Alcohols, Phenols And Ethers Questions

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List of alcohols, phenols and ethers Questions

Question No Questions Class
1 topp
( Q ) Type your question
xture of (A) and (B
12
2 The above compound on strong heating gives:
[
begin{array}{c}
boldsymbol{o}-boldsymbol{T} boldsymbol{s} \
boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C} boldsymbol{H}-boldsymbol{C H}_{3}
end{array}
]
( A )
[
begin{array}{c}
mathbf{o} mathbf{H} \
mathbf{C H}_{3}-mathbf{C H}_{2}-mathbf{C} mathbf{H}-mathbf{C H}_{3} text { and } mathbf{C H}_{3}
end{array}langlemathbf{O}rangle-mathbf{s} mathbf{o}_{3} mathbf{H}
]
в.
[
begin{array}{c}
mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}-mathrm{SO}_{3} mathrm{H} text { and } mathrm{CH}_{3}langlemathrm{O}rangle text { of } \
mathrm{CH}_{3}
end{array}
]
( c )
[
mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}=mathrm{CH}_{2} text { and } mathrm{CH}_{3}langlemathrm{O}rangle-mathrm{so}_{3} mathrm{H}
]
D.
[
mathrm{CH}_{3}-mathrm{CH}=mathrm{CH}-mathrm{CH}_{3} text { and } mathrm{CH}_{3}-langlemathrm{O}rangle-mathrm{so}_{3} mathrm{H}
]
12
3 The reduction of phenol to benzene is carried out with sodium borohydride.
A. True
B. False
12
4 Write the mechanism of the reaction of
( H I ) with methoxymethane.
12
5 Conversion of phenol to salicylic acid and to salicyaldehyde are known as? (respectively)
A. Reimer – Tiemann reaction and Kolbe’s reaction
B. Williamson’s synthesis and Hydroboration-oxidation
c. Kolbe’s reaction and Williamson’s synthesis
D. Kolbe’s reaction and Reimer – Tiemann reaction
12
6 The reaction of ( boldsymbol{C H}_{3} boldsymbol{O C}_{2} boldsymbol{H}_{5} ) with ( boldsymbol{H} boldsymbol{I} )
gives:
( mathbf{A} cdot C H_{3} I )
в. ( C_{2} H_{5} O H )
c. ( C H_{3} I+C_{2} H_{5} O H )
D. ( C_{2} H_{5} I+C H_{3} O H )
12
7 The IUPAC name of ( boldsymbol{C H}_{3}- )
( boldsymbol{C}left(boldsymbol{C H}_{3}right)(boldsymbol{O H}) boldsymbol{C H}_{2}-boldsymbol{C H}left(boldsymbol{C H}_{3}right)_{2} ) is:
A. 2,4-Dimethylpentan-2-ol
B. 2,4-dimethylpentan-4-ol
c. 2, 2-dimethylbutane
D. 2,4,4-trimethylbutan-2-ol
12
8 Which of the following is wood alcohol?
A. ( C H_{3} O H )
в. ( C_{2} H_{5} O H )
c. 1-Butanol
D. 2-Methyl-1-propanol
12
9 ( left(boldsymbol{C H}_{3}right)_{3} boldsymbol{C O C H}_{3} ) and ( boldsymbol{C H}_{3} boldsymbol{O C}_{2} boldsymbol{H}_{5} ) are
treated with hydroiodic acid.The fragments obtained after reactions are respectively:
A ( cdotleft(C H_{3}right)_{3} C I+C H_{3} O H ; C H_{3} I+C_{2} H_{5} O H )
B. ( left(C H_{3}right)_{3} C I+C H_{3} O H ; C H_{3} O H+C_{2} H_{5} I )
c. ( left(C H_{3}right)_{3} C O H+C H_{3} I ; C H_{3} O H+C_{2} H_{5} I )
D. ( C H_{3} I+left(C H_{3}right)_{3} C O H ; C H_{3} I+C_{2} H_{5} O H )
12
10 topp 5
Q type your question
4
( B )
( c )
( D )
12
11 Methylphenyl ether can be obtained by reacting:
A. phenolate ions and methyl iodide
B. methoxide ions and bromobenzene
c. methanol and phenol
D. bromo benzene and methyl bromide
12
12 Phenol ( frac{(i) N a O H}{(i i) C O_{2} / 140^{circ} C} A frac{H^{+} / H_{2} O}{longrightarrow} )
( boldsymbol{B} frac{boldsymbol{A} boldsymbol{l}_{2} boldsymbol{O}_{3}}{boldsymbol{C H}_{3} operatorname{COOH}, boldsymbol{Delta}} boldsymbol{C} )
In this reaction, the end product ( C ) is:
