{3} )
on treatment with excess of
( A g N O_{3}(a q) ) yields 1.435 g of ( A g C l )
(white ppt).
Ammonia is not removed by treatment
with concentrated ( boldsymbol{H}_{2} boldsymbol{S} mathbf{0}_{mathbf{4}} )
The formula of the compound is:
( mathbf{A} cdot operatorname{Co}left(N H_{3}right)_{4} C l_{3} )
B. ( left[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right] C l )
( mathbf{c} cdotleft[operatorname{Co}left(N H_{3}right)_{4} C l_{3}right. )
D. ( left[operatorname{CoCl}_{3}left(N H_{3}right)right] N H_{3} )
12
657 The IUPAC name of ( boldsymbol{K}_{mathbf{2}}left[boldsymbol{N} boldsymbol{i}(boldsymbol{C} boldsymbol{N})_{4}right] ) is:
A. potassium tetracyanonickelate (II)
B. potassium tetracyanato nickelate (III)
c. potassium tetracyanatonickel (II)
D. potassium tetracyanonickel (III)
12
658 Mention the specific type of isomerism exhibited by each of the following pairs 12
659 An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave ( C, 38.71 % ) and ( mathrm{H}, 9.67 % ) The empirical formula of the compound would be?
A. ( C H_{4} O )
в. ( C H_{3} O )
( mathrm{c} cdot mathrm{CH}_{2} mathrm{O} )
D. ( C H O )
12
660 Question 30.
The oxidation number of cobalt in K[Co(CO),]is
(b) +3
(c)-1
(d)-3
(a)+1
12
661 Coordinate bond is formed in:
A . ( N a C l )
в. ( N H_{4} C l )
( c cdot C l_{2} )
D. ( B C l_{3} )
12
662 What is meant by complex compound?
Describe the main points of Werner’s
theory.
12
663 Write the IUPAC name of the compound
is:
12
664 On the basis of Werner’s theory explain,
why cobalt amine complex,
( mathrm{CoCl}_{3} 4 mathrm{NH}_{3} ) when treated with
( A g N O_{3} ) solution precipitates only one
( C l^{-} ) ion even though there are three
( C l^{-} ) ions?
12
665 What is the IUPAC name of ferrocene?
A. bis (cyclopentadienyl) iron
B. dicyclopentadienyl iron
c. discyclopentadienyl iron
D. bis (cyclopentyI) iron
12
666 For 1 molal solution of each compound minimum freezing point will be
assuming complete ionisation in each
case:
( mathbf{A} cdotleft[F eleft(left(H_{2} Oright)_{6}right] C l_{3}right. )
B. ( mathrm{Fe}left(mathrm{H}_{2} mathrm{O}right)_{5} mathrm{Cl} ) l ( mathrm{Cl}_{2} ). ( mathrm{H}_{2} mathrm{O} )
c. ( left.F eleft(H_{2} Oright)_{4} C l_{2}right] C l .2 H_{2} O )
D. ( operatorname{Fe}left(H_{2} Oright)_{3} C l_{3} ) ]. ( H_{2} ) O
12
667 Compound ( left[boldsymbol{C o}(boldsymbol{C N})_{2}(boldsymbol{e n})_{2}right] boldsymbol{C l} ) can
show:
A. only optical isomerism
B. only geometrical and optical isomerism
c. only structural isomerism
D. structural, geometrical and optical isomerism
12
668 The primary valence of the metal ion is satisfied by :
A. neutral molecules
B. positive ions
c. negative ions
D. all
12
669 The functional isomer of ethanenitrile
is:
A. ethyl carbylamine
B. methanenitrile
c. methyl isocyanide
D. propanenitrile
12
670 What is the coordination number of
( C s^{+} ) and ( C l^{-} ) in ( C s C l ) structure?
12
671 From the stability constants
(hypothetical value) given below,
predict the strongest ligand.
( mathbf{A} )
[
C u^{2+}+4 N H_{3} rightarrowleft[C uleft(N H_{3}right)_{4}right]^{2+}, K=4.5 times 10^{11}
]
( B )
[
C u^{2+}+4 C N^{-} rightarrowleft[C u(C N)_{4}right]^{2-}, K=2.0 times 10^{27}
]
( mathbf{c} )
[
C u^{2+}+2 e n rightarrowleft[C u(e n)_{2}right]^{2+}, K=3.0 times 10^{15}
]
D.
[
C u^{2+}+4 H_{2} O rightarrowleft[C uleft(H_{2} Oright)_{4}right]^{2+}, K=9.5 times 10^{8}
]
12
672 What are monodentate ligands? Write
one example.
12
673 Using IUPAC norms, write the formulae
for the following:
(i) Potassium trioxalatoaluminate (III)
(ii) Dichloridobis (ethane-1,2-diamine) cobalt (III).
12
674 Co-ordination compounds are mostly
formed by:
A. s-block elements
B. p-block elements
c. d-block elements
D. f-block elements
12
675 Draw the structural isomer of
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{N} boldsymbol{O}_{2}right] boldsymbol{C l}_{2} ) and name the type
of isomerism?
12
676 The crystal field splitting energy CFSE ( left(text {In } Delta_{0} text {units}right) ) for ( left[text {Co} F_{6}right]^{3-} ) will be:
A ( .-1.6 Delta_{0} )
в. ( -2.4 Delta_{0} )
( c .-0.4 Delta_{0} )
D. ( +0.6 Delta_{0} )
12
677 What are the geometric shape and the oxidation number of the copper atom, respectively, for the complex ion,
( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}left(boldsymbol{O} boldsymbol{H}_{2}right)_{2}right]^{2+} )
A. Tetrahedral; +2
B. Square planar; – –
c. Linear; +3
D. Octahedral; +2
12
678 Question 16. Draw figure to show the splitting of d-orbitals in
octahedral crystal field.
12
679 State the hybridization and magnetic
property of ( left[boldsymbol{F e}(boldsymbol{C N})_{6}right]^{3-} ) ion according
to the valence bond theory.
12
680 Brown ring complex known as:
( mathbf{A} cdot K_{4}left[F e(C N)_{6}right] )
( mathbf{B} cdotleft[F e(N O)left(H_{2} Oright)_{5}right] S O_{4} )
( left.mathbf{c} cdotleft[F e(N O)_{2}right)left(H_{2} Oright)_{4}right] B r_{2} )
( mathbf{D} cdotleft[F e F_{6}right]^{3-} )
12
681 The correct increasing order of trans-
effect of the following species is:
A ( cdot B r^{-}>C N^{-}>N H_{3}>C_{6} H_{5} )
B . ( C N^{-}>B r^{-}>C_{6} H_{5}^{-}>N H_{3} )
c. ( N H_{3}>C N^{-}>B r^{-}>C_{6} H_{5} )
D. ( C N^{-}>C_{6} H_{5}^{-}>B r^{-}>N H_{3} )
12
682 Silver halides are used in photography because they are –
A. Photosensitive
B. Soluble in hypo solution
c. soluble in ( N H_{4} O H )
D. Insoluble in acids
12
683 4 When 1 mole of CrClz. 61,0 is treated with excess of AgNO3, 3 moles of
AgCl are obtained. The formula of the complex is
(a) [CrC(H20)31-3H2O
(b) [CrCI (H20)4]CI.2H20 de
(c) (CrCl(H2O).]C),H,O
(d) [Cr(H,0)1013
Ane
1 mole of ANO precipitaton and freshloride inn ICI-
12
684 Find the number of ligand(s) which is/are non-classical ligand.
( boldsymbol{C O}, boldsymbol{N O}, boldsymbol{C}_{2} boldsymbol{H}_{4}, boldsymbol{C}_{3} mathrm{H}_{5}^{-}, boldsymbol{H}^{-} )
12
685 The spin-only magnetic moments of ( left[M n(C N)_{6}right]^{4-} ) and ( left[M n B r_{4}right]^{2-} ) in Bohr Magnetons, respectively, are:
A .5 .92 and 5.92
B. 4.89 and 1.73
c. 1.73 and 5.92
D. 1.73 and 1.73
12
686 Structural isomerism and
stereoisomerism should be considered
in answering this question. Compound is reacted with KOH dissolved in
ethanol. Three isomeric alkenes with
molecular formula ( C_{4} H_{8} ) are formed.
What is J?
( mathbf{A} cdot C H_{3}-C H_{2}-C H_{2}-C H_{2}-B r )
B. ( C H_{3}-_{I}^{C H}-C H_{2}-C H_{3} )
( mathbf{c} . C H_{3}-C H-C H_{2}-B r )
( _{C H_{3}} )
D. ( C H_{3} )
( C H_{3}-C-B r )
( _{C H_{3}} )
12
687 2,2′-dinitro-6,6′-disulfonic acid biphenyl
is non-resolvable. If true enter 1 and if
false enter 0
12
688 Select the correct I.U.P.A.C name for
( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{P t} boldsymbol{C l}_{4}right]: )
(II) tetrachloridoplatinum (II)
A. Tetraamminecopper
B. Tetraamminecopper
(II) tetrachloridoplatinum (IV)
c. Tetraamminecopper(II) tetrachloridoplatinate (II)
D. Tetraamminecuprate(II) tetrachloridoplatinate (II)
12
689 Calcium oxychloride is a :
A . Double salt
B. Acid salt
c. Mixed salt
D. Basic salt
12
690 Select correct statement(s).
This question has multiple correct options
A. Nickel (II) compounds tend to be thermodynamically more stable than platinum (II)
B. Platinum (IV) compounds are relatively more stable than nickel (IV) compounds
( mathbf{C} cdot K_{2} P t^{I V} C l_{6} ) exists
D. ( K_{2} N i^{I V} C l_{6} ) exists
12
691 Explain ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{3+} ) is an inner
orbital complex whereas ( left[N ileft(N H_{3}right)_{6}right]^{2+} ) is an outer orbital complex.
12
692 The IUPAC name of ( boldsymbol{K}_{3} boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6} ) is:
A. potassium hexacyanoferrate(II)
B. potassium hexacyanoferrate(III)
c. potassium hexacyanoiron(II)
D. tripotassium hexacyanoiron(II)
12
693 Which of the following coordination compounds would exhibit optica isomerism?
A. Pentamminenitrocobalt (III) iodide
B. Tris-(ethylenediamine) cobalt (III) bromide
c. Trans- dicyanobis (ethylenediamine)
D. Diamminedinitroplatinum (II)
12
694 The maximum possible denticities of a ligand given below towards a common transition and inner-transition metal
ion, respectively, are:
A. 6 and 8
B. 8 and 6
c. 8 and 8
D. 6 and 6
12
695 Which of the following has an optical isomer?
( mathbf{A} cdotleft[mathrm{CO}left(mathrm{NH}_{3}right)_{3} mathrm{Cl}right]^{+} )
B . ( left[mathrm{CO}(mathrm{en})left(mathrm{NH}_{3}right)_{2}right]^{2-} )
( mathbf{c} cdotleft[mathrm{CO}left(mathrm{H}_{2} mathrm{O}right)_{4}(mathrm{en})right]^{3+} )
D ( cdotleft[mathrm{CO}(mathrm{en})_{2}left(mathrm{NH}_{3}right)_{2}right]^{3+} )
12
696 Assertion
In tetrahedral complexes low spin
configurations are rarely observed.
Reason
( Delta_{t}=left(frac{4}{9}right) Delta_{0} )
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
12
697 The correct IUPAC name of the following compound is
( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}(boldsymbol{N} boldsymbol{C S})right]left[boldsymbol{Z n C l}_{4}right] )
A. pentaammine isothiocyanato chromium(III) tetrachlorozincate(II)
B. pentammine isothiocyanate zinc chloridechromate(III)
c. pentaammine isothiocyanato chromate(II)
D. isothiocyanato pentaammine chromium(II) zinc chloride(IV).
12
698 The value of ( X ) in ( F e(C O)_{2}(N O) x, ) is:
( A cdot 3 )
B. 4
( c cdot 2 )
D.
12
699 Mention the following for the complex
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4} boldsymbol{C l}_{2}right] boldsymbol{N} boldsymbol{O}_{2} )
¡) IUPAC name
ii) Central metal ion
iii) Ligand
iv) Charge on the Co-ordination sphere
v) Co-ordination number.
12
700 Assertion
Unreacted ( A g N O_{3} ) of photographic plate is removed by ( N a_{2} S_{2} O_{3} ) (hypo)
Reason
( N a_{3}left[A gleft(S_{2} O_{3}right)_{2}right] ) is soluble complex.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is incorrect but Reason is correct
D. Both Assertion and Reason are incorrect
12
701 The magnetic moment of complex ion is
2.83 BM. The complex ion is :
( mathbf{A} cdotleft[Vleft(H_{2} Oright)_{6}right]^{3+} )
B . ( left[operatorname{Cr}left(text { Ha }_{2} text { O }right)_{6}right]^{3} ) ‘
c. ( left[C u(C N)_{4}right]^{2} )
( mathbf{D} cdotleft[M n C l_{4}right]^{2} )
12
702 The compound having a tetrahedral geometry is :
( A cdotleft[N ileft(C N_{4}right)right]^{2-} )
B. ( left[P dleft(C N_{4}right)right]^{2} )
( c cdotleft[left.P d Cright|_{4}right]^{2-} )
D. [Nicl, ] ( ^{2} )
12
703 Write the structure of
Potassiumhexacyanochromate(III).
( mathbf{A} cdot K_{4}left[mathrm{Fe}left(mathrm{H}_{2} mathrm{O}right)_{6}right] )
( mathbf{B} cdot K_{3}left[C r(C N)_{6}right] )
( mathbf{c} cdot K_{3}left[F e(C N)_{6}right] )
D ( cdot K_{2}left[N i(C N)_{4}right] )
12
704 The molecular formula of diphenyl
methane is ( C_{13} H_{12} . ) How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom?
( A .8 )
B. 7
( c .6 )
( D )
12
705 Which one of the following is an example of coordination isomerism?
A ( cdotleft[operatorname{Co}left(N H_{3}right)_{5} B rright] S O_{4} ) and ( left[C oleft(N H_{3}right)_{5} S O_{4}right] B r )
B . ( left[operatorname{Co}left(N H_{3}right)_{5} N O_{2}right] C l_{2} ) and ( left[C oleft(N H_{3}right)_{5} O N Oright] C l_{2} )
C ( cdotleft[C rleft(H_{2} Oright)_{6}right] C l_{3} ) and ( left[C rleft(H_{2} Oright)_{5} C lright] C l_{2} cdot H_{2} O )
D. ( left[C rleft(N H_{3}right)_{6}right]left[C o(C N)_{6}right] ) and ( left[C oleft(N H_{3}right)_{6}right]left[C r(C N)_{6}right] )
12
706 ( F e S O_{4} ) solution mixed with
( left(N H_{4}right)_{2} S O_{4} ) solution in 1: 1 molar
ratio gives the test of ( F e^{2+} ) ion but
( C u S O_{4} ) solution mixed with aqueous
ammonia in 1: 4 molar ratio does not
give the test of ( C u^{2+} ) ion. Explain why?
12
707 The IUPAC name of the complex
( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2} boldsymbol{C l}left(boldsymbol{N} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{3}right)right] boldsymbol{C l} ) is :
A. Diamminechlorido (methanamine) platinum(II)chloride
B. Bisammine (methanamine) chlorido platinum(II)chloride
c. Diamminechlorido (aminomethane) platinum(II)chloride
D. Diammine (methanamine) chlorido platinum(II)chloride
12
708 ( mathbf{n}left[boldsymbol{F} eleft(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right] boldsymbol{C l}_{3}, operatorname{six} boldsymbol{H}_{2} boldsymbol{O} ) are joined
by primary valency (PV) and three ( C l ) are joined by secondary valency (SV). If true enter 1 , else enter 0 .
12
709 The number of possible open chain (acyclic) isomeric compounds for
molecular formula ( C_{5} H_{10} ) would be
( A cdot 8 )
B. 7
( c cdot 6 )
D. 5
12
710 Why are low spin tetrahedral complexes rarely observed? 12
711 (a) Give the postulates of Werner’s theory of co-ordination compounds.
(b) Differentiate between chemical
reactions and nuclear reactions.
12
712 Isomers of pentane:
A. isopentane
B. n-pentane
c. neopentane
D. all of the above
12
713 Which of the following are not true
about hexagonal close packing?
A. It has a coordination number of 6
B. It has ( 26 % ) empty space
C . It is ( A B C A B C ldots ldots ) type of arrangement
D. It is as closely packed as body centred cubic packing
12
714 The properties of a compound are:
A. Similar to the properties of its constituents
B. Similar to the properties of one of the constituents
C. Different from the properties of its constituents
D. None of these
12
715 0.44 Assertion (A) Complexes of MX, and MX 5L type (X and L are unidentate)
do not show geometrical isomerism.
Reason (R) Geometrical isomerism is not shown by complexes of
coordination number 6.
12
716 What is the use of coordination
compounds for purification of water Medical and catalyst
12
717 The correct IUPAC name of ( M n_{3}(C O)_{12} )
is:
A. mangesedodecylcarbonyl(0)
B. dodecacarbonylmanganate(0)
c. dodecacarbonylmanganic(II)
D. dodecacarbonyltrimanganese(0)
12
718 ( boldsymbol{C}_{5} boldsymbol{H}_{12}+boldsymbol{C l}_{2} stackrel{text {light}}{rightarrow} boldsymbol{C}_{5} boldsymbol{H}_{11} boldsymbol{C l}^{N boldsymbol{a} / text {ether}} )
Only one structure of B is possible. (A),
(B) and (C) are?
( A )
B.
c. both are correct
D. none is correct
12
719 The I.U.P.A.C name for ( left[boldsymbol{F e}(boldsymbol{C N})_{mathbf{6}}right]^{mathbf{3}-} ) ion
is :
A. hexacyanidoferrate(II) ion
B. hexacyanidoferrate(III) ion
C. hexacyanideiron(II) ion
D. iron(III) hexacyanide ion
12
720 What is the Primary and Secondary
Valence of ( boldsymbol{P t} boldsymbol{C l}_{2} cdot boldsymbol{2} boldsymbol{N} boldsymbol{H}_{3} ? )
12
721 A magnetic moment of 1.73 BM will be
shown by which one among the following compounds?
A ( cdotleft[C uleft(N H_{3}right)_{4}right]^{2} )
B ( cdotleft[N i(C N)_{4}right]^{2-} )
c. ( T i C l_{4} )
D. ( left[C o C l_{6}right]^{4} )
12
722 Which of the following isomeric pairs
shows ionization isomerism?
( mathbf{A} cdotleft[operatorname{Co}left(N H_{3}right)_{6}right]left[operatorname{Cr}(C N)_{6}right] ) and ( left[operatorname{Cr}left(N H_{3}right)_{6}right]left[operatorname{Co}(C N)_{6}right] )
( mathbf{B} cdotleft[C rleft(H_{2} Oright)_{6}right] C l_{3} ) and ( left[C rleft(H_{2} Oright)_{5} C lright] C l_{2} H_{2} O )
( mathbf{C} cdotleft[P tleft(N H_{3}right)_{2} C l_{2}right] ) and ( left[P tleft(N H_{3}right)_{4}right]left[P t C l_{4}right] )
( mathbf{D} cdotleft[operatorname{Co}left(N H_{3}right)_{5} B rright] S O_{4} ) and ( left[C oleft(N H_{3}right)_{5} S O_{4}right] B r )
12
723 Write the formula of the following complexes. Pentamine carbonato chromium (III)
chloride
12
724 The chelating ligand used to remove excess of copper and iron in chelate therapy is:
A. D-penicill amine
B. oxalate ion
c. EDTA
D. ethylenediamine
E. dimanyl glyoxime
12
725 Question 6. Using IUPAC norms write the formulae of the following
(i) Tetrahydroxozincate (II)
(ii) Potassium tetrachloridopalladate (11)
(in) Diamminedichlorido platinum (II)
(iv) Potassium tetracyanonickelate (11)
(v) Pentaamminenitro-O-cobalt(III)
(vi) Hexaamminecobalt(III) sulphate
(vii) Potassiumtrioxalato) chromate (III)
(vii) Hexaammineplatinum (IV)
(ix) Tetrabromidocuprate (II)
(x) Pentaamminenitrito-N-cobalt (III)
12
726 Acids and esters having the same number of carbon atoms are:
A. functional isomers
B. tautomers
c. metamers
D. not isomers
12
727 Write IUPAC names of the following coordination compounds.
a) ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right] boldsymbol{C l}_{3} )
b) ( boldsymbol{K}_{3}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right] )
( boldsymbol{c} boldsymbol{K}_{2}left[boldsymbol{P} boldsymbol{d}(boldsymbol{C l})_{4}right. )
d) ( left[boldsymbol{N} boldsymbol{i}(boldsymbol{C} boldsymbol{o})_{4}right] )
12
728 The total number of cyclic isomers
possible for a hydrocarbon with the
molecular formula ( C_{4} H_{6} ) is:
( A cdot O )
B.
( c cdot 2 )
D. 3
( E cdot 4 )
( F .5 )
( G cdot 6 )
( mathrm{H} cdot 7 )
1. 8
J. 9
12
729 Write formula of the following
compound:
(i) dichloridobis (ethylene diamine) cobalt (III) ion.
(ii)
sodiumethylenediaminetetraacetatonic kelate (II)
(iii) hexaammineplatinum (IV) chloride
12
730 Describe the methods by which the presence of complex ions may be detected in solution. 12
731 ( N i(C O)_{4} ) and ( left[N i(C N)_{4}right]^{-2} ) both are
tetrahedral in shape.
A. True
B. False
12
732 The IUPAC name of the Wilkinson’s
catalyst ( left[R h C lleft(P P h_{3}right)_{3}right] ) is :
A. chlorotris (triphenylphosphine) rhodium (I)
B. Chlorotris (triphenylphosphine) rhodium (IV)
c. chlorotris (triphenylphosphine) rhodium (0)
D. chlorotris (triphenylphosphine) rhodium (VI)
12
733 The enolic form of acetone contains:
A. ( 9 sigma ) -bonds, ( 1 pi ) -bond and 2 lone pairs
B. ( 8 sigma ) -bonds, ( 2 pi ) -bond and 2 lone pairs
C. ( 10 sigma ) -bonds, ( 2 pi ) -bond and 1 lone pairs
D. ( 10 sigma ) -bonds, ( 1 pi ) -bond and 2 lone pairs
12
734 The IUPAC name of
( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{5}(boldsymbol{N O})right] boldsymbol{S} boldsymbol{O}_{4} ) is penta
aquanitrosylium iron
(I) sulphate.
A. True
B. False
12
735 (i) What type of isomers are
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{B r}right] boldsymbol{S} boldsymbol{O}_{4} ) and
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{S O}_{4}right] boldsymbol{B r} ? ) Give a chemical
test to distinguish between them.
(ii) Write the structures of optical isomers of the complex ion
( left[boldsymbol{C o}(boldsymbol{e n})_{2} boldsymbol{C l}_{2}right]^{+} )
12
736 2.31 Explain why [Fe(H,0).13+ has magnetic moment value of 5.92 BM whereas
[Fe(CN)6]3- has a value of only 1.74 BM?
12
737 2.35 Name th
Name the type of isomerism when ambidentate ligands are attached to
central metal ion. Give two examples of ambidentate ligands.
having more than one diet
12
738 Point out incorrect stability order.
( mathbf{A} cdotleft[C uleft(N H_{3}right)_{4}right]^{2+}<left[C u(e n)_{2}right]^{2+}<[C u(text {trien})]^{2+} )
( ^{mathbf{B}} cdotleft[F eleft(H_{2} Oright)_{6}right]^{3+}<left[F eleft(N O_{2}right)_{6}right]^{3-}<left[F eleft(N H_{3}right)_{6}right]^{3+} )
( ^{mathbf{C}} cdotleft[operatorname{Co}left(H_{2} Oright)_{6}right]^{3+}<left[R hleft(H_{2} Oright)_{6}right]^{3+}<left[operatorname{Ir}left(H_{2} Oright)_{6}right]^{3+} )
( ^{mathrm{D}} cdotleft[C rleft(N H_{3}right)_{6}right]^{+}<left[C rleft(N H_{3}right)_{6}right]^{2+}<left[C rleft(N H_{3}right)_{6}right]^{3+} )
12
739 What is the number of possible structural isomers for bromopentane?
A.
B. 3
( c cdot 6 )
( D )
12
740 What is the structural formula of
lithium tetrahydrido aluminate?
( mathbf{A} cdot A lleft[L I H_{4}right] )
B. ( A l_{2}left[L i H_{4}right]_{3} )
c. ( L ileft[A l H_{4}right] )
D. ( L ileft[A l H_{4}right]_{2} )
12
741 Coordination number of Ni in
( left[N ileft(C_{2} O_{4}right)_{3}right]^{4-} ) is:
( A cdot 3 )
B. 6
( c cdot 4 )
D.
12
742 An excess of ( mathrm{AgNO}_{3} ) is added to ( 100 mathrm{ml} ) of
a ( 0.1 mathrm{M} ) solution of
dichlorotetraaquachromium (III) chloride
The number of mol of AgCl precipitate would be:
A. 0.001
B. 0.002
c. 0.003
D. 0.01
12
743 Match each set of hybrid orbitals from
LIST-I with complex(es) given in LIST-II.
( begin{array}{ll}text { LIST-I } & text { LIST -II } \ text { P. } d s p^{2} & text { 1. }left[F e F_{6}right]^{4-} \ text { Q. } s p^{3} & text { 2. }left[T ileft(H_{2} Oright)_{3} C l_{3}right] \ text { R. } s p^{3} d^{2} & text { 3. }left[operatorname{Cr}left(N H_{3}right)_{6}right]^{3+} \ text { s.d }^{2} s p^{3} & text { 4. }left[F e C l_{4}right]^{2-} \ & text { 5. }left[N i(C O)_{4}right] \ & text { 6. }left[N i(C N)_{4}right]^{2-}end{array} ) The correct option is:
A. ( P rightarrow 5 ; Q rightarrow 4,6 ; R rightarrow 2,3 ; S rightarrow 1 )
в. ( P rightarrow 5,6 ; Q rightarrow 4 ; R rightarrow 3 ; S rightarrow 1,2 )
c. ( P rightarrow 6 ; Q rightarrow 4,5 ; R rightarrow 1 ; S rightarrow 2, ),
D. ( P rightarrow 4,6 ; Q rightarrow 5,6 ; R rightarrow 1,2 ; S rightarrow 3 )
12
744 Select the correct order of Lewis basic
strength for exocyclic carbonyl oxygen.
( mathbf{A} )
B.
( C )
( D )
12
745 estion 10. Why do compounds having similar geometry have
different magnetic moment?
12
746 IUPAC name of ( boldsymbol{K}_{3}left[boldsymbol{F} boldsymbol{e}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right] ) is:
A. Potassium dioxalatoferrate(1)
B. Potassium dioxalatoferrate(III)
c. Potassium trioxalatoferrate(III)
D. Potassium trioxalatoferate(II)
12
747 Which of the following complexes is(are) paramagnetic? This question has multiple correct options
A ( cdotleft[M nleft(C N_{6}right)right]^{3-} )
B . ( left[C rleft(N H_{3}right)_{6}right]^{3} )
c. ( left[F e(C N)_{6}right]^{4+} )
D. ( left[C o(C N)_{6}right]^{3} )
12
748 LIS
Trans
Question 4. Give evidence that [Co(NH3) CISO and
[Co(NH3)58041CI are ionization isomers.
O lonization isomers give different ions on ionization and thus, give
different reactions with a reagent.
OD Only counter ions give their general tests.
12
749 The number of structural isomers for
( mathbf{C}_{6} mathbf{H}_{14} ) is:
( A cdot 3 )
B. 4
( c cdot 5 )
D. 6
12
750 The number of structural isomers of
( C_{3} H_{5} B r_{3} ) is :
( A cdot 4 )
B. 5
( c cdot 6 )
D. 7
12
751 Draw the structure which shows
synergic bonding interaction in a carbonyl complex?
12
752 Which of the following has flexidentate character?
A. EDTA
B. en
( c cdot P y )
D. ox
12
753 In calcium fluoride, having the fluorite structure, the coordination numbers for
calcium ion ( left(C a^{2+}right) ) and fluoride ion
( left(boldsymbol{F}^{-}right) ) are:
A. 8 and 4
B. 4 and 8
( c cdot 4 ) and 2
D. 6 and 6
12
754 The correct order of magnetic moments (spin only values in (B.M.) among the following is:
[Atomic numbers ( M n=25, F e=26, C o= )
27]
( left.mathbf{A} cdotleft[mathrm{MnCl}_{4}right]^{2-}>left[mathrm{CoCl}_{4}right]^{2-}>mathrm{Fe}(mathrm{CN})_{6}right]^{4} )
B . ( left[mathrm{MnCl}_{4}right]^{2-}>left[mathrm{Fe}(mathrm{CN})_{6}right]^{4-}>left[mathrm{CoCl}_{4}right]^{2} )
C ( cdotleft[mathrm{Fe}(mathrm{CN})_{6}right]^{4-}>left[mathrm{MnCl}_{4}right]^{2-}>left[mathrm{CoCl}_{4}right]^{2} )
D cdot ( left[mathrm{Fe}(mathrm{CN})_{6}right]^{4-}>left[mathrm{CoCl}_{4}right]^{2-}>left[mathrm{MnCl}_{4}right]^{2-} )
12
755 Which one of the following compounds is an isomer of 1-butanol?
A. 2-Methyl-2-butanol
B. 1-Methy|-2-butanol
c. 3-Methyl-2-butanol
D. 2-Methyl-1-propanol
12
756 Tautomerism is exhibited by:
This question has multiple correct options
( mathbf{A} cdotleft(M e_{3} C C Oright)_{3} C H )
B.
( c )
D.
12
757 Using IUPAC norms, write the systematic names of the following.
(i) ( boldsymbol{K}_{mathbf{4}}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right] )
(ii) ( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right] boldsymbol{S} boldsymbol{O}_{4} )
12
758 Question 9. How many geometrical isomers are possible in the
following coordination entities?
(1) [Cr(C204)313-
(ii) [Co(NH3)3 C13]
(1) Geometrical isomerism is exhibited by octahedral complexes of the
type IMABAJIMAB, 1 etc, where A and B are monodentate ligands
(ID IMAA).] type complex does not exhibit geometrical isomerism, the
exhibit optical isomerism.
(iii) When the similar groups oceupy adjacent positions, the isomer is
called fac or cis-form, if not, it is called mer or transform.
Solution
12
759 The compounds ( A ) and ( B ) shows which
isomerism ?
A. Ligand isomerism
B. Coordination position isomerism
c. Position isomerism
D. Ionisation isomerism
12
760 Which of the following is outer orbital complex?
( mathbf{A} cdotleft[C o F_{6}right]^{-3} )
B. ( left[C uleft(H_{2} Oright)_{6}right]^{+2} )
C. ( left[operatorname{Co}left(N H_{3}right)_{6}right]^{+2} )
D. All
12
761 For which of the following parameters
the structural isomers ( mathrm{C}_{2} mathrm{H}_{5} mathrm{OH} ) and
( mathbf{C H}_{3} mathbf{O C H}_{3} ) would be expected to have
the same values?