A. salicylaldehyde
B. salicylic acid
c. phenyl acetate
D. aspirin
12
13 Which one of the following reagents can not be used to oxidise primary alcohols to aldehydes?
( mathbf{A} cdot C r O_{3} ) in anhydrous medium
B. ( K M n O_{4} ) in acidic medium
c. Pyridinium chlorochromate
D. Heat in presence of Cu at 573 k
12
14 Which one of the following reaction conditions are used for preparing diethyl ether from ethyl alcohol?
A. ( H I / 200^{circ} C )
в. Сопс.Н( _{2} S O_{4} / 140^{circ} C )
c. ( N a O H / 70^{circ} C )
D. ( N a O C_{2} H_{5} / 27^{circ} C )
12
15 138. Suggest the product of following reaction:
o
OH
01 Home
1. Hg(OAC)2
2. NaBHA
OH
OHgOAC
(a)
(b)
OH
(c)
(d) All of these
12
16 Question 28. Write the equation of the reaction of hydrogen iodide
with: (i) l-propoxypropane (ii) methoxybenzene and (iii) benzyl ethyl
ether.
Alcohols and alkyl or aryl iodides are formed. Generally primary halide
(or lower halide) is formed in this reaction.
12
17 The most suitable method of separation of equal ( (1: 1) ) mixture of ortho-
nitrophenol and para-nitrophenol is:
A. Crystallisation
B. Distillation
c. Sublimation
D. chromatography
12
18 toppr
Q Type your question
( A )
3
( c )
( D )
12
19 In the preparation of alkene from
alcohol using ( A l_{2} O_{3} ) which is effective
factor?
A . Porosity of ( A l_{2} O_{3} )
B. Temperature
c. concentration
D. surface area of ( A l_{2} O_{3} )
12
20 The ether when treated with ( H )
produces
( bigcircrangle-_{0}-mathrm{cH}_{2}-langlebigcircrangle )
( bigcircrangle-mathrm{c} mathrm{H}_{2} )
( bigcircrangle-mathrm{cH}_{2} mathrm{o} )
( bigcircrangle )
( sqrt{0}-0 )
12
21 The compound (s) used as an antifreeze in radiators of automobiles is/are?
This question has multiple correct options
A. methyl alcohol
B. ethyl alcohol
c. ethyl alcohol + water
D. methyl alcohol + water
12
22 Which of the following statements is
wrong about hydroboration oxidation?
A. The reaction proceeds through cyclic intermediate transition state and syn addition takes place
B. Reagent diborane in ether (THF) exists as borane- THF complex
C . Diborane in polar solvent ( left(H_{2} Oright) ) exists as
( left[B H_{2}right]^{oplus}left[B H_{4}right]^{ominus} )
D. The reaction proceed through ionic intermediate and syn addition takes place.
12
23 Q Type your question
The compound A is:
( A )
3
( c )
( D )
12
24 ( boldsymbol{R}-boldsymbol{O H} stackrel{boldsymbol{P B r}_{3}}{boldsymbol{A}} )
( boldsymbol{B} stackrel{boldsymbol{H C H O}}{longrightarrow} boldsymbol{C} stackrel{boldsymbol{H}^{+} / boldsymbol{H}_{2} boldsymbol{O}}{longrightarrow} boldsymbol{D} )
What are ( A, B, C & D ) respectively?
( mathbf{A} cdot R-B r, R-B r-M g, R-C H_{2} M g-B r, R- )
( C H_{2} C H O )
B . ( R-B r, R-M g-B r, R-C H_{2}-O-M g-B r, R- )
( C H_{2} C H O )
( mathbf{c} cdot R-B r, R-M g-B r, R-C H_{2}-O-M g-B r, R- )
( C H_{2} O H )
D. ( R-B r, R-M g-B r, R-C H_{2}-B r, R-C H_{2} O H )
12
25 What will be the products in following
reactions?