A. Heat of vaporisation
B. Vapour pressure at the same temperature
c. Boiling points
D. Gaseous densities at the same temperature and pressure
12
762 Select the correct I.U.P.A.C. name for
( left[left(mathrm{NH}_{3}right)_{4} mathrm{CoNH}_{2} mathrm{NO}_{2} mathrm{Co}left(mathrm{NH}_{3}right)_{4}right]left(mathrm{NO}_{3}right)_{4} )
This question has multiple correct options
A. Tetraamminecobalt (III)- ( mu ) -amido- ( mu ) -nitrito-n
tetraamminecoball (III) nitrate
B. ( mu ) -Amido- ( mu ) -nitrito- N-octaamminedicobalt (III)
nitrate
C ( . mu ) – Amido- ( mu ) -nitrito – N-bis(tetraammine)dicobalt
(III) nitrate
D. ( mu ) -Amido- ( mu ) -nitrito-O-octaamminedicobaltate (III)
nitrate
12
763 Write the formulae of the following compounds:
a. Sodium hexanitrito N cobaltate (III)
b. Tetraaquodichlorochromium (III) chloride
12
764 Assertion
Statement ( -1: N F_{3} ) is a weaker ligand
( operatorname{than} Nleft(C H_{3}right)_{3} )
Reason
Statement ( -2: N F_{3} ) ionizes to give ( F^{-} )
ion in aqueous solution.
A. Statement -1 is true, Statement -2 is true and Statement – 2 is correct explanation for Statement –
1.
B. Statement -1 is true, Statement -2 is true and Statement – 2 is NOT the correct explanation for Statement – 1
c. Statement -1 is true, Statement -2 is false
D. Statement -1 is false, Statement -2 is true
12
765 The compound ( N H_{3}-B F_{3} ) can be
easily separated into its compounds because
( mathbf{A} cdot B F_{3} ) is highly reactive
B. ( N H_{3} ) is highly reactive
C. ( B F_{3} ) and ( N H_{3} ) are unstable
D. ( B F_{3} ) and ( N H_{3} ) have their independent existence
12
766 Which of the following shows maximum number of isomers?
( mathbf{A} cdotleft[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right] )
B . ( left[N i(e n)left(N H_{3}right)_{4}right]^{2+} )
c. ( left[N ileft(C_{2} O_{4}right)(e n)_{2}right]^{2} )
D. ( left[C r(S C N)_{2}left(N H_{3}right)_{4}right]^{+} )
12
767 The IUPAC name of the complex
( left[(boldsymbol{C O})_{3} boldsymbol{F e}(boldsymbol{C O})_{3} boldsymbol{F e}(boldsymbol{C O})_{3}right] ) is:
A. nonacarbonyldiiron (0)
B. tricarbonyliron (0)-m-tricarbonyl iron (0)
c. hexacarbonyliron (0)-m-tricarbonyl iron (0)
D. tri- ( mu ) -carbonylbis(tricarbonyliron (0))
12
768 Assertion
( B F_{3} ) is a weaker Lewis acid than ( B C l_{3} )
Reason

The planar ( B F_{3} ) molecule is stabilised
to a greater extent than ( B C l_{3} ) by ( B-X )
( pi ) -bonding.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct

12
769 Write any two postulates of Werner’s theory of coordination compounds. 12
770 Which of the following will give maximum number of isomers?
A. ( left[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right] )
в. ( left[N i(e n)left(N H_{3}right)_{4}right]^{2+} )
( mathbf{c} cdot_{left[N ileft(C_{2} O_{4}right)(e n)_{2}right]} )
D. ( left[C r(S C N)_{2}left(N H_{3}right)_{4}right]^{2+} )
12
771 Select the correct statement:
This question has multiple correct options
A. Chelation effect is maximum for five and six
membered rings
B. Greater the charge on the central metal cation, greater the value of ( Delta(mathrm{CFSE}) )
C. In complex ion ( left[mathrm{CoF}_{6}right]^{3-}, F^{-} ) is a weak field ligand, so that ( Delta_{text {oct}}<P ) (Pairing energy) and it is low spin
complex.
D. ( left[operatorname{CoCl}_{2}left(N H_{3}right)_{2}(e n)right]^{oplus} ) complex ion will have four different isomers.
12
772 Select the correct I.U.P.A.C. name for the
following complex:
This question has multiple correct options
A. di bromidoplatinum(II)bis- – ( mu ) -(dimethylthioether)
dibromidoplatinum(II)
B. bisf ( mu ) (dimethylthioether)dibromidoplatinum(II))
C. bis- ( mu ) -dimethylthioethertetrabromidodiplatinum(II)
D. bis-f.L-dimethylthioethertetrabromidodiplatinate(II)
12
773 ( left[N i(C O)_{4}right]>left[C o(C O)_{4}right]^{-}>left[F e(C O)_{4}right]^{2-} )
is the correct order with respect to M-C ( pi )
bond. Where ( mathrm{M}=mathrm{Ni}, mathrm{Fe} ), and ( mathrm{Co} )
A . True
B. False
12
774 If the thio-cyanide ion is added to potash-ferric alum then red colour appears. This colour is due to the
formation of:
A. ( K S C N )
в. ( F e(S C N)_{3} )
( mathbf{c} cdot operatorname{Fe}(S C N)_{2} )
D. ( F e(S C N) )
12
775 An example of double salt is:
A. potash alum
B. hypo
c. ( K_{4}left[F e(C N)_{6}right. )
D. bleaching powder
12
776 The compound used in the treatment of lead poisoning is :
A. EDTA
B. Cis-platin
c. D-penicillamine
D. desferrioxime B
12
777 Which of the ligands can show linkage
isomerism?
( mathbf{A} cdot C N S )
в. ( N O_{2} )
c. ( C N )
D. All of these
12
778 Primary and secondary valency of platinum in the complex ( left[boldsymbol{P t}(boldsymbol{e n})_{2} boldsymbol{C l}_{2}right] )
are:
This question has multiple correct options
A ( cdot 4,6 )
в. 2,6
c. 4,4
D. 2,4
12
779 Which of the following complex ion is expected to absorb light in the visible
region?
( mathbf{A} cdotleft[T i(e n)_{3}right]^{4+} )
B ( cdotleft[S cleft(N H_{3}right)_{4}left(H_{2} Oright)_{2}right]^{3+} )
c. ( left[C r O_{4}right]^{2} )
D cdot ( left[Z n(C N)_{2}right]^{2} )
12
780 Assertion
The ( d_{c-o} ) in bridging carbonyl group is Ionger than that of terminal carbonyl group.
Reason
With an increase in the extent of
synergic bonding, the ( C-O ) bond
length increases.
Read the above assertion and reason
and choose the correct option regarding
¡t.
A. Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-
B. Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation fo statement-
c. statement-1 is true, statement-2 is false
D. statement-1 is false, statement-2 is true
12
781 Which of the following complex can not exhibit geometrical isomerism:
( mathbf{A} cdotleft[P tleft(N H_{3}right)_{2} C l N O_{2}right] )
B・ ( quadleft[P t(g l y)_{2}right] )
( mathbf{c} cdotleft[C u(e n)_{2}right]^{+} )
D. ( left[P tleft(H_{2} Oright)left(N H_{3}right) B r C lright. )
12
782 matchings?
This question has multiple correct options
A. Metamers
B. Functional isomers
glucose fructose
C. Tautomers
( D )
Ethanol (Alcohol)
Metamers
12
783 The maximum number of
stereoisomers possible for the ion ( [stackrel{I V}{left.P dleft(N H_{3}right)_{2}left(H_{2} Oright)_{2} B r_{2}right]^{2+}} ) is
12
784 Which of the following statement(s) is/are correct?
This question has multiple correct options
A. In metal carbonyl complexes ( d_{C-} o ) increases compared to that in ( C O ) molecule
( B )
The pair of compounds ( left[mathrm{Cr}left(mathrm{H}_{2} mathrm{O}right)_{6}right] mathrm{Cl}_{3} ) and
( left[mathrm{CrCl}left(mathrm{H}_{2} mathrm{O}right)_{4}right] 2 mathrm{H}_{2} mathrm{O} ) show hydrate isomerism
C ( quad A l_{2}left(C H_{3}right)_{6} ) is a dimeric compound and has a similar
structure to diborane
D. Facial and Meridional isomers associated with
( left[M a_{3} b_{3}right]^{n pm} ) type complex compound, both are optically
inactive
12
785 IUPAC name of ( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2} boldsymbol{C l}left(boldsymbol{N} boldsymbol{O}_{2}right)right] ) is:
A. platinum diaminechloronitrite
B. chloronitrito-N-ammineplatinum (II)
c. diamminechloridonitrito-N-platinum (II)
D. diamminechloronitrito-N-platinate (II)
12
786 The IUPAC name for
( left[boldsymbol{N} boldsymbol{i}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{N} boldsymbol{i} boldsymbol{C l}_{4}right] ) is :
A. Tetrachloridonickel(II)-tetraamminenickel(II)
B. Tetraamminenickel(II)-tetrachloridonickel(II)
C. Tetraamminenickel(II)-tetrachloronickelate(II)
D. Tetrachloridonickel(II)-tetraamminenickelate(II)
12
787 Name the following coordination entities and draw the structures of their
steroisomers:
(i) ( left[boldsymbol{C o}(boldsymbol{e n})_{2} boldsymbol{C l}_{2}right]^{+}(boldsymbol{e n}=boldsymbol{e t h a n e}- )
1, 2 – diamine)
(ii) ( left[boldsymbol{C r}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right]^{3-} )
(iii) ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{3} boldsymbol{C l}_{3}right] )
(Atomic number ( boldsymbol{C r}=mathbf{2 4}, boldsymbol{C o}=mathbf{2 7}) )
12
788 Select the correct I.U.P.A.C. name for ( left[left(mathrm{C}_{6}right.right. )
( left.left.mathrm{H}_{5}right)_{3} mathrm{P} C l operatorname{Pd} mathrm{Cl}_{2} operatorname{Pd} C lleft(mathrm{C}_{6} mathrm{H}_{5}right)_{3} mathrm{P}right] )
This question has multiple correct options
A. Chloridotriphenylphosphinepalladiun (II) ( mu ) -dich
oridochloridotriphenylphosphinepalladiun (II)
B. ( mu ) -Dichloridodichloridobis(triphenylphosphinc)
dipalladium (II)
C . ( mu ) -Dihloridobis( chloridotriphenylphosphinepallad
iun) (II)
D. Bis ( ( mu ) -chloridochloridotriphenylphosphinepallad
iun) (II)
12
789 Consider the reaction.
( left[N ileft(H_{2} Oright)_{6}right]^{2+}(a q)+3 e n(a q) rightarrow )
( left[N i(e n)_{3}right]^{2+}+2 H_{2} O )
Which of the following property of compound is changed in reaction?
A. Co-ordination number
B. Geometry of complex
c. Hybridization of central atom
D. wavelength of absorbed light
12
790 The correct descending order of the priority of the following atoms or group is:
( -boldsymbol{C H O},-boldsymbol{C H}_{2} boldsymbol{O H},-boldsymbol{C H}_{3},-boldsymbol{O H} )
A .2,4,1,3
B. 1,2,3,4
c. ( 4,3,2, )
D. 1,4,2,3
12
791 SITIU
Q. 15 Atomic number of Mn. Fe and Co are 25, 26
the following inner orbital octahedral complex ion:
(a) (CO(NH)61′ (b) [Mn(CN)]3- (c) [Fe(CN)61″
This
” Mn. Fe and Co are 25, 26 and 27 respectively. Which of
mer orbital octahedral complex ions are diamagnetic?
No] (c) [Fe(CN)61*- (d) [Fe(CN)613-
12
792 Total number of cis ( N-M n-C l ) bond
angles (that is, ( M n-N ) and ( M n-C l )
bonds in cis position) present in a
molecule of cis ( left[M n(e n)_{2} C l_{2}right] ) complex
is
( left(e n=N H_{2} C H_{2} C H_{2} N H_{2}right) )
12
793 Write the formulas for the following
coordination compounds.
a)Tetraammineaquachloro cobalt (III) chloride
b)Potassium tetrahydroxozincate
c) Potassium trioxalatoaluminate (III)
d) Tetracarbonylnickel (0)
12
794 Column I: Compounds Column II: Isomers 12
795 The number of bridging ligands and the number of bromine atoms present per molecule of the compound decaammine- ( mu^{-} ) hydroxodichromium(III) bromide are respectively:
A . 1,5
в. 2,6
c. 1,4
D. 1,3
12
796 Write the IUPAC names for the
following compounds:
(i) ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{5} mathrm{ONO}right] mathrm{Cl}_{2} )
(ii) ( mathrm{K}_{3}left[mathrm{Cr}(mathrm{CN})_{6}right] )
A. (i) Pentammonianitritocobalt (III) chloride
(ii) Potassiumhexacyanochromate (II)
B. (i) Pentammonianitratocobalt (II) chloride
(ii) Potassiumhexacyanidechromate (III)
C. (i) Pentamminenitritocobalt (III) chloride
(ii) Potassiumhexacyanochromate (III)
D. (i) Pentamminenitrocobalt (II) chloride
(ii) Potassiumhexacyanchromate (III)
12
797 The number of aromatic isomers
possible for ( C_{7} H_{8} O ) are:
( A cdot 2 )
B. 3
( c cdot 4 )
D. 5
12
798 Turnbull’s blue is:
( mathbf{A} cdot F e_{3}left[F e(C N)_{6}right]_{2} )
( mathbf{B} cdot K_{4} F e(C N)_{6} )
( mathbf{C} cdot K_{3} F e(C N)_{6} )
D. ( N a_{4} F e(C N)_{6} )
12
799 Find the number of donor atoms in thionitro ligand ( (N O S) ) 12
800 The two compounds
( left[boldsymbol{C o}left(boldsymbol{S O}_{4}right)left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}right] boldsymbol{B r} ) and
( left[boldsymbol{C o}left(boldsymbol{S O}_{4}right)left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}right] boldsymbol{C l} ) represent
A. Linkage is isomerism
B. lonisation isomerism
c. co – ordination isomerism
D. No isomerism
12
801 Which complex has ( d s p^{2} ) hybridization
and square planar shape?
A ( cdotleft[N i(C N)_{4}right]^{2-} )
B ( cdotleft[C uleft(N H_{3}right)_{4}right]^{2+} )
c. ( left[P t(C l)_{4}right]^{2-} )
D. All
12
802 Which complex compound possesses ( s p^{3} d^{2} ) hybridisation?
A ( cdotleft[F eleft(N H_{3}right)_{6}right]^{3+} )
B . ( left[F e(C N)_{6}right]^{4-} )
c. ( left[F e(C N)_{6}right]^{3} )
D cdot ( left[F e(C l)_{6}right]^{3-} )
12
803 ( operatorname{cis}left[operatorname{Co}(e n)_{2} C l_{2}right]^{+} ) can have ( d ) and ( l )
optical isomers
A. True
B. False
12
804 Which plays a major role in the formation of complex compound?
A. Transition metal
B. Lanthanides & Actinoides
c. Representative elements
D. p-Block elements
12
805 Which of the following molecular formula does not show chain
isomerism?