( (mathbf{I}) )
( (mathbf{I I}) )
( (mathbf{I I I}) )
( A )
B.
( c )
D. None
12
26 Consider the following dehydration of alcohol
OH
H2PO4
Heat
The important dehydration product(s) is/are
12
27 Conversion of glucose to ethyl alcohol can be carried by:
A. lactose
B. invertase
c. zymase
D. diastase
12
28 ( C_{6} H_{5} C l frac{N a O H}{text {High temperature and pressure}} )
( boldsymbol{A} stackrel{boldsymbol{H C l}}{longrightarrow} boldsymbol{B} )
Identify ( A ) and ( B ) in the above reaction.
12
29 Arrange the following in increasing order of boiling points 12
30 Which one of the following is a secondary alcohol?
A. 2-methyl-2-propanol
B. 1-propanol
c. 1-butanol
D. 2-pentanol
12
31 Which row correctly shows a primary,
secondary and a tertiary alcohol?
3
( r )
)
12
32 ( boldsymbol{Y} stackrel{boldsymbol{N a}}{longleftrightarrow} boldsymbol{X} stackrel{boldsymbol{c o n c . H}_{2} boldsymbol{S O}_{4}, boldsymbol{4 1 3} boldsymbol{K}}{longrightarrow}left(boldsymbol{C}_{2} boldsymbol{H}_{5}right)_{2} boldsymbol{O} )
What are ( X ) and ( Y ) in the above reactions
( ? )
( mathbf{A} cdot X-H_{3} C O H, Y-H_{3} C O N a )
B ( cdot X-C_{4} H_{9} O H, Y-C_{4} H_{9} O N a )
( mathbf{c} cdot X-C_{2} H_{5} O H, Y-C_{2} H_{5} O N a )
D. ( X-C_{3} H_{7} O H, Y-C_{3} H_{7} O N a )
12
33 Question 14. What is tincture of iodine? What is its use?
Cal..tian It is a 2:1. to colution of iodine (2 to 3 ner cant) n
12
34 First member of ether series on reaction
with sodium and liquified ammonia
gives
A. methanol+methane
B. ethane+methanol
c. ethanol
D. ethane
12
35 Identify the major product ( X ) obtained in
the following reaction.
( mathbf{2}, mathbf{3}- ) dimethyl butan ( -mathbf{2}- )
( boldsymbol{o l} stackrel{boldsymbol{C o n c . H}_{2} boldsymbol{S O}_{4}}{longrightarrow} boldsymbol{X} )
( mathbf{A} )
B.
( c )
D.
12
36 Phenol is an organic compound even though it is soluble in water due to the
presence of:
A. ionic bonding
B. covalent bonding
c. hydrogen bonding
D. coordinate bonding
12
37 Phenol is more acidic than:
( A )
B.
( mathbf{c} cdot C_{2} H_{2} )
D. Both (A) and (C)
12
38 Statement-1: Alcoholic fermentation
involves conversion of sugar into
ethanol by the action of yeast. Statement-2: Fermentation involves the
liberation of ( C O_{2} ) gas
A. Statement-1 is True, Statement-2 is True; statementis a correct explanation for statement- –
B. Statement-1 is True, Statement-2 is True; statementis NOT a correct explanation for statement-1
c. statement- – is True, statement-2 is False
D. Statement-1 is False, statement-2 is True
12
39 The acidic hydrolysis of ether (X) shown
above is fastest when:
A. one phenyl group is replaced by a methyl group
B. one phenyl group is replaced by a para-methoxyphenyl group
c. two phenyl groups is replaced by two para methoxyphenyl groups
D. no structural change is made to X.
12
40 Fusion of the sulfonic acids with
sodium hydroxide initially gives the with the phenol being released by the subsequent addition of mineral acid.
A. phenate
B. sodium propanol
c. phenone
D. none of above
12
41 Explain the Acidic nature of phenols and compare with that of alcohols. 12
42 Hydrogen chloride and ( S O_{2} ) are the side products in the reaction of ethanol with thionyl chloride. Which of the following is the main product in this reaction?