A. ( C_{4} H_{10} )
в. ( C_{4} H_{8} )
c. ( C_{4} H_{6} )
D. ( C_{4} H_{8} O )
12
806 The formula of the complex, tris(ethylenediamine) cobalt (iii) sulphate is:
A ( cdotleft[operatorname{Co}(e n)_{2} S O_{4}right] )
в. ( left[operatorname{Co}(e n)_{3} S O_{4}right] )
( c cdotleft[C o(e n)_{3}right]_{2}left(S O_{4}right)_{3} )
D. ( left[C o(e n)_{3}right]_{2} S O_{4} )
12
807 A magnetic moment of ( 1.73 B M ) will be
shown by one among of the following compounds:
( mathbf{A} cdotleft[C uleft(N H_{3}right)_{4}right]^{2+} )
B : ( left[N i(C N)_{4}right]^{2-} )
( mathrm{c} cdot operatorname{Ti} mathrm{Cl}_{4} )
D ( cdotleft[mathrm{CoCl}_{6}right]^{-3} )
12
808 Which of the following pairs of isomers is not correctly matched with its type of isomerism?
A ( cdotleft[C rleft(N H_{3}right)_{6}right]left[C r(C N)_{6}right] ) and
( left[C rleft(N H_{3}right)_{4}(C N)_{2}right]left[C rleft(N H_{3}right)_{2}(C N)_{4}right] ) – coordination
isomerism
в. ( operatorname{Co}left[left(N H_{3}right)_{5} N O_{2}right] C l_{2} ) and ( left[C oleft(N H_{3}right)_{5} O N Oright] C l_{2}- ) Linkage
isomerism
( mathbf{c} cdotleft[operatorname{Co}(p y)_{2}left(H_{2} Oright)_{2} C l_{2}right] C l ) and
( left[cos (p y)_{-} 2left(H_{-} 20right) C_{-} 3right] H_{-} 20 $ $- ) coordination
isomerism
D cdot ( left[P tleft(N H_{3}right)_{4} B r_{2}right] C l_{2} ) and ( left[P tleft(N H_{3}right)_{4} C l_{2}right] B r_{2} ) -lonisation isomerism
12
809 Chromium compound widely used in the
tanning of leather is:
( mathbf{A} cdot C r_{2} O_{7} )
B. ( C r_{2} O_{2} C l_{2} )
( mathrm{c} cdot mathrm{Cr}_{2} mathrm{O}_{3} )
D. ( K_{2} S O_{4} C r_{2}left(S O_{4}right)_{3} 24 H_{2} O )
12
810 Match the given pairs. 12
811 The compound ( N a_{2} I r C l_{6} ) reacts with triphenylphosphine in diethyleneglycol
in an atmosphere of ( C O ) to give
( left[operatorname{Ir} C l(C O)left(P P h_{3}right)_{2}right], ) known as ‘Vaska’s
compound’. The number of unpaired electrons and oxidation state of iridium
in the complex respectively is:
[Atomic number of ( boldsymbol{I r}=mathbf{7 7}] )
( A cdot 0,0 )
B. ( 0, )
( c cdot 1, )
D. 1,2
12
812 Assertion
When the unshared pairs house in the
hybrid orbitals, its consideration
becomes accountable and it is referred
to as hybrid lone pair moment.
Reason
The hybrid orbital concentrated the electron cloud in some particular directions and the electron cloud
remains under the control of a single nucleus.

Read the above assertion and reason
and choose the correct option regarding
¡t.
A. Assertion is true, Reason is true and Reason is correct explanation for Assertion
B. Assertion is true, Reason is true and Reason is not the correct explanation for Assertion
C. Assertion is true, Reason is false
D. Assertion is false, Reason is true

12
813 Write the formula of coordination
compound mercury tetrathiocyanatocobaltate (III):
12
814 When a co-ordination compound
( C r C l_{3} cdot 6 H_{2} O ) is mixed with ( A g N O_{3}, 2 )
moles of ( A g C l ) are precipitated per mole of the compound. Write
(i) Structural formula of the complex.
(ii) IUPAC name of the complex.
12
815 A chelating ‘agent is a chemical that catches’ a metal ion (charged particle) in its ‘claw’. Penicillin can remove
excesses of a metal by chelation in the
ailment known as Wilson’s disease. The
metal chelated by penicillin is?
A . Nickel
B. copper
c. Iron
D. Molybdenum
12
816 An amide with the formula ( C_{2} H_{5} N O ) is: 12
817 Which of the following primary and
secondary valencies are not correctly
marked against the compound?
( mathbf{A} cdotleft[C rleft(N H_{3}right)_{6}right] C l_{3}, p=3, s=6 )
В ( cdot K_{2}left[P t C l_{4}right], p=2, s=4 )
( mathbf{C} cdotleft[P tleft(N H_{3}right)_{2} C l_{2}right], p=0, s=4 )
( mathbf{D} cdotleft[C uleft(N H_{3}right)_{4}right] S O_{4}, p=4, s=4 )
12
818 If ionic radius of ( C s^{+} ) and ( C s^{-} ) are ( 1.69 AA )
and ( 1.89 AA ) respectively, the edge length of unit cell is :
A ( cdot 4.04 A^{circ} )
B . ( 3.54 A^{circ} )
c. ( 7.00 A^{circ} )
D. ( 1.04 A^{circ} )
12
819 ( 2.33 mathrm{g} ) of compound ( mathrm{X} ) (empirical formula
( left.C o H_{12} N_{4} C l_{3}right) ) upon treatment with
excess ( A g N O_{3} ) solution produces 1.435 ( g ) of a white precipitate. The primary and secondary valences of cobalt in
compound ( X, ) respectively, are. [Given : Atomic mass: ( boldsymbol{C o}=mathbf{5 9}, boldsymbol{C l}= )
( mathbf{3 5 . 5}, boldsymbol{A} boldsymbol{g}=mathbf{1 0 8}] )
( A cdot 3,6 )
в. 3,4
( c cdot 2,4 )
D. 4,3
12
820 The number of isomeric amines
possible for the formula ( boldsymbol{C}_{3} boldsymbol{H}_{mathbf{9}} boldsymbol{N} )
A . 4
B. 3
( c .5 )
D. 6
12
821 Draw Werner’s structure of the
following:
(a) ( C o C l_{3} .6 N H_{3} )
(b) ( C o C l_{3} .5 N H_{3} )
(c) ( C o C l_{3} .4 N H_{3} )
(d) ( C o C l_{3} .3 N H_{3} )
12
822 Which of the following complexes exists as pair of enantiomers?
( mathbf{A} cdotleft[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right]^{+} )
B. ( left[C r(e n)_{3}right]^{3+} )
c. ( left[operatorname{Co}left(Pleft(C_{2} H_{5}right)_{3}right)_{2} C l B rright. )
D. ( operatorname{trans}-left[operatorname{Co}(e n)_{2} C l_{2}right]^{+} )
12
823 What is the number of aromatic
isomers for ( C_{7} H_{8} O ? )
12
824 Consider the complex
( left[boldsymbol{C o}(boldsymbol{e n})_{2} boldsymbol{C l}left(boldsymbol{N O}_{2}right)right] boldsymbol{B r} . ) It can exhibit:
This question has multiple correct options
A. geometrical isomerism
B. optical isomerism
c. ionization isomerism
D. linkage isomerism
12
825 Which of the following is more stable
complex and why? ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{3+} ) and
( left[boldsymbol{C o}(boldsymbol{e n})_{3}right]^{3+} )
12
826 What is true for ( left[boldsymbol{F} e(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right]^{3-} ) and
( left[boldsymbol{F e} boldsymbol{F}_{6}right]^{3-}: )
A. Both are paramagnetic.
B. Only [Fe ( left.(C N)_{6}right]^{3-} ) is paramagnetic
C. only ( left[F e F_{6}right]^{-3} ) is paramagnetic
D. Both are diamagnetic
12
827 The number of isomers of the
compound with molecular formula
( boldsymbol{C}_{2} boldsymbol{H}_{3} boldsymbol{C l}_{3} ) is:
A . two
B. three
c. four
D. five
12
828 Explain the geometry of ( left[boldsymbol{C o}left(boldsymbol{M} boldsymbol{H}_{3}right)_{6}right]^{2+} )
on the basis of hybridization. ( (mathrm{Z} text { of } mathrm{Co}= )
27)
12
829 The process of separation of racemic modifications into d and I enantiomers
is called :
A. Resolution
B. Dehydration
c. Revolution
D. Dehydrohalogenation
12
830 Which ligand is expected to be
bidentate?
A. ( C_{2} O_{4}^{2} )
в. ( C H_{3} C equiv N )
( c cdot B r^{-} )
D. ( C H_{3} N H_{2} )
12
831 ( [A r] 3 d^{10} 4 s^{1} ) electronic configuration
belongs to :
( mathbf{A} cdot T i )
B. ( T l )
c. ( C u )
D. ( V )
12
832 Write IUPAC name of the following coordinate compounds:
(i) ( boldsymbol{K}left[boldsymbol{A} boldsymbol{g}(boldsymbol{C} boldsymbol{N})_{2}right] )
(ii) ( boldsymbol{K}_{mathbf{4}}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right] )
(iii) ( left[boldsymbol{A} boldsymbol{g}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}right] boldsymbol{C l} )
( (text { iv })left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right] boldsymbol{C l}_{3} )
12
833 Iron carbonyl, ( boldsymbol{F e}(boldsymbol{C O})_{5} ) is
A . trinuclear
B. tetranuclear
c. dinuclear
D. mononuclear
12
834 what is the formula of
tetrakis(pyridine) platinum(ii) tetraphenyl borate(iii)
12
835 Maximum number of electrons in a
subshell with ( I=3 ) and ( n=4 ) is :
A . 14
B. 16
c. 10
D. 12
12
836 EDTA is used for the estimation of:
( A cdot N a^{+} ) and ( K^{+} ) ions
B. CI’ and Br” ions
( c cdot c u 2^{2+} ) and ( A g^{+} ) ions
D. ( mathrm{Ca}^{2+} ) and ( mathrm{Mg}^{2+} ) ions
12
837 A transition metal complex adopts ( t_{2} g^{4} e g^{2} ) configuration. The nature of ligand surrounding the ion is :-
A. Strong field
B. weak field
c. neutral
D. oplus ( oplus )vefield
12
838 The bond length of ( C-O ) bond in
carbon monoxide is ( 1.128 $ ${ ) buildrel ( mathrm{~ I l c i r c ~ l o v e r ~ { m a t h r m { A } } $ $ . ~ T h e ~} )
( C-O ) bond in ( F e(C O)_{5} ) is:
12
839 Assertion
In tetrahedral hybridization ie. in ( s p^{3} )
hybridization all p-orbitals are involved
and no p-orbital is left for forming ( pi ) –
bonds.
Reason
Central atom can not form double bonds
in the molecules or species having ( s p^{3} ) hybridization.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
B. Both Assertion and Reason are correct, but Reason is not the correct explanation for Assertion.
c. Assertion is correct, but Reason is incorrect
D. Assertion is incorrect, but Reason is correct.
12
840 TEL is a compound used as
( A ). antibiotic
B. antiseptic
c. antiknocking
D. None of these
12
841 Secondary valencies correspond to
of the metal atom
and are satisfied by ligands.
A. coordination number
B. valency
c. element
D. molecules
12
842 The crystal fied stabilization energy
( (C F S E) ) of ( left[F eleft(H_{2} Oright)_{6}right] C l_{2} ) and
( boldsymbol{K}_{2}left[boldsymbol{N} boldsymbol{i} boldsymbol{C l}_{4}right], ) respectively, are:
A. ( -0.4 Delta_{o} ) and ( -0.8 Delta_{t} )
B. ( -0.4 Delta_{o} ) and ( -1.2 Delta_{t} )
c. ( -2.4 Delta_{o} ) and ( -1.2 Delta_{t} )
D. ( -0.6 Delta_{o} ) and ( -0.8 Delta )
12
843 ( mathrm{n}left[boldsymbol{C r}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right]^{3-}, ) the isomerism shown
is :
A. ligand
B. optical
c. geometrical
D. ionisation
12
844 Wilkinsons catalyst is:
( mathbf{A} cdotleft[left(P P h_{3}right)_{3} R hright] C l )
B. used in hydrogenation of alkenes and alkynes
C. homogeneous catalyst
D. all of these
12
845 The IUPAC name of ( boldsymbol{K}_{3}left[boldsymbol{V} boldsymbol{F}_{6}right] ) is
potassium hexafluorido vanadate (III).
A. True
B. False
12
846 Give the formulae of the following complexes:
(i) ammineaquadibromidocopper (II)
(ii) potassium tetracyanocuperate (II)
(iii) diamminedichloridoplatinum (II)
(iv)potassiumpentacyanonitrosylferrat
( e(11) )
(v) amminechloridobis (ethane-1,2-
diamine)cobalt (III) ion
(vi) tetraamminedichloridocobalt (III)
ion
12
847 ( left[boldsymbol{P T B r} boldsymbol{C l}left(boldsymbol{N O}_{2}right)left(boldsymbol{N} boldsymbol{H}_{3}right)right] boldsymbol{I} ) complex on
ionization gives the ion?
A ( cdot C l^{-} )
B. ( B r )
( c cdot I^{-} )
D. ( N O_{2}^{-} )
12
848 Question 17. What is spectrochemical series? Explain the difference
between a weak field ligand and a strong field ligand.
12
849 Barium ions, ( C N^{-} ) and ( C o^{2+} ) form an
ionic complex. If that complex is supposed to be ( 75 % ) ionised in water with vant Hoff factor ‘i’ equal to four
then the coordination number of ( C o^{2+} )
in the complex can be.
A. Six
B. Five
c. Four
D. six and Four both
12
850 Which among the following is a bi-
dentate ligand?
written as bipy
( mathbf{A} cdot C H_{3} C O O^{-} )
( mathbf{B} cdot: O C N^{-} )
( mathbf{c} cdot: N C O^{-} )
( begin{array}{cc}mathbf{D} cdot C H_{3}-C_{|}-C H=C & -C H_{3} \ : O & : O:end{array} )
12
851 IUPAC name of ( boldsymbol{N} boldsymbol{a}_{3}left[boldsymbol{C o}(boldsymbol{O} boldsymbol{N} boldsymbol{O})_{6}right] ) is:
A. Sodium cobaltinitrite
B. Sodium hexanitritocobaltate (III)
c. Sodium hexanitrocobalt (III)
D. Sodium hexanitritocobaltate (II)
12
852 Only two isomeric monochloro
derivatives are possible for
This question has multiple correct options
A. n-Butane
B. 2,4-Dimethyl pentane
c. Benzene
D. 2-Methyl propane
12
853 Which of the following statements is
not correct?
A. The complexes ( left[N i C l_{4}right]^{2-} ) and ( left[N i(C N)_{4}right]^{2-} ) differ in th
B. The complexes ( left[N i C l_{4}right]^{2-} ) and ( left[N i(C N)_{4}right]^{2-} ) differ in th
C. The complexes ( left[N i C l_{4}right]^{2-} ) and ( left[N i(C N)_{4}right]^{2-} ) differ in ( g e )
D. The complexes ( left[N i C l_{4}right]^{2-} ) and ( left[N i(C N)_{4}right]^{2-} ) differ in ( p r )
12
854 By IUPAC norms the formulae for Tetrahydroxozincate(ll) ion is:
( mathbf{A} cdotleft[Z n(O H)_{3}right]^{2} )
B . ( left[Z n(O H)_{4}right]^{3} )
( mathbf{c} cdotleft[Z n(O H)_{4}right]^{2} )
D. None of the above
12
855 ( x_{10} )
( x )
12
856 The IUPAC name of ( boldsymbol{X} boldsymbol{e}left[boldsymbol{P} boldsymbol{t} boldsymbol{F}_{6}right] ) is
A. hexafluoridoplatinate (VI) xenon
B. xenon hexafluoridoplationate (V)
c. xenon hexafluoridoplatinate (VI)
D. xenonium hexfluoridoplatinum (V)
12
857 Fill in the blank.
( left[N i(C N)_{4}right]^{2-} ) is ( _{-}-_{-}- ) in shape
whereas the shape of ( left[N i(C l)_{4}right]^{2-} ) is
12
858 Coordination compounds are mainly known for transition metals.
A. True
B. False
12
859 benzene derivatives would furnish only
three isomers in significant amount, when one more substituents is
introduced?
( mathbf{A} )
B.
( c )
D.
12
860 In the formatioin of octahedral complex
ligands approach towards
and orbital of
central metal
( mathbf{A} cdot d_{z^{2}}, d_{x^{2}-y^{2}} )
B . ( d_{x^{2}-y^{2}}, d_{x y} )
( mathbf{c} cdot d_{x y}, d_{y z} )
D. ( d_{z^{2}}, d_{x z} )
12
861 The electron pairs involved in hybridisation and not involved in bonding are called 12
862 Which pair represents chain isomers?
A ( cdot C H_{3} C H C l_{2} ) and ( C l C H_{2} C H_{2} C l )
B. n-propyl alcohol and isopropyl alcohol
c. 2- methylbutane and neopentane
D. Diethylether and dipropyl ether
12
863 Copper sulphate dissolves in ammonia
due to the formation of:
( mathbf{A} cdot C u_{2} O )
B ( cdotleft[C uleft(N H_{3}right)_{4}right] S O_{4} )
( mathbf{c} cdotleft[C uleft(N H_{3}right)_{4}right] O H )
D. ( left[C uleft(H_{2} Oright)_{4}right] S O_{4} )
12
864 Which one of the following molecular hybrides acts as a Lewis acid?
A ( cdot C H_{4} )
в. ( N H_{3} )
( mathrm{c} cdot mathrm{H}_{2} mathrm{O} )
D. ( B H_{3} )
E. All of these
12
865 Chlorophyll contains ( 2.68 % ) of ( M g ) by
weight. Then the number of ( M g ) atom in
( 2.00 mathrm{g} ) of chlorophyll is:
(Atomic mass of ( M g=24) )
12
866 A chelating agent has two or more than two donor atoms to bind a single metal
ion. Which of the following is not a chelating agent?
A. Thiosulphato
B. Glycinato
c. oxalato
D. Ethane-1, 2-diamine
12
867 What is the formula of the compound
cesium trichlorofluoro iodate(III)?
( mathbf{A} cdotleft[operatorname{Cr}left(N H_{3}right)_{5} C lright] S O_{4} )
( mathbf{B} cdot operatorname{Cs}left[I C l_{3} Fright] )
( mathbf{c} cdot operatorname{Cs}left[I C l_{2} Fright] )
D. None of the above
12
868 Potassium ferrocyanide is an example of
A. Complex salts
B. Normal salts
c. Double salts
D. Basic salts
12
869 Which of the following complex is most stable among the folowing?
( mathbf{A} cdot N a_{3}left[F eleft(C_{2} O_{4}right)_{3}right. )
B ( cdotleft[C Oleft(N H_{3}right)_{6}right]^{+3} )
( mathbf{c} cdotleft[C rleft(N H_{3}right)_{6}right] C l_{3} )
D. ( N a_{3}left[text {CoF}_{6}right] )
12
870 Select the correct order of ( C-0 ) bond
order in mixed phosphine carbonyl
complex:
( mathbf{A} cdotleft[left(P h_{3} Pright)_{3} M o(C O)_{3}right]>left[left(P h_{2} P C lright)_{3} M o(C O)_{3}right]> )
( left(P h P C l_{2}right)_{3} M o(C O)_{3} )
( mathbf{B} cdotleft[left(P h_{3} Pright)_{3} M o(C O)_{3}right]>left[left(P h_{2} P C lright)_{3} M o(C O)_{3}right] )
( left(P h P C l_{2}right)_{3} M o(C O)_{3} )
( mathbf{D} cdotleft[left(P h_{3} Pright)_{3} M o(C O)_{3}right] )
( left(P h P C l_{2}right)_{3} M o(C O)_{3} )
12
871 Q. 10 The compounds [Co(SO4)(NH3)5]
(a) linkage isomerism
(c) coordination isomerism
“pounds [CO(SO)(NH). 1Br and CO(SO4) (NH3)5 CL represent
(b) ionisation isomerism
(d) no isomerism
mit different structural formula arek
12
872 The geometry of ( N i(C O)_{4} ) and
( N ileft(P P h_{3}right)_{2} C l_{2} ) are:
A. both square planar
B. tetrahedral and square planar, respectively
c. both tetrahedral
D. square planar and tetrahedral, respectively
12
873 Among the isomeric alkanes of molecular formula ( C_{5} H_{12}, ) identify the one that on photochemical chlorination
yields:
(i) A single monochloride
(ii) Three isomeric monochlorides
(iii) Four isomeric monochlorides.
12
874 The cobalt hexammine cation has an
atom of cobalt in the centre, surrounded by six molecules of ammonia that are
attached to it. The shape of this ion is?
A . Tetrahedral
B. Square
c. Linear
D. Octahedral
12
875 Q. 21 Identify the optically active compounds from the following
(a) [Co(en),13+
(b) trans-[Co(en),Cl]*
(c) cis-[Co(en),cl,1
(d) [Cr(NH3), Cl]
12
876 Which of the following is a tridentate ligand?
A ( . E D T A^{4-} )
B. ( (C O O)_{2}^{2} )
c. ( operatorname{dien} )
D. ( N O_{2} )
12
877 Write the IUPAC names of the following coordination compounds:
(i) ( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{3} boldsymbol{C l}_{3}right] )
(ii) ( boldsymbol{K}_{mathbf{3}}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right] )
(iii) ( left[operatorname{CoBr}_{2}(e n)_{2}right]^{+} )
12
878 Among the following complexes (K-P):
( boldsymbol{K}_{3}left[boldsymbol{F} boldsymbol{e}left(boldsymbol{C} boldsymbol{N}_{6}right]-boldsymbol{K} ) and right.
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right] boldsymbol{C l}_{3}-boldsymbol{L} )
( N a_{3}left[C o(text {oxalate})_{3}right]-M ) and
( left[boldsymbol{N} boldsymbol{i}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right] boldsymbol{C l}_{2}-boldsymbol{N} )
( boldsymbol{K}_{2}left[boldsymbol{P t}(boldsymbol{C N})_{4}right]-boldsymbol{O} ) and
( left[boldsymbol{Z} boldsymbol{n}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]left(boldsymbol{N} boldsymbol{O}_{3}right)_{2}-boldsymbol{P} )
the diamagnetic complexes are:
A. K.L,M,N
в. к,м,о,
c. L,M,O,
D. all
12
879 The compound having the molecular
formla ( C_{4} H_{10} ) does not show isomerism.
A. True
B. False
12
880 Which of the following is not a complex?
A. Potassium ferricyanide
B. Ferrous ammonium sulphate
C . Potassium ferrocyanide
D. Tetraaminecopper
(II) sulphate
12
881 The complex ion transdichlorobis(ethylenediamine) rhodium
(III) is optically active.
A. True
B. False
12
882 When one mole of each of the following complex is treated with an excess of
( A g N O_{3} ).which will give maximum
amount of ( boldsymbol{A} boldsymbol{g} boldsymbol{C l} ) ?
( mathbf{A} cdotleft[operatorname{Co}left(N H_{3}right)_{6}right] C l_{3} )
в. ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{5} mathrm{Cl}right] mathrm{Cl}_{2} )
( mathbf{c} cdotleft[operatorname{Co}left(N H_{3}right) C l_{2}right] C l )
D. ( left[C oleft(N H_{3}right)_{3} C l_{3}right] )
12
883 Write the formulas for the following coordination compounds:
Amminebromidochloridonitrito-N-
platinate(II)
12
884 How many geometric isomers are possible in the following coordination
entities?
( (a)left[C r(O X)_{3}right]^{3-} )
( (b)left[C o C l_{3}left(N H_{3}right)_{3}right] )
( A cdot 0,2 )
B. 2, 0
c. 2,2
D. 4,0
12
885 The IUPAC name of ( boldsymbol{X} boldsymbol{e}left[boldsymbol{P} boldsymbol{t} boldsymbol{F}_{6}right] ) is :
A. Hexafluoroplatinate(VI)xenon.
B. Xenonhexafluoroplatinate(V).
c. xenonhexafluoroplatinate(VI).
D. Xenoniumhexafluoroplatinum(V)
12
886 Classify the following into homoleptic & heteroleptic complexes?
¡) ( boldsymbol{K}_{4}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right] )
ii) ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}left(boldsymbol{C O}_{3}right)right] boldsymbol{C l} )
iii) ( boldsymbol{K}_{2}left[boldsymbol{Z} boldsymbol{n}(boldsymbol{O} boldsymbol{H})_{4}right] )
iv) ( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2} boldsymbol{C l}left(boldsymbol{N} boldsymbol{O}_{2}right)right] )
12
887 ( boldsymbol{C o}^{2+}(boldsymbol{a q} cdot)+boldsymbol{S C N}^{-}(boldsymbol{a q} cdot) rightarrow )
Complex ( (boldsymbol{X}) )
( N i^{2+}(a q .)+ )
dimethylglyoxime ( frac{N H_{4} O H}{longrightarrow} )
Complex ( (boldsymbol{Y}) )
The coordination number of cobalt and
nickel in both the complexes ( (X) ) and ( (Y) ) is four. The geometry of complexes ( (x) ) and (Y) are respectively:
A. tetrahedral and square planar
B. both tetrahedral
c. square planar and tetrahedral
D. both square planar
12
888 *
Q. 34 CuSO4.5H.0 is blue in colour while Cuso, is colourless. Why?
12
889 What are chelates? Giving one example and write the importance of chelate? 12
890 The IUPAC name of ( boldsymbol{X} boldsymbol{e}left[boldsymbol{P} boldsymbol{t} boldsymbol{F}_{boldsymbol{6}}right] ) is:
A. Hexafluoridoplatinate (VI) xenon
B. Xenon xenon hexafluoroplatinate (V)
c. xenon hexafluoridoplatinate (VI)
D. xenonium hexafluoridoplatinum ( V )
12
891 Select the correct IUPAC name for
( N a_{2}left[F e(C N)_{5} N Oright] ) complex.
This question has multiple correct options
A. Sodiumpentacyanidonitrosoniumferrate(II)
B. Sodiumpentacyanidonitrosyliumferrate(II)
c. sodiumpentacyanidonitrosyl ferrate(II)
D. sodiumpentacyanidonitrosyliron(II)
12
892 In the dichlorination reaction of propane
mixture of products are obtained. How many isomers the mixture contains?
( A cdot 2 )
B. 3
( c cdot 4 )
D. 5
12
893 Among the following, the most stable complex is:
( mathbf{A} cdotleft[F eleft(H_{2} Oright)_{6}right]^{3} )
B . ( left[F eleft(N H_{3}right)_{6}right]^{3+} )
c. ( left[F eleft(C_{2} O_{4}right)_{3}right]^{3} )
D. ( left[F e C I_{6}right]^{3-} )
12
894 werner ploneerea the rıeld or coordination chemistry in the late
nineteenth century. At that time, a number of compounds of cobalt (III) chloride with ammonia were known,
with general formula ( C o C l_{3} . x N H_{3} )
( boldsymbol{x}=mathbf{3} ) to ( mathbf{6} )
Treatment of these compounds with aqueous HCl acid did not remove the ammonia. However, treatment of the
compounds with excess of ( A g N O_{3} ) at
( 273 mathrm{K} ) gave white precipitate of AgCl in varying ratio depending on the structure. Also each complex had electrical conductivity of varying
nature.
There is no reaction of the compound with aqueous HCl indicating that there
is no free ( N H_{3} ). Thus, ( N H_{3} ) ligand is bonded to cobalt(III) by
A. Primary valency
B. Secondary valency
c. Both of these.
D. None of these
12
895 Which forms an equal number of moles
of ions, when one mole of it is dissolved
in excess of water?
A. Ferrous ammonium sulphate, Carnallite
B. Carnallite, Alum
c. Alum, Potassium ferrocyanide
D. Potassium ferrocyanide, Potassium ferricyanide
12
896 The ligand ( Nleft(C H_{2} C H_{2} N H_{2}right)_{3} )
A. bidentate
B. tridentate
c. tetradentate
D. pentadentate.
12
897 Coordination compounds
( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{3}(boldsymbol{N} boldsymbol{C S})right] ) and
( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{3}(boldsymbol{S} boldsymbol{C} boldsymbol{N})right] ) are examples of
which isomerism?
A. coordination
B. linkage
c. ionizaiton
D. optical
12
898 For given complex ( left[N ileft(P P h_{3}right)_{2} C l_{2}right] )
mention
(i) IUPAC Name
(ii) Central metal ion
(iii) Ligands
(iv) Coordination number
(v) Nature of the complex
12
899 IUPAC name for the complex
( left[C uleft(N H_{3}right)_{4}right] S O_{4} ) is:
A. cupramonium sulphate
B. copper sulphate tetraamonia
c. tetrammine copper
(II) sulphate
D. copper amonium
(IV) sulphate
12
900 The correct formula of diammine
dichlorodicyano chromate (III) is :
( mathbf{A} cdotleft[operatorname{Cr} C l_{2}(C N)_{2}left(N H_{3}right)_{2}right]^{3+} )
B . ( left[C r C l_{2}(C N)_{2}left(N H_{3}right)_{2}right]^{3} )
( mathbf{c} cdotleft[C r C l_{2}(C N)_{2}left(N H_{3}right)_{2}right. )
D. ( left[C r C l_{2}(C N)_{2}left(N H_{3}right)_{2}right] )
12
901 The valence bond structure of carbon
monoxide is best described as ( : C equiv 0 )
with a dative bond from oxygen atom to the less electronegative carbon atom. If true enter 1 else 0
12
902 The ionizable valency of ( mathrm{Ni} ) in ( mathrm{Ni}(mathrm{CO})_{4} ) is
( A cdot 2 )
B. 4
( c cdot 0 )
D.
12
903 What type of isomerism is exhibited the
( operatorname{complex}left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{C l}right] boldsymbol{S} boldsymbol{O}_{4} ? )
12
904 Which of the following energy level diagram for ( left[F e F_{6}right]^{3-} ) is correct on the basis of crystal field theory? 12
905 The IUPAC name of
( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{5}(boldsymbol{N O})right] boldsymbol{S} boldsymbol{O}_{4} ) is penta
aquanitrosylium iron ( I) sulphate.
A. True
B. False
12
906 What is the oxidation state of Co in the
complex ( left[text { Co} C l_{2}(e n)_{2}right]^{+} ? )
[Note: Ethylenediamine ( (e n)=H_{2} N- )
( left.boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{N} boldsymbol{H}_{2}right] )
12
907 Ethylenediamine is an example of ligand. 12
908 How many EDTA
(ethylenediaminetetraacetic acid) molecules are required to make an
octahedral complex with ( C a^{2+} ? )
A . six
B. three
c. one
D. two
12
909 In black and white photography, the developed film is fixed by washing with hypo solution which dissolves the under
composed ( A g B r ) to form a complex ion formed is:
( A cdotleft[A gleft(S_{2} O_{3}right)_{2}right]^{2} )
B . ( left[A gleft(S_{2} O_{3}right)_{2}right]^{3} )
c. ( left[A gleft(S_{2} O_{3}right)_{2}right] )
D. none of these
12
910 Assertion
( Delta_{o} ) increases in the order of
( left[boldsymbol{C r} boldsymbol{C l}_{boldsymbol{6}}right]^{boldsymbol{3}-}<left[boldsymbol{C r}(boldsymbol{C N})_{boldsymbol{6}}right]^{boldsymbol{3}-}< )
( left[boldsymbol{C r}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right]^{3-} )
Reason
The stronger the ligand field, the higher
will be ( Delta_{o} ) value.
A. Both Assertion and Reason are correct and the Reason is the correct explanation of the Assertion
B. Both Assertion and Reason are correct but the Reason is not the correct explanation of the Assertion
C. The Assertion is correct but the Reason is incorrect
D. The Assertion is incorrect but the Reason is correct
12
911 One pink solid (X) has the formula
( mathrm{CoCl}_{3} cdot 5 N mathrm{H}_{3} cdot mathrm{H}_{2} mathrm{O} cdot mathrm{A} ) solution of this
salt (X) in water is also pink and
precipitates 3 mole ( A g C l ) on treatment with silver nitrate solution. When the
pink solid (X) is heated, it loses
1 ( operatorname{mole} H_{2} O ) to yield a purple solid ( (Y) )
with the same molar ratio of ( boldsymbol{N} boldsymbol{H}_{3} )
( C l: C o . ) The purple solid releases two of
its chlorides rapidly on dissolution and
after treatment with ( A g N O_{3} ) solution. The coordination number of cobalt in
complexes ( (X) ) and ( (Y) ) is six. The IUPAC
name of pink (X) and purple (Y) complexes respectively are:
A. Tetraamminechloridoaquacobalt(III) chloride and pentaamminechloridocobalt(III) chloride
B. Pentaamminechloridocobalt(III) chloride and pentaammineaquacobalt(III) chloride,
c. Pentaammineaquacobalt(III) chloride and pentaamminechloridocobalt(III) chloride
D. Pentaammineaquacobaltate(III) chloride and pentaamminechloridocobaltate(III) chloride
12
912 What are primary valencies and
secondary valencies give an example?