A. ( C_{2} H_{5} O C_{2} H_{5} )
B. ( C_{2} H_{6} )
c. ( C H_{3} C l )
D ( cdot C_{2} H_{5} C l )
12
43 Give the IUPAC name of the following compound 12
44 ( sigma_{infty}^{text {and }} )
0
0
0
12
45 Total number of methyl group present in
product ( boldsymbol{A} ) is:
[
underset{mathrm{Me}}{mathrm{N}}_{mathrm{O}}^{mathrm{OMe}}+2 bigwedge_{mathrm{Me}} widehat{mathrm{MgBr}} frac{mathrm{H}_{3} mathrm{O}^{oplus}}{longrightarrow} mathrm{A}
]
12
46 Primary alcohols can be prepared from alkenes by:
A. mercuration and demercuration of alkenes
B. direct hydration of alkenes
c. hydroboration of alkenes
D. all of the above
12
47 Which of the following products is
formed in good yield by the reduction of
methyl 4-oxo-hexanoate ( (M) ) with
Li ( A l H_{4} ) in ether?
A. Methyl 4-hydroxyhexanoate
B. 1,4-Hexanediol
c. 4-Hydroxyhexanal
D. 6 -Methoxy-3-hexanone
12
48 Which of the following isomers is more
volatile: ( o ) -nitrophenol or ( p ) -nitrophenol?
12
49 Identify the correct option(s) related
with the physical properties of the unknown compounds [X] and [Y] formed as major and minor product
respectively in the given reaction.
This question has multiple correct options
A. Water solubility of [Y] is greater than [X]
B. Boiling point of [Y] is greater than [X]
C. Melting point of [Y] is greater than [X]
D. ( [x] ) is more volatile than ( [Y] )
12
50 Propene on hydration gives
A. propan-1-ol
B. propan-2-ol
c. propanal
D. methoxy ethane
12
51 Explain the mechanism of alkaline
hydrolysis of tert-butyl bromide with energy profile diagram.
Define carbolic acid
How carbolic acid is prepared from benzene sulphonic acid?
12
52 I. Ethanol
II. Acetic acid
III. Phenol
IV. Acetonitrile
The acidity of compounds I-IV in water follows the order:
A. ( I V<I<I I I<I I )
в. ( I<I I<I I I<I V )
c. ( I V<I<I I<I I I )
D. ( I V<I I I<I<I I )
12
53 In the following reaction, trace the
position of isotopic ( ^{18} boldsymbol{O}: )
[
begin{array}{c}
mathbf{0} \
mathbf{c H}_{3}-mathbf{C}-mathbf{0}-mathbf{H}+mathbf{C H}_{3} mathbf{C H}_{2}-mathbf{0}-mathbf{H}
end{array} longrightarrow mathbf{C H}_{3}-mathbf{I}-mathbf{O}-mathbf{C H}_{2} mathbf{C H}_{3}+mathbf{H}_{2} mathbf{O}
]
( mathbf{A} cdot H_{2} O^{18} )
B.
[
begin{array}{c}
C H_{3}-C_{|}-O C H_{2} C H_{3} \
^{18} O
end{array}
]
( mathbf{c} )
[
begin{array}{c}
C H_{3}-underset{| atop D}{C}-^{18} O C H_{2} C H_{3} \
O
end{array}
]
D. can be in all three above
12
54 A hydrocarbon ( ^{prime} boldsymbol{A}^{prime}left(boldsymbol{C}_{3} boldsymbol{H}_{8}right) ) on treatment
with chlorine in presence of sunlight
yielded compounds ‘ ( B^{prime} ) as major
product. Reaction of ( ^{prime} B^{prime} ) with aqueous
KOH gave ( ^{prime} C^{prime} ) which on treatment with
concentrated ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} ) yielded ( ^{prime} boldsymbol{D}^{prime} )
Hydrogenation of ( ^{prime} D^{prime} ) gave back ( ^{prime} A^{prime} ). The sequence of reactions involved in above conversion is:
A. Substitution, Substitution, Addition, Dehydration
B. Substitution, Substitution, Dehydration, Addition
c. substitution, Dehydration, Addition, Addition
D. Addition, Substitution, Dehydration, Substitution
12
55 A compound ( C_{6} H_{14} O_{2} ) has two tertiary
alcoholic groups. The IUPAC name of compound is:
A. 2,3 – dimethyl – 1,2 – butanediol
B. 3,3 – dimethyl- 1,2 – butanediol
c. 2,3 – dimethyl- 2,3 – butanediol
D. 2 – methyl – 2,3 – pentanediol
12
56 95
80
( 0 % )
99
90
12
57 Which of the following are the products shown by the reaction of methoxyethane with ( boldsymbol{H} boldsymbol{I} ) ?
( mathbf{A} cdot C_{2} H_{5} I+C H_{3} O H )
в. ( C H_{3} I+H_{2} O )
c. ( C_{2} H_{5} O H+H_{2} O )
D. ( C_{2} H_{5} O H+C H_{3} I )
12
58 111. Major products of the following reaction:
H
(1) BH; THE
(ii) H2O2, OH
CH;
| OH
Н
CH3
ОН
CHY
(d) All
12
59 An organic compound used as a thermometric liquid is :
A. ethene
B. acetic acid
c. ethyne
D. ethanol
12
60 Write the IUPAC name of the compound
in the picture.
12
61 Question 22. Give reason for the higher point of ethanol in comparison
to methoxymethane.
Presence of intermolecular H bonding in ethanol, but not in ether.
12
62 Q. 39 Suggest a route to prepare ethyl hydrogensulphate
(CH3 -CH2-050,-OH) starting from ethanol (CH3OH).
12
63 Which of the following statements are
correct?
i) Ordinary ethyl alcohol is known as grain alcohol.
ii) Methylated spirit contains rectified spirit
iii) Absolute alcohol is ( 100 % ) ethanol
iv) Rectified spirit is ( 100 % ) ethanol.
A . ii, iii, iv
B. ii, ii i
D. All are correct
12
64 ( ;(b)-(v) ) (d) ( – ) (iii) ( ;(e)- ) (i)
( A cdot(a)-(i i) )
; (c) – (iv)
( (n) )
( (mathrm{i}) ) (b) ( -(v) ;(c)-(text { iii) } ;(d)-(i v) ;(e)-(i) )
(b) ( -(i v) ;(c)-(v) ;(d)-(i i i) ;(e)-(i i) ) :
-1
i)
(iii) ( (b)-(v) ) ( (c)- ) in (d) ( :(e)-(i) )
( D cdot(a) )
– (ii) :
12
65 Question 13. Show how will you synthesise :
(i) l-phenylethanol form a suitable alkene.
(ü) Cyclohexylmethanol using an alkyl halide by an SN2 reaction.
(iii) pentan-1-ol using a suitable alkyl halide?
(1) Acidic hydration of ethenyl benzene.
(ii) Alkaline hydrolysis of cyclohexyl methyl bromide.
(iii) Alkaline hydrolysis of 1-bromopentane.
12
66 Assertion: ( C a C l_{2} ) can’t be used for
drying ethyl alcohol
Reason: Calcium chloride can form an
addition compound with ethyl alcohol
A. Both Assertion and Reason are true and Reason is the correct explanation to Assertion
B. Both Assertion and Reason are true and Reason is not the correct explanation to Assertion
c. Assertion is true but Reason is false
D. Assertion is false but Reason is true
12
67 ( boldsymbol{C H}_{3} boldsymbol{O H} stackrel{boldsymbol{P}+boldsymbol{I}_{2}}{longrightarrow} boldsymbol{A} frac{M boldsymbol{g} / text {dryether}}{boldsymbol{}} )
( boldsymbol{B} stackrel{boldsymbol{H C H O}}{longrightarrow} boldsymbol{C} stackrel{boldsymbol{H}^{+} / boldsymbol{H}_{2} boldsymbol{O}}{longrightarrow} boldsymbol{D} )
What are ( B & D ) respectively?