12
913 Give the formula of each of the following
coordination entities:
(i) ( C o^{3+} ) ion is bound to one ( C l^{-} ), one
( N H_{3} ) molecule and two bidentate
ethylene diamine (en) molecule.
(ii) ( N i^{2+} ) ion is bound to two water
molecules and two oxalate ions.
Write the name and magnetic behavior of each of the above coordination entities. (At. no.: ( mathrm{Co}=27, mathrm{Ni}=28 ) )
12
914 Haemoglobin is a complex of ( boldsymbol{F e}(boldsymbol{I} boldsymbol{I}) )
bound to porphyrin rings. If true enter 1 , else enter 0 .
12
915 Question 9. Predict the number of unpaired electrons in the square
planar [Pt(CN)41 ion.
Pt is present in group 10. Draw its configuration and find hybridization
to find the number of unpaired electrons.
Solution
12
916 (A) When ( F e(C N)_{2} ) solution is treated with KCN solution, species formed does not give tests of ( F e^{2+} ) and ( C N^{-} )
(B) When ( K_{2} S O_{4} ) solution is treated
with ( A l_{2}left(S O_{4}right)_{3} ) solution, species
formed gives tests of ( boldsymbol{K}^{+}, boldsymbol{A l}^{3+} ) and
( boldsymbol{S} boldsymbol{O}_{4}^{2-} )
Species formed in experiment A does
not give test of ( F e^{2+} ) and ( C N^{-} . ) It is due to formation of
A ( cdot K_{2}left[F e(C N)_{4}right] )
B . ( K_{3}left[F e(C N)_{5}right] )
c. ( K_{3}left[F e(C N)_{6}right] )
D. ( K_{4}left[F e(C N)_{6}right] )
12
917 The hybridisation involved in
( left[boldsymbol{C o}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right]^{3-} ) is ( ? )
A ( cdot s p^{3} d^{2} )
B. ( s p^{3} d^{3} )
c. ( d s p^{3} )
D. ( d^{2} s p^{3} )
12
918 Select the correct I.U.P.A.C. name for
( left[boldsymbol{C r}left(boldsymbol{C}_{boldsymbol{6}} boldsymbol{H}_{mathbf{6}}right)_{2}right] )
( mathbf{A} cdot ) bis ( left(eta^{5} text { -benzene }right) ) chromium (0)
B. bis( ( eta^{6} ) -benzene) chromate (O)
C. bis ( left(eta^{5} text { -benzene }right) ) chromate (O)
D. bis( ( eta^{6} ) -benzene) chromium (0)
12
919 ( boldsymbol{K}_{mathbf{3}}left[boldsymbol{A l}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right] ) is called:
A. Potassium alumino oxalate
B. Potassium trioxalatoaluminate(III)
C. Potassium aluminium(III) oxalate
D. Potassium trioxalato aluminate(VI)
12
920 Several octahedral complexes are
possible from combinations of
( C o^{3+}, C l^{-} ) and ( N H_{3} . ) The correct
statement(s) regarding the octahedral coordination entities having the formula ( cdotleft[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{boldsymbol{n}} boldsymbol{C l}_{boldsymbol{6}-boldsymbol{n}}right]^{(boldsymbol{n}-boldsymbol{3})+} ) with
( boldsymbol{n} geq mathbf{3}, ) is ( / ) are
This question has multiple correct options
A. At most six octahedral complexes are possible
B. One of the complexes is homoleptic
C. All the complexes are paramagnetic
D. Some of the complexes dissociate in water to give ( C o^{3+} ) and ( C l^{-} ) ions
12
921 Suppose the complex ion
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}left(boldsymbol{H}_{2} boldsymbol{O}right)_{2} boldsymbol{C l}_{2}right]^{-} ) is
synthesized with two ammine ligands cis to each other, the two aqua ligands
cis to each other and two chloro ligands
cis to each other. Is this complex
optically active?
12
922 Complex formation in solution results in:
This question has multiple correct options
A. change in solubility of sparingly soluble salt
B. change in pH of solution
C . change in freezing point
D. change in chemical nature
12
923 An isomer of ethanol is:
A. methanol
B. dimethyl ether
( c . ) acetone
D. diethyl ether
12
924 How many gem dihalides with different formulas are possible for ( C_{3} H_{6} C l_{2} ? )
( A )
B. 2
( c cdot 3 )
D. 4
12
925 Which of the following complex shows optical isomerism?
A ( cdotleft[C d(C N)_{4}right]^{2-} )
B ( cdotleft[mathrm{Cr}left(mathrm{H}_{2} mathrm{O}right)_{3} mathrm{Cl}_{3}right] .3 mathrm{H}_{2} mathrm{O} )
( mathbf{c} cdotleft[Z n(g l y)_{2}right]^{circ} )
D ( cdotleft[N i(d m g)_{2}right]^{circ} )
12
926 Question 15. What is the relationship between observed colour of the
complex and the wavelength of light absorbed by the complex?
12
927 Which of the following kinds of isomerism can nitroethane exhibit?
A. Metamerism
B. Optical isomerism
c. Tautomerism
D. Position isomerism
12
928 Total number of structural isomers of
( C_{4} H_{7} C l )
12
929 According to Werner’s coordination theory, there are kinds of
valency and
12
930 Primary and secondary valency of Pt in
( left[boldsymbol{P t}(boldsymbol{e n})_{2} boldsymbol{C l}_{2}right] boldsymbol{C l}_{2} ) are:
( A cdot 4,4 )
B. 2,6
( c cdot 6, )
D. None of these
12
931 ( B F_{3} ) has less lewis acidic property than
( B B r_{3} . ) Why?
A. 0
в.
c. no idea
D. wron question
12
932 The co-ordination number of zinc in zinc
blende (Zns) is
A. 6
B. 4
( c cdot 8 )
D. 12
12
933 Discuss the nature of bonding in the following coordination entities on the basis of valence bond theory:
(i) ( left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{mathbf{6}}right]^{4-}left(text { ii) }left[boldsymbol{F} boldsymbol{e} boldsymbol{F}_{6}right]^{3-}(text { iii })right. )
( left[boldsymbol{C o}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right]^{3-}(text { iv })left[boldsymbol{C o} boldsymbol{F}_{6}right]^{3-} )
12
934 2.5 The correct IUPAC name of [Pt(NH3)2CL2] is
(a) Diamminedichloridoplatinum (II)
(b) Diamminedichloridoplatinum (IV)
(c) Diamminedichloridoplatinum (0)
(d) Dichloridodiammineplatinum (IV)
3230
12
935 Which of the following statements
is/are correct?
This question has multiple correct options
A. Nitroprusside ion is ( left[mathrm{Fe}(mathrm{CN})_{5} mathrm{NO}right]^{2-} )
B. Nitroprusside ion is ( left[mathrm{Fe}(mathrm{CN})_{5} mathrm{NOS}right]^{2-} )
C. Prussian blue and Tumbull’s blue, respectively, are ( F e_{4}left[F e(C N)_{6}right]_{3} ) and ( F e_{3}left[F e(C N)_{6}right]_{2} )
D. Prussian blue and Thmbull’s blue, respectively, are ( F e_{3}left[F e(C N)_{6}right]_{2} ) and ( F e_{4}left[F e(C N)_{6}right]_{3} )
12
936 Which of the following pairs are
coordination isomers?
( mathbf{A} )
( left[mathrm{Co}left(mathrm{NH}_{3}right)_{5} mathrm{Br}right] mathrm{SO}_{4} ) and ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{5} mathrm{SO}_{4}right] mathrm{Br} )
B. ( left[mathrm{Co}(mathrm{en})_{2}left(mathrm{H}_{2} mathrm{O}right) mathrm{Cl}right] mathrm{Cl}_{2} ) and ( left[mathrm{Co}(mathrm{en})_{2} mathrm{Cl}right] mathrm{Cl} . mathrm{H}_{2} mathrm{O} )
( mathbf{c} )
( left[mathrm{Co}left(mathrm{NH}_{3}right)_{6}right]left[mathrm{Cr}(mathrm{CN})_{6}right] ) and ( left[mathrm{CO}(mathrm{CN})_{6}right]left[mathrm{Cr}left(mathrm{NH}_{3}right)_{6}right] )
( D )
( left[mathrm{Co}left(mathrm{NH}_{3}right)_{5}left(mathrm{NO}_{2}right)right] mathrm{Cl}_{2} ) and ( left[mathrm{Co}left(mathrm{NH}_{3}right)_{5}(mathrm{ONO})right] mathrm{Cl}_{2} )
12
937 The common name of
( boldsymbol{K}left[boldsymbol{P t C l}_{3}left(boldsymbol{eta}^{2} cdot boldsymbol{C}_{2} boldsymbol{H}_{4}right)right] ) is
A. Potassium salt
B. Zeise’s salt
c. complex salt
D. None of these
12
938 Iron carbonyl, ( boldsymbol{F e C O}_{5} ) is:
A. Trinuclear
B. Mononuclear
c. Tetranuclear
D. Dinuclear
12
939 Which complex is most stable?
( mathbf{A} cdotleft[C u(C N)_{2}right]^{-} K_{d}=1 times 10^{-16} )
B ( cdotleft[F e(C N)_{6}right]^{4-} K_{d}=1 times 10^{-37} )
( mathbf{c} cdotleft[F e(C N)_{6}right]^{3-} K_{d}=1 times 10^{-44} )
( mathbf{D} cdotleft[A g(C N)_{2}right]^{-} K_{d}=1 times 10^{-20} )
12
940 The type of isomerism shown by
( left[boldsymbol{C o}(boldsymbol{e n})_{2}(boldsymbol{N} boldsymbol{C S})_{2}right] boldsymbol{C l} ) and
( left[boldsymbol{C o}(boldsymbol{e n})_{2}(boldsymbol{N} boldsymbol{C S})right] boldsymbol{C l} ) is :
A. ionization
B. cordination
c. linkage
D. all of these
12
941 0.001 mol of ( C oleft(N H_{3}right)_{5}left(N O_{3}right)left(S O_{4}right) )
was passed through a cation exchanger and the acid coming out of it required
( 20 mathrm{ml} ) of ( 0.1 mathrm{M} ) NaOH for neutralisation.
Hence, the complex is:
( mathbf{A} cdotleft[C oleft(N H_{3}right)_{5} S 0_{4}right] N O_{3} )
B. ( left[operatorname{Co}left(N H_{3}right)_{5} N O_{3}right] S O_{4} )
c. ( left[operatorname{Co}left(N H_{3}right)_{5}right]left(S O_{3}right)left(N O_{3}right) )
D. none of these
12
942 Which of the following is incorrectly matched?

Complex compound and number of
unpaired electrons
( mathbf{A} cdotleft[F e F_{6}right]^{3-}, 5 )
B ( cdotleft[C r(e n)_{3}right]^{2}+, 2 )
c. ( left[operatorname{Co}left(N H_{3}right)_{6}right]^{3+}, 4 )
D ( cdotleft[M nleft(H_{2} Oright)_{6}right]^{2+}, 5 )

12
943 Identify all the possible monochloro structural isomers expected to be
formed on free radical
monochlorination of
( left(boldsymbol{C H}_{3}right)_{2} boldsymbol{C H C H}_{2} boldsymbol{C H}_{3} )
In the given molecule, there are four
different types of hydrogen atoms. Replacement of these hydrogen atoms will give the following?
( mathbf{A} cdotleft(C H_{3}right)_{2} C H C H_{2} C H_{2} C l )
B ( cdotleft(C H_{3}right)_{2} C H C H(C l) C H_{3} )
( mathbf{c} cdotleft(C H_{3}right)_{2} C(C l) C H_{2} C H_{3} )
D. ( C H_{3} C Hleft(C H_{2} C lright) C H_{2} C H_{3} )
12
944 Which of the following compounds has
( 2 p pi-2 p pi ) bond?
( A cdot B F_{3} )
в. ( B C l_{3} )
( mathbf{c} cdot B B r_{3} )
D. ( B I_{3} )
12
945 Which one of the following statement is
correct for ( boldsymbol{d}^{4} ) ions ( [mathrm{P}=text { pairing energy }] ? )
A. When ( Delta_{0}>P ), low-spin complex form
B. When ( Delta_{0}P ), high-spin complex form
D. When ( Delta_{0}<P ), both high-spin and low-spin complexes form
12
946 Which metal ion has highest stability in the Irving-Williams order of stability of metal ions?
( mathbf{A} cdot M n^{2+} )
в. ( Z n^{2} )
( mathrm{c} cdot F e^{2} )
D. ( C u^{2} )
12
947 Five compounds with formula ( C_{4} H_{8} B r_{2} ) How many structure of (X) are possible?
( A cdot 2 )
B. 3
( c cdot 4 )
( D .5 )
12
948 Among the following, the species that is both tetrahedral and diamagnetic is:
A ( cdotleft[N i C l_{4}right]^{2+} )
B. ( N i(C O)_{4} )
c. ( left[N i(C N)_{4}right]^{2+} )
D. ( left[N ileft(H_{2} Oright)_{6}right]^{2+} )
12
949 The correct name for the complex
( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]left[boldsymbol{C o}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right] ) is:
A. hexaaminechromium(III) trioxalatocobalt (III)
B. hexaamminechromate
(III) trioxalatocobalate (III)
c. hexaamminechromium
(III) trioxalatocobaltate (III)
D. hexaamminechromate
(III) trioxalatocobalt (III)
12
950 Q. 7 Indicate the complex ion which shows geometrical isomerism.
(a) Cr(H20)4Cl2)* (b) [Pt(NH), Cl] (c) [Co(NH3)613+ (d) [Co(CN):(NC)13-
Thinline
12
951 Which of the following complex will give
white precipitate with ( mathrm{BaCl}_{2}(mathrm{aq}) ) ?
( A cdotleft[cos left(N H_{2}right)_{4} S O_{4}right] N O_{2} )
B. ( left[mathrm{Cr}left(mathrm{NH}_{3}right)_{5} S O_{4}right] mathrm{C} )
( mathbf{c} cdotleft[operatorname{cr}left(mathrm{NH}_{3}right)_{5} mathrm{Cl}right] mathrm{SO}_{4} )
D. Both ( B ) and ( C )
12
952 E.A.N. of ( left[boldsymbol{F e}left(boldsymbol{eta}^{boldsymbol{5}}-boldsymbol{C}_{boldsymbol{5}} boldsymbol{H}_{boldsymbol{5}}right)(boldsymbol{C O})_{2} boldsymbol{C l}right] )
A . 36
B. 35
c. 37
D. 34
12
953 The magnetic moment of ( left[M n X_{4}right]^{2-} ) is 5.9 BM. The geometry of the complex ion
is:
( (X=text { monodentate halide ion }) )
A . tetrahedral
B. square planar
c. both are possible
D. none of these
12
954 The number of sigma bonds in Ziese’s salt is:
A . 4
B. 6
( c cdot 8 )
D. none of these
12
955 On the basis of the following observations made with aqueous
solutions, assign secondary valences to metals in the following compounds:
Moles of ( A g C l ) precipitated per Formula mole of the compounds with
[
operatorname{excess} A g N O_{3}
]
(i)
[
P d C l_{2} .4 N H_{3}
]
(i)
[
mathrm{NiCl}_{2} cdot 6 mathrm{H}_{2} mathrm{O}
]
(iii)
[
P t C l_{4} .2 H C l
]
(iv)
[
mathrm{CoCl}_{3} .4 mathrm{NH}_{3}
]
( (v) )
[
P t C l_{2} cdot 2 N H_{3}
]
12
956 The pair in which both species have same magnetic moment (spin only value) is :
( mathbf{A} cdotleft[operatorname{Cr}left(H_{2} Oright)_{6}right]^{2+},left[operatorname{CoCl}_{4}right]^{2-} )
B . ( left[C rleft(H_{2} Oright)_{6}right]^{2+},left[F eleft(H_{2} Oright)_{6}right]^{2+} )
C. ( left[M nleft(H_{2} Oright)_{6}right]^{2+},left[C rleft(H_{2} Oright)_{6}right]^{2} )
D. ( left[C o C l_{4}right]^{2-},left[F eleft(H_{2} Oright)_{6}right]^{2+} )
12
957 What types of isomer are
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{B r}right] boldsymbol{S} boldsymbol{O}_{4} ) and
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{S O}_{4}right] boldsymbol{B r} ? )
12
958 How many different isomers are possible for a hydrocarbon with the molecular formula ( C_{4} H_{10} )
A
B. 2
( c cdot 3 )
D. 5
12
959 Three arrangements are shown for the
( operatorname{complex}left[operatorname{CoBr}_{2}left(N H_{3}right)_{2}(e n)right]^{oplus} . ) Which
one is wrong statement?