A. ( C H_{3} M g I, C H_{3} C H O )
B. ( C H_{3} M g I, C H_{3} C H_{2} O H )
c. ( C H_{3} M g I, C H_{3} C O O H )
D. ( C H_{3} M g I, C H_{3} C O C H_{3} )
12
68 Arrange the following compounds in increasing order of boiling points. Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol
A. Propan-1-ol, butan-2-ol, butan-1-ol, pentan-1-ol
B. Propan-1-ol, butan-1-ol,butan-2-ol, pentan-1-o
c. Pentan-1-ol, butan-2-ol, butan-1-ol, propan-1-ol
D. Pentan-1-ol, butan-1-01, butan-2-ol, propan-1-o
12
69 Diethyl ether reacts with ( P C l_{5} ) to form:
This question has multiple correct options
A. ethyl chloride
B. phosphorous oxy trichloride
c. 1,2 -dichloroethane
D. ethene
12
70 When 2 -ethylanthraquinol dissolved in a mixture of benzene and cyclohexanol is oxidized, the product is:
A. Ethanol
B. Hydrogen peroxide
c. Anthracene
D. None of these
12
71 topp
Q rpesour
12
72 The compound which gives the most stable carbonium ion on dehydration is:
( A )
B.
c. ( C H_{3} C H_{2} C H_{2} C H_{2} O H )
D.
12
73 What is the common name of methyl alcohol?
A. wine
B. Wood spirit
c. Dilute acid
D. None of the above
12
74 Given are cyclohexanol ( (I), ) acetic acid ( (I I) 2,4,6- ) trinitrophenol ( (I I I) ) and phenol ( (I V) . ) In these the order of decreasing acidic character will be:
A ( , I I I>I I>I V>I )
( I )
В. ( I I>I I I>I>I V )
c. ( I I>I I I>I V>I )
D. ( I I I>I V>I I>I )
12
75 Draw products formed in each of the
following reaction and indicate
stereochemistry.
( (a) )
( (b) )
( frac{(mathrm{i}) mathrm{HC} equiv mathrm{C}^{-}}{(mathrm{ii}) mathrm{H}_{2} mathrm{O}} )
( (c) )
( (d) )
( frac{(mathrm{i}) mathrm{HC} equiv mathrm{C}^{-}}{(mathrm{ii}) mathrm{H}_{2} mathrm{O}} )
12
76 A vicinal diol has two alcoholic groups
present:
A. on the same carbon
B. on adjacent carbon atoms
c. anywhere along the carbon chain
D. none of the above
12
77 Assertion
The reaction of alcohols with ( S O C l_{2} ) is
catalysed by the presence of a tertiary
( operatorname{amine}left(boldsymbol{R}_{3} boldsymbol{N}right) )
Reason
Tertiary amine promote the reaction by reacting with the by-product ( boldsymbol{H} boldsymbol{C l} )
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
78 The order of reactivity of alcohols towards hydrogen halide is :
A ( cdot ) benzyl( >3^{0}>2^{0}>1^{0} )
В. ( 3^{0}> ) benzyl ( >2^{0}>1^{0} )
c. ( 3^{0}>2^{0}>1^{0}> ) benzyl
D. ( 3^{0}>2^{0}> ) benz ( y l>1^{0} )
12
79 Assertion
Ethane is a gas while ethyl alcohol is a
İiquid.
Reason
Ethyl alcohol has greater molecular
mass than ethane.
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
80 Hydrogen chloride and ( S O_{2} ) are the side products in the reaction of ethanol with thionyl chloride. Which of the following is main product in this reaction?
A. ( C_{2} H_{5}-O-C_{2} H_{5} )
в. ( C_{2} H_{6} )
c. ( C H_{3} C l )
D. ( C_{2} H_{5} C l )
12
81 ( boldsymbol{C H}_{2} boldsymbol{O H C H O H C H}_{2} boldsymbol{O H} ) is glycerol.
It doesn’t contain
alcoholic group.
A . ( 1^{circ} )
B . ( 2^{text {? }} )
( c cdot 3^{0} )
D. both ( 1^{0} & 2^{0} )
12
82 Write the process of making ethyl acetate by esterification with equation. 12
83 Controlled oxidation of methanol gives?
A. methanoic acid
B. methanal
c. carbon dioxide and water
D. methane
12
84 Assertion
Formation of petroleum occurs from hydrocarbon by the process called pyrolysis.
Reason
Hydrocarbon pyrolysis involves
exothermic reactions.
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
85 Alcohols containing only up to carbon atoms are
completely miscible with water
A. three
B. four
c. five
D. two
12
86 Which of the following is not a good method to prepare tert-butyl methyl ether?
A ( cdotleft(C H_{3}right)_{3} C O^{-} N a^{+}+C H_{3} B r rightarrow )
B. ( left(C H_{3}right)_{3} C B r+C H_{3} O^{-} N a rightarrow )
C. ( H_{2} C=Cleft(C H_{3}right)_{2}+C H_{3} O H stackrel{H^{+}}{longrightarrow} )
D. All of these
12
87 Q Type your question
Why
( mathbf{A} )
( B )
( mathbf{C} )
( D )
12
88 ( frac{8-i}{8} ) 12
89 Correct order of boiling points among following is:
( boldsymbol{C H}_{3}left(boldsymbol{C H}_{2}right)_{3} boldsymbol{C H}_{3}, quad boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{O C}_{2} boldsymbol{H}_{5} )
( (boldsymbol{X}) )
( (Y) )
( A cdot x>Y>z )
B. ( Y>X>Z )
( c cdot z>x>r )
D. ( z>Y>x )
12
90 Give the IUPAC name of the following compound 12
91 Among the three isomers of the nitrophenol, the one that is least soluble in water is:
A. m-nitrophenol
B. o-nitrophenol
c. p-nitrophenol
D. none of these
12
92 Which of the following statements is not correctly showing the trend of the properties mentioned?
A. ( C H_{3} C H_{2} O H>C H_{3} C H_{2} C H_{2} O H> )
( C H_{3} C H_{2} C H_{2} C H_{2} O H )
B . ( C H_{3} C H_{2} O H>C H_{3} C H_{2} C H_{2} O H> )
( C H_{3} C H_{2} C H_{2} C H_{2} O H )
(Boilingpoint)
c. ( C H_{3} C H_{2} C H_{2} O H>C H_{3} C H-C H_{2} O H> )
( C H_{3} )
( C H_{3} )
( C H_{3}-C_{I}^{prime}-O H )
Boiling point
D. ( quad C H_{3} )
[
C H_{3}-C_{C H_{3}}^{L}-O H<C H_{3} C H-C H_{2} O H
]
( C H_{3} C H_{2} C H_{C} H_{2} O H )
12
93 Describe the laboratory method for preparation of diethyl ether and write
the reaction with ( H_{2} O ) and cold ( H I )
12
94 Maximum boiling point would be shown by:
A. ( C H_{3}-O-C H_{3} )
в. ( C_{2} H_{5}-O-C_{2} H_{5} )
c. ( C H_{3}-C H_{2}-C H_{2}-O H )
D. ( left(C H_{3}right)_{2} C H-O H )
12
95 Q Type your question_
Scheme -1
Scheme -2
( mathbf{A} )
( B )
( C )
D.
12
96 How can the following compounds be obtained from phenol?
(i) ( 2,4,6- ) Tribromophenol
( (i i) 2,4,6 )
Trinitropheno
(iii) Benzene
(iv) Ortho
and para-cresol.
12
97 ( _{mathrm{H}_{3} mathrm{C}}^{mathrm{O}} ) 山 ( _{mathrm{CH}_{3}} frac{_{mathrm{l}, mathrm{NaBH}_{4}}}{2 . mathrm{D}_{3} mathrm{o}^{+}}>mathrm{X} )
( mathbf{X}=mathbf{Y}=quad underset{mathbf{H}_{3} mathbf{C}}{mathbf{C}} stackrel{mathbf{D}}{mathbf{C}}_{mathbf{C H}_{3}}^{text {oD }} )
( mathbf{X}=mathbf{Y}=underbrace{mathbf{H}}_{mathbf{H}_{3} mathbf{C}}^{mathbf{O} mathbf{H}}_{mathbf{C H}_{3}} )
12
98 Ethers have lower boiling points than their corresponding isomeric alcohols
because of?