A. I and II are geometrical isomers
B. Il and III are optically active isomers
c. I and III are optically active isomers
D. II and III are geometrical isomers
12
960 (i) What type of isomerism is shown by
the complex ( left[boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right] boldsymbol{C l}_{3} ? )
(ii) On the basis of crystal field theory, write the electronic configuration for ( 4 d )
ion if ( Delta_{0}>P )
(iii) Write the hybridization and shape of ( left[boldsymbol{C o F}_{6}right]^{3-} ) (Atomic number of ( mathrm{Co}=27 ) ).
12
961 Which of the following is the formula of prussian blue?
( A )
( F e_{3}left[F e(C N)_{6}right]_{2} )
в. ( F e_{2}left[F e(C N)_{6}right]_{3} )
c. ( F e_{4}left[F e(C N)_{6}right]_{3} )
D. ( F e_{3}left[F e(C N)_{6}right]_{4} )
12
962 ( ln left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2} boldsymbol{C l}_{2}right], boldsymbol{P} boldsymbol{t}-boldsymbol{C l} ) bond length
is ( 2 A ) and ( C I-C I ) distance is ( 2.88 A ) then
the compound is:
A. tetrahedral
B. square pyramidal
c. cis-square planar
D. trans-square planar
12
963 Find IUPAC name of the hydrate isomer
of ( C r C l_{3} .6 H_{2} O, ) which is having lowest
electrical conductivity
A. Hexaaquachromium(III)chloride
B. Tetraaquadichloridochromium(III)chloridedihydrate
c. Pentaaquachloridochromium(III)chloridemonohydrat
D. Triaquatrichloridochrominum(III)trihydrate
12
964 Question 7. Give the electronic configuration of
following complexes on the basis of crystal field splitting the
[CoFP, [Fe(CN).1 and [Cu(NH3)612+.
12
965 Which one is more stable in the
following pairs of complexes? Give
reasons.
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{O}_{2}right)_{6}right]^{4-} ) and ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{O}_{2}right)_{boldsymbol{6}}right]^{3-} )
ii) ( boldsymbol{K}_{4}left[boldsymbol{F} e(boldsymbol{C} boldsymbol{N})_{6}right] ) and ( boldsymbol{K}_{3}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right] )
( left(text { iii) }left[boldsymbol{C O}left(boldsymbol{H}_{2} boldsymbol{O}right)_{6}right]^{2+} ) and right.
( left[boldsymbol{C O}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]^{2+} )
12
966 IUPAC name of the Wiilkinson’s catalyst
( left[boldsymbol{R h C l}left(boldsymbol{P} quad boldsymbol{P h}_{3}right)_{3}right] )
A. Chlorotris (triphenylphosphine) rhodium (I)
B. Chlorotris (triphenylphosphine) rhodium (IV)
C. Chlorotris (triphenylphosphine) rhodium (0)
D. Chlorotris (triphenylphosphine) rhodium (VI)
12
967 The correct order of spin-only magnetic moments among the following is?
(Atomic number: ( M n=25, C o= )
( mathbf{2 7}, boldsymbol{N} boldsymbol{i}=mathbf{2 8}, boldsymbol{Z} boldsymbol{n}=mathbf{3 0}) )
A ( cdotleft[Z n C l_{4}right]^{2-}>left[N i C l_{4}right]^{2-}>left[C o C l_{4}right]^{2-}>left[M n C l_{4}right]^{2} )
B . ( left[C o C l_{4}right]^{2-}>left[M n C l_{4}right]^{2-}>left[N i C l_{4}right]^{2-}>left[Z n C l_{4}right]^{2} )
C ( cdotleft[N i C l_{4}right]^{2-}>left[C o C l_{4}right]^{2-}>left[M n C l_{4}right]^{2-}>left[Z n C l_{4}right]^{2} )
D. ( left[M n C l_{4}right]^{2-}>left[C o C l_{4}right]^{2-}>left[N i C l_{4}right]^{2-}>left[Z n C l_{4}right]^{2} )
12
968 In complexes of weak field ligands,
( Delta_{o}P ) (pairing energy), the energy difference between
( t_{2 g} ) and ( e_{g} ) sets is relatively high.
The correct statement regarding
( left[boldsymbol{C r}(boldsymbol{e n})_{2} boldsymbol{C l}_{2}right]^{+} ) and
( left[boldsymbol{C o}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{2}left(boldsymbol{N} boldsymbol{H}_{3}right)_{2}right]^{-} ) complex ions is :
A. both are equally stable complexes
B. both have equal number of stereoisomers
c. both are diamagnetic complexes
D. none of the above
12
969 Type your question
( (e n=text { ethane }-1,2-text { diamine }) )
( mathbf{A} )
( B )
( c )
( D )
12
970 Question 5. Explain on the basis of valence bond theory that
INI(CN).- ion with square planar structure is diamagnetic and the
INICI] ion with tetrahedral geometry is paramagnetic.
( Write the outer configuration of Ni and Ni2+ ions.
() CNbeing strong field ligand, causes pairing whereas C does not.
(iii) Diamagnetic compounds have no unpaired electrons whereas in
case of paramagnetic compounds unpaired electrons are present
12
971 According to Werner’s coordination theory, there are kinds of
valency, and
primary valency of a central metal ion is
satisfied with
A. three, negative, positive, cations
B. different, negative, positive, anions
C. two, primary, secondary, anions
D. two, saturated, unsaturated, cations
12
972 The formula of trimethylaluminium is:
A ( . A l_{2}left(C H_{3}right)_{6} )
B ( . A lleft(C H_{6}right)_{3} )
( mathbf{c} cdot A lleft(C H_{2}right)_{6} )
D. None of the above
12
973 Explain the applications of coordination compounds in the field of metal purification giving an example : 12
974 The anion of acetylacetone(acac) forms
( mathrm{Co}(a c a c)_{3} ) chelate with ( C o^{3+} . ) The rings
of the chelate are.
A. Five membered
B. Four membered
c. six membered
D. Three membered
12
975 Find relation between these two
compounds
A. Chain isomer
B. Position isomer
C. Functional isomer
D. None of the above
12
976 The complex that can show fac- and
mer- isomers is :
A ( cdotleft[operatorname{Co}left(N H_{3}right)_{3}left(N O_{2}right)_{3}right] )
B ( cdotleft[P tleft(N H_{3}right)_{2} C l_{2}right] )
c. ( left[operatorname{CoCl}_{2}(e n)_{2}right] )
D. ( left[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right]^{+} )
12
977 Synergic bonding involves
A. The transference of electrons form ligands to metal
B. The transference of electrons from filled metal orbitals
to anti-bonding orbitals of ligands
C. Both (A) and (B)
D. None of these
12
978 Among the statements ( (a)-(d), ) the incorrect ones are:
(a) Octahedral ( C o(I I I) ) complexes with strong field ligands have very high magnetic moments
(b) When ( Delta_{0}<P, ) the d-electron
configuration of ( operatorname{Co}(I I I) ) in an octahedral complex is ( t_{e g}^{4} e_{g}^{2} )
(c) Wavelength of light absorbed by ( left[boldsymbol{C o}(boldsymbol{e n})_{3}right]^{3+} ) is lower than that of
( left[boldsymbol{C o F}_{6}right]^{3-} )
(d) If the ( Delta_{0} ) for an octahedral complex
of ( C o(I I I) ) is ( 18,000 mathrm{cm}^{-1}, ) the ( Delta_{t} ) for
its tetrahedral complex with the same
ligand will be ( 16,000 mathrm{cm}^{-1} )
( A cdot(b) ) and ( (c) ) only
B. (a) and (d) only
C. (a) and (b) only
D. (c) and (d) only
12
979 Select correct statement(s):
I) When excess ( F e C l_{3} ) solution is added
to ( boldsymbol{K}_{mathbf{4}}left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{5}right] ) solution, in addition to
( boldsymbol{F} boldsymbol{e}^{I I I}left[boldsymbol{F} boldsymbol{e}^{I I}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right]^{-}, boldsymbol{F} boldsymbol{e}^{I I}left[boldsymbol{F} boldsymbol{e}^{I I I}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right] )
is also formed due to side redox
reaction
(II) When ( F e C l_{2} ) is added to
( boldsymbol{K}_{3}left[boldsymbol{F} e(boldsymbol{C} boldsymbol{N})_{6}right] ) solution, in addition to
( boldsymbol{F} boldsymbol{e}^{I I}left[boldsymbol{F} boldsymbol{e}^{I I I}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right]^{-}, boldsymbol{F} boldsymbol{e}^{I I I}left[boldsymbol{F} boldsymbol{e}^{I I}(boldsymbol{C} boldsymbol{N})_{boldsymbol{6}}right] )
is also formed due to side redox
reaction
( (| I) F e^{I I I}left[F e^{I I}(C N)_{6}right]^{-} ) is
paramagnetic while ( boldsymbol{F} e^{I I}left[boldsymbol{F} e^{I I I}(boldsymbol{C} boldsymbol{N})_{6}right]^{-} ) is diamagnetic
( (mathrm{IV}) boldsymbol{F} boldsymbol{e}^{I I}left[boldsymbol{F} boldsymbol{e}^{I I}(boldsymbol{C} boldsymbol{N})_{6}right]^{-} ) is diamagnetic
while ( boldsymbol{F e}^{I I}left[boldsymbol{F} e^{I I I}(boldsymbol{C} boldsymbol{N})_{6}right]^{-}, ) is
paramagnetic
A ( . ) ।, ॥
в. ॥I, Iv
c. both (a) and (b)
D. None of these
12
980 Which molecule/ion among the
following cannot act as a ligand in complex compounds?
A. ( C O )
в. ( C H_{4} )
c. ( C N^{-} )
D. ( B r^{-} )
12
981 Which of the following can show coordination isomerism?
(i) ( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]left[boldsymbol{P t C l}_{4}right] ; ) (ii)
( left[boldsymbol{F e}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]_{2}left[boldsymbol{P t}(boldsymbol{C N})_{6}right]_{3} quad ; ) (iii)
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{6}right]left[boldsymbol{C r}left(boldsymbol{C}_{2} boldsymbol{O}_{4}right)_{3}right] ; ) (iv)
( left[boldsymbol{P t}(boldsymbol{e n})_{3}right]left(boldsymbol{S O}_{4}right)_{2} )
12
982 The correct molecular formula of the
following complexes are:
(a) Pentamminechlorocobalt (III) ion
(b) Lithium tetrahydroaluminate (III)
A ( cdot(a)left[C oleft(N H_{3}right)_{5} C lright]^{2+} ;(b) L ileft[A l H_{4}right] )
B . ( (a)left[C oleft(N H_{3}right)_{5} C lright]^{3+} ;(b) L i_{2}left[A l H_{4}right] )
C ( cdot(a)left[C oleft(N H_{3}right)_{5} C lright]^{2-} ;(b) L i_{4}left[A l H_{4}right. )
D. None of these
12
983 The disodium salt of ethylene diamine tetracetic acid can be used to estimate the following ion(s) in the aqueous solution.
A. ( M g^{2+} ) ion
B. ( C a^{2+} ) ion
c. ( N a^{+} ) ion
D. both ( M g^{2+} ) and ( C a^{2+} )
12
984 Determine whether following statements is true (T) or false (F) and
write the code in sequence.
1. Dialysis is a method of separation of
copper sulphate crystals from copper sulphate solution.
2. Synergic bonding means self strengthening bond
3. Chromate ion forms a octahedral
structure with all the four ( C r-O ) bond
lengths being equal.
4. Ligand field theory represents an application of molecular orbital theory to transition metal complexes.
A . FTFT
в. ( T F T F )
c. ( F F T T )
D. ( T T F F )
12
985 Assertion
In natural tris chelating complex,
( left[boldsymbol{C o}(boldsymbol{a c a c})_{3}right], ) in each ring the two ( mathrm{M}-mathrm{O} )
bonds are equal to length, as are two ( mathrm{C} ) O and the two C-C bonds because,
Reason

In each ring resonance takes place.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct

12
986 Which of the following pairs
is/are functional isomers?
This question has multiple correct options
A. butan-2-ol and ethoxy ethane
B. ethanal and vinyl alcohol
C . acetaldehyde and acetone
D. ethanoic acid and methyl formate
12
987 How many structural isomer are
possible with the molecular ( C_{8} H_{10} ? )
12
988 Select the correct IUPAC name from
following.
A. Diamminesilver (I) chloride: ( left[operatorname{Ag}left(mathrm{NH}_{3}right)_{2}right] mathrm{Cl} )
B. Potassium cyanidoferrate (III) : K ( _{3} ) [Fe(CN) ( _{6} ) ]
C. Tetraamminecopper sulphate : [Cu(NHz),]SO
D. Hexamminecobalto
(III) chloride : [Co(NH_) ( left._{6}right] ) Сз ( _{3} )
12
989 Explain Werner’s theory of co-ordination compounds? 12
990 The primary valency of a central metal ion in a complex is satisfied with 12
991 Assertion
Pentane and 3-methylpentane are chain isomers.
Reason
Pentane is a straight-chain alkane while 3 -methyl pentane is a branched-
chain alkane
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Assertion is incorrect and Reason is correct
12
992 ( ln B_{2} H_{6} ) number of ( 3 c-2 e ) bonds
is/are:
A
B. 2
( c cdot 3 )
D. none of these
12
993 The pair(s) of coordination
complexes/ions exhibiting the same kind of isomerism is(are):
This question has multiple correct options
( mathbf{A} cdotleft[C rleft(N H_{3}right)_{5} C lright] C l_{2} ) and ( left[C rleft(N H_{3}right)_{4} C l_{2}right] C l )
( mathbf{B} cdotleft[operatorname{Co}left(N H_{3}right)_{4} C l_{2}right]^{+} ) and ( left[P tleft(N H_{3}right)_{2}left(H_{2} Oright) C lright]^{+} )
( mathbf{c} cdotleft[operatorname{CoBr}_{2} C l_{2}right]^{2-} ) and ( left[P t B r_{2} C l_{2}right]^{2-} )
( mathbf{D} cdotleft[P tleft(N H_{3}right)_{3}left(N O_{3}right)right] C l ) and ( left[P tleft(N H_{3}right)_{3} C lright] B r )
12
994 Which can show linkage isomerism?
( mathbf{A} cdotleft[operatorname{Cr}left(H_{2} Oright)_{5} C lright] C l_{2} )
в. ( left[C rleft(H_{2} Oright)_{6}right] C l_{3} )
( mathbf{c} cdotleft[C oleft(N H_{3}right)_{5}(C N)right] C l_{2} )
D. ( left[operatorname{Co}left(N H_{3}right)_{5} S O_{4}right] B r )
12
995 The units of solubility product of silver
chromate ( left(A g_{2} C r O_{4}right) ) will be
A ( cdot m o l^{2} L^{-2} )
B ( cdot m o l^{3} L^{-3} )
( mathrm{c} cdot operatorname{mol} L^{-1} )
D. molL”
12
996 Question 11. Calculate the overall complex dissociation equilibrium
constant for the Cu(NH3)+ ions, given that B4 for this complex is
2.1 x 1013
12
997 Select the correct statements amount
the following:
1. Complexes ( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3}right)_{4}right]^{2+},left[boldsymbol{M} boldsymbol{n} boldsymbol{C l}_{4}right]^{2+},left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{6}right] )
are all paramagnetic
2. Complexes ( left[boldsymbol{C u}left(boldsymbol{N} boldsymbol{H}_{3} boldsymbol{4}right)right]^{2+},left[boldsymbol{N} boldsymbol{i}(boldsymbol{C} boldsymbol{N})_{4}right]^{2-},[boldsymbol{N} boldsymbol{i}(boldsymbol{D} boldsymbol{M} )
are all square planner
3. The correct stability order of the complexes will be ( left[boldsymbol{F e}left(boldsymbol{H}_{2} boldsymbol{O}right)_{3}right]^{3+}< )
( left[boldsymbol{F e}left(boldsymbol{C}_{2} boldsymbol{O}_{3}right)right]^{3-}<left[boldsymbol{F} boldsymbol{e}(boldsymbol{C} boldsymbol{N})_{3}right]^{3-} )
4. ( left[boldsymbol{C r}(boldsymbol{e n})_{3}right]^{3+} ) exist in the three isometric forms
A. Only 1 is correct
B. 1,3 and are correct
c. 2 and 4 are correct
D. 1,2 and 3 are correct
12
998 Match the column:
Column-I Column-II
(p) Complex having lowest
(a) ( left[F e(C O)_{4}right]^{2-} quad ) bond length of CO ligand
(q) Follow Sidgwick’s rule of
(b) ( left[V(C O)_{6}right]^{-} quad ) E.A.N.
(r) Synergic bonding is
(c) ( Kleft[P t C l_{3}left(C_{2} H_{4}right)right] ) involved in complex/ion
( (d) )
(s) Complex having highest ( left[F eleft(H_{2} Oright)_{5} N Oright] S O_{4} ) bond length of CO ligand
(t) Oragnometallic compound
( mathbf{A} cdot(mathrm{a}) mathrm{q}, mathrm{r}, mathrm{s}, mathrm{t} ;(mathrm{b}) mathrm{p}, mathrm{q}, mathrm{r}, mathrm{t} ;(mathrm{c}) mathrm{r}, mathrm{r} ;(mathrm{d}) mathrm{r} )
B. (a)s,t; (b) p,q,r,t; (c) r; (d) r
C. ( (a) q, s, t ;(b) q, r, t ;(c) r, t ;(d) r )
D. ( (a) q, r, t ;(b) q, r, t ;(c) r )
12
999 Match each coordination compound in List-I with an appropriate of characteristics from List-II. (en ( = )
( boldsymbol{H}_{2} boldsymbol{H} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{N} boldsymbol{H}_{2} ; ) Atomic numbers:
( mathrm{Ti}=22, mathrm{Cr}=24 ; mathrm{Co}=27 ; mathrm{Pt}=78) )
List 1
Parama dexhil
( A )
4 ( left[C rleft(N H_{3}right)_{4} C l_{2}right] C l ) and ionizatio
Diamag ( operatorname{lex} )
( B )
3 ( left[T ileft(H_{2} Oright)_{3} C lright]left(N O_{3}right)_{2} )
2
and cis-trans
Parama ( operatorname{exn} )
( c )
( left[P t(e n)left(N H_{3}right) C lright] N O_{3} ) 3 and cis-trans so ।
( left[C oleft(N H_{3}right)_{4}left(N O_{3}right)_{2}right] N O_{3} ) Diamagn
and exhib
ionizatior
isomerisr 4
12
1000 From the stability constant (hypothetical values) given below,
predict which is the strongest ligand?
( mathbf{A} cdot C u^{2+}+4 N H_{3} rightarrowleft[C uleft(N H_{3}right)_{4}right]^{2+}, K=4.5 times 10^{11} )
B. ( C u^{2+}+4 C N^{-} rightarrowleft[C u(C N)_{4}right]^{2-}, K=2.0 times 10^{27} )
( mathbf{c} cdot C u^{2+}+2 e n rightarrowleft[C u(e n)_{2}right]^{2+}, K=3.0 times 10^{15} )
D ( cdot C u^{2+}+4 H_{2} O rightarrowleft[C uleft(H_{2} Oright)_{4}right]^{2+}, K=9.5 times 10^{8} )
12
1001 Total numbers of hybrid orbitals present
( operatorname{in} C H_{3}-C equiv C H ) are:
( mathbf{A} cdot mathbf{8} )
B. 6
( c cdot 4 )
D.
12
1002 The common formula of Turn bull’s blue
and Prussian blue is:
( mathbf{A} cdot F e_{3}left[F e(C N)_{6}right]_{2} )
( mathbf{B} cdot F e_{3}left[F e(C N)_{6}right]_{3} )
c. ( K F eleft[F e(C N)_{6}right] )
D. ( K_{4} F e_{2}left[F e(C N)_{6}right]_{2} )
12
1003 Select the correct IUPAC name for
( left[mathrm{Pt}left(mathrm{NH}_{3}right)_{4}right]^{2+} ) complex ion
A. Tetraammineplatinum(II) ion
B. Tetraammineplatinum(2+) ion
c. Tetraammineplatinate(II) ion
D. Tetraammineplatinate(2+) ion
12
1004 What is EAN? Write it’s formula. 12
1005 ( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{S O}_{4}right] boldsymbol{C l} ) is an octahedral
coordination compound. Write the IUPAC name of the above coordination
compound.
12
1006 Write the formula for each of the
following complexes:
(a) hexamine cobalt (III) chloride
(b) potassium iron (III)
hexacyanoferrate (II)
(c) diamminedichloroplatinum (II)
(d) tetracarbonylnickel (0)
(e) triamminechlorocyanonitrocobalt
( (| I) )
(f) lithium tetrahydridoaluminate (III)
(g) sodium bis (thisulphato)argentate
(1)
(h) nickel hexachloroplatinate (IV)
(i) tetraammineplayinum(II) amminetri chloroplatinate (II)
12
1007 In the crystal field of the complex
( left[boldsymbol{F} e(boldsymbol{C l})(boldsymbol{C} boldsymbol{N})_{4}(boldsymbol{O})_{2}right)^{4-}, ) the electronic
configuration of metal is found to be ( t_{2 g}^{6} ) ( e_{g}^{0}, ) then which of the following is/are true about this complex ion? This question has multiple correct options
A. It is paramagnetic complex
B. 0 – 0 bond length will be more than found in ( O_{2} ) molecule
c. Its IUPAC name will be chlorotetracyanosuperoxidoferrate (II) ion
D. It will show geometrical as well as optical isomerism
12
1008 Type of isomerism shown by
( left[boldsymbol{C r}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5} boldsymbol{N} boldsymbol{O}_{2}right] boldsymbol{C l}_{2} ) is
A. optical
B. ionisation
c. geometrical
D. linkage
12
1009 A metallic element has a cubic lattice.
Each edge of the unit cell is ( 2 AA ). The
density of the metal is ( 2.5 mathrm{cm}^{-3} ) The unit
cells in 200 g of metal are :
A ( .1 times 10^{2} )
В. ( 1 times 10^{26} )
( c cdot 1 times 10^{2} )
2
D. ( 1 times 10^{25} )
12
1010 Vitamin ( B_{12} ) is a complex of cobalt. If
true enter 1 , else enter 0
12
1011 Which of the following orbitals can not undergo hybridisation amongst themselves?
( (I) 3 d, 4 s )
( (I I) 3 d, 4 d )
( (I I I) 3 d, 4 s & 4 p )
( (I V) 3 s, 3 p & 4 s )
( mathbf{A} cdot I I )
B. II and III
c. ( I, I I ) and ( I V )
D. II and ( I V )
12
1012 The conductivity measurement of a coordination compound of Cobalt (III) shows that it dissociates into 3 ions in
solution. The compound is:
A. Hexaamminecobalt (III) chloride
B. Pentaamminesulphatocobalt (III) chloride
c. Pentaamminechloridocobalt
(III) sulphate
D. Pentaamminechloridocobalt (III) chloride
12
1013 Which of the following is an EAN of iron in potassium ferricyanide?
A . 28
B. 36
c. 35
D. 39
12
1014 Write the formulae of the following compounds. Sodium hexanitrito-N-cobaltate 12
1015 what is the formula of potassium amminetrichlorido platinate(ii) 12
1016 The correct combination is:
( mathbf{A} cdotleft[N i(C N)_{4}right]^{2-} ) -tetrahedral; ( left[N i(C O)_{4}right] ) -paramagnetic
B. ( left[N i C l_{4}right]^{2-} ) -paramagnetic; ( left[N i(C O)_{4}right] ) -tetrahedral
( mathbf{c} cdotleft[N i C l_{4}right]^{2-} ) -diamagnetic; ( left[N i(C O)_{4}right] ) -square-planar
D. ( left[N i C l_{4}right]^{2-} ) -square-planar; ( left[N i(C N)_{4}right]^{2-} ) -paramagnetic
12
1017 The octahedral complex ions ( left[boldsymbol{F e C l}_{6}right]^{3-} )
and ( left[boldsymbol{F e}(boldsymbol{C N})_{6}right]^{3-} ) are both
paramagnetic but the former is high spin and the latter is low spin. In the low
spin complex, ( left[boldsymbol{F e}(boldsymbol{C N})_{boldsymbol{6}}right]^{3-} ) has the d-
configuration as:
( mathbf{A} cdot t_{2 g}^{3} e_{g}^{2} )
B . ( t_{2}^{5} )
( mathbf{c} cdot t_{2}^{2} )
D. ( e^{5} )
12
1018 Select the IUPAC name for the following
complex.
A. Tetraamminecobalt (III)- ( mu ) dihydroxidobis(ethylenediamine) cobalt (III) chloride
B. ( mu ) -Dihydroxidotetraamminebis(ethylenediamine) dicobalt(III) chloride
c. Tetraammine cobaltate (III)- ( mu ) -dihydroxidobis(ethane-
1, 2-diamine) cobalt
(III) chloride
D. Tetraamminecobalt (III)- ( mu ) dihydroxidobis(ethylenediamine) cobalt(II) tetrachloride
12
1019 Which one of the following has largest number of isomers?
( (R= ) alkyl group,en = ethylenediamine)
( mathbf{A} cdotleft[R uleft(N H_{3}right)_{4} C l_{2}right]^{+} )
B . ( left[operatorname{Co}left(N H_{3}right)_{5} C lright]^{2+} )
c. ( left[I rleft(P R_{3}right)_{2} H(C O)right]^{2} )
D. ( left[operatorname{Co}(e n)_{2} C l_{2}right] )
12
1020 Which of the following ligands form a chelate?
A. Acetate
B. Oxalate
c. cyanide
D. Ammonia
12
1021 The two isomers ( X ) and ( Y ) with the
formula ( boldsymbol{C r}left(boldsymbol{H}_{2} boldsymbol{O}right)_{5} boldsymbol{C l B r}_{2} ) were taken
for experiment on depression in
freezing point. It was found that one
mole of ( X ) gave depression
corresponding to 2 moles of particles
and one mole of Y gave depression due
to 3 moles of particles. The structural
formulae of ( X ) and ( Y ) respectively are:
( mathbf{A} cdotleft[C rleft(H_{2} Oright)_{5} C lright] B r_{2} ;left[C rleft(H_{2} Oright)_{4} B r_{2}right] C l cdot H_{2} O )
B ( left.cdotleft[operatorname{Cr}left(H_{2} Oright)_{5} C lright)right] B r_{2} ;left[operatorname{Cr}left(H_{2} Oright)_{3} C l B rright] cdot 2 H_{2} O )
( mathbf{c} cdotleft[C rleft(H_{2} Oright)_{5} B rright] B r C l ;left[C rleft(H_{2} Oright)_{4} C l B rright] B r cdot H_{2} O )
( mathbf{D} cdotleft[operatorname{Cr}left(H_{2} Oright)_{4} B r_{2}right] C l cdot H_{2} O ;left[C rleft(H_{2} Oright)_{5} C lright] B r_{2} )
12
1022 Which one of the following is paramagnetic ?
A. ( N_{2} )
B. ( N O )
( c cdot c o )
D. ( O_{3} )
12
1023 What is Zeise’s Salt and Ferrocene?
Explain with structure?
12
1024 1-Butene and 2-Butene exhibits
isomerism.
A. position
B. metamerism
c. constitutional
D. functional group
12
1025 ( C r-C ) bond in the compound
( left[boldsymbol{C r}(boldsymbol{C O})_{6}right] ) shows ( boldsymbol{pi} ) – character due to
A. covalent bonding
B. coordinate bonding
c. synergic bonding
D. ionic bonding
12
1026 N
3 When 0.1 mol Coll (NH2), is treated with excesso
AGCL are obtained. The conductivity of solution will correspond to
(a) 1:3 electrolyte
(b) 1:2 electrolyte
c) 1. 1 electrolyte
(d) 3: 1 electrolyte
12
1027 Write the formulae of the following coordination compounds. triamminetrinitrocobalt(III) 12
1028 The IUPAC name of the complex
( left[boldsymbol{C r} boldsymbol{C l}_{2}left(boldsymbol{H}_{2} boldsymbol{O}right)_{4}right] boldsymbol{N} boldsymbol{O}_{3} ) is :
A. Dichlorotetraaquachromium(III) nitrate
B. Tetraaquadichlorochromium(III) nitrate
c. chromiumtetraaquadichloro nitrate
D. Dichlorotetraaquadnromium nitrate
12
1029 ( boldsymbol{S}^{2-}+boldsymbol{N} boldsymbol{a}_{2}left[boldsymbol{F} e(boldsymbol{C} boldsymbol{N})_{5} boldsymbol{N} boldsymbol{O}right] longrightarrow )
Complex is having violet/purple coloration(X)
The total number of possible isomers for complex ( X ) is ( ldots ldots . . ) provided the
ambident behavior of ( C N^{-} ) is
not considered
12
1030 Which one of the following platinum complexes is used in cancer
chemotherapy?
( A cdot operatorname{cis}-left[P t C l_{2}left(N H_{3}right)_{2}right. )
B. trans ( -left[P t C l_{2}left(N H_{3}right)right] )
( mathrm{c} cdotleft[P tleft(N H_{3}right)_{4}right]^{2+} )
( mathbf{D} cdotleft[P t C l_{4}right]^{2-} )
12
1031 A complex involving ( d^{2} s p^{3} ) hybridization
is :
A. a square planargeometry
B. a tetrahedral geometry
C. an octahedral geometry
D. trigonal planar geometry
12
1032 ( left[boldsymbol{P t}left(boldsymbol{N} boldsymbol{H}_{3}right)left(boldsymbol{N} boldsymbol{H}_{2} boldsymbol{O H}right)(boldsymbol{p} boldsymbol{y})left(boldsymbol{N} boldsymbol{O}_{2}right)right] boldsymbol{N} boldsymbol{O} )
has square planar shape and has three geometrical isomer
A. True
B. False
12
1033 In which of the following configuration
(s) the value of ‘spin only’ magnetic moment is 2.84 BM for octahedral
complex:
This question has multiple correct options
A . ( d^{4} ) (in strong field ligand)
B. ( d^{2} ) (in weak field ligand)
c. ( d^{3} ) (in weak asa well as in strong field ligand)
D. ( d^{5} ) (in strong field ligan)
E ( cdot d^{8} ) (in weak field ligand)
12
1034 The IUPAC name for the complex
( left[boldsymbol{C o}left(boldsymbol{N} boldsymbol{H}_{3}right)_{5}left(boldsymbol{N} boldsymbol{O}_{2}right)right] boldsymbol{C l}_{2} ) is:
A. Nitrito – N – pentaammine cobalt( (II) chloride
B. Nitrito – N – pentaammine cobalt(II) chloride
c. Pentaammine nitrito – N – cobalt( II) chloride
D. Pentaammine nitrito – N – cobalt (III) chloride
12

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