A. hydrogen bonding in alcohols that is absent in ethers due to low polarity
B. hydrogen bonding in ethers due to high polarity
c. insolubility of ethers in water due to less polarity
D. inertness of ethers as compared to alcohols.
12
99 The relative order of esterification of
alcohols is :-
A. ( 1<22>3 )
c. ( 1>3>2 )
D. ( 1<3<2 )
12
100 Which one is the general formula of
monohydric alcohols?
A. ( C_{n} H_{2 n} O H )
в. ( C_{n+1} H_{2 n} O H )
c. ( C_{2 n} H_{2 n+2} ) OH
D. ( C_{n} H_{2 n+1} O H )
12
101 ( x ) 12
102 In an aqueous solution at ( 25^{circ} mathrm{C} ) has
twice as many ( O H^{-} ) as pure water its
( p O H ) will be:
( mathbf{A} cdot 6.699 )
B. 7.307
( c cdot 7 )
D. 6.98
12
103 How is phenol (carbolic acid) prepared from Rasching’s process? 12
104 Unlike phenol, 2,4-dinitrophenol is
soluble in sodium carbonate solution in
water because?
A. presence of two – ( N O_{2} ) groups in the ring makes 2,4 dinitrophenol a stronger acid than phenol.
B. presence of two – ( N O_{2} ) groups in the ring makes 2,4 dinitrophenol a weaker acid than phenol.
C. presence of two ( -N O_{2} ) groups make the hydrogen bonding easier, making 2, 4-dinitrophenol soluble
D. nitro group reacts with ( N a_{2} C O_{3} ) while ( -O H ) group does not
12
105 Name the reaction 12
106 Question 14. In Kolbe’s reaction, instead of phenol, phenoxide ion is
treated with carbon dioxide. Why?
SolutionDhe
12
107 A student prepared methanol in the laboratory by the addition of ( 266 g ) of ( C O ) and ( 60 g ) of ( H_{2}, ) as shown below. ( boldsymbol{C O}(boldsymbol{g})+boldsymbol{H}_{2}(boldsymbol{g}) rightarrow boldsymbol{C} boldsymbol{H}_{3} boldsymbol{O} boldsymbol{H}(boldsymbol{l}) )
(a) Find out the limiting reagent
(b) Calculate the amount of methanol produced and the amount of excess reactant remaining after the completion of the reaction.
12
108 Increasing order of acidic strength among p=methoxy phenyl (I), p-methyl phenol (II) and p-nitrophenol (III) is:
A . III, ।, ॥
B. ॥, ।, ॥।
c. ॥॥, ॥।,
D. I, II, III
12
109 Give the equations of the following reaction(s):
Oxidation of Propan-1-ol with alkaline
( K M n O_{4} ) solution
12
110 Assertion
Rate of reaction of alkyl halide in Williamson’s synthesis reaction is
( mathbf{1}^{circ} boldsymbol{R} boldsymbol{X}>mathbf{2}^{circ} boldsymbol{R} boldsymbol{X}>mathbf{3}^{circ} boldsymbol{R} boldsymbol{X} )
Reason
It is a type of bimolecular substitution
reaction ( left(boldsymbol{S}_{N} mathbf{2}right) )
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
111 Give chemical equations of the
following conversions:
(i) Diethyl ether from Ethanol
(ii) Ethanol from Diethyl ether
(iii) Ethyl acetate from Ethanol
(iv) Ethanol from Glucose
12
112 Which amoung the following has maximum boiling point?
A ( . C H_{3}-C H_{2}-left(C H_{2}right)-C H_{2} O H )
B. ( C H_{3}-C H_{2}-C H_{2}-C_{}^{C H}-C H_{3} )
( mathbf{c} . C H_{3}-C H_{3}-C H-C H_{2}-C H_{3} )
( _{O H} )
D.
[
begin{array}{l}C H_{3}-C_{3} \ _{O H}^{-} C-C H_{2}-C H_{3}end{array}
]
OH
12
113 How is 1-propoxypropane synthesised from propan-1-ol? Write mechanism of
this reaction.
12
114 ( frac{ }{2} )
8
( frac{d}{d} )
( d )
12
115 Which one is the general formula of
monohydric alcohols?
A. ( C_{n} H_{2 n-2} O H )
в. ( C_{n+1} H_{2 n} O H )
c. ( C_{2 n} H_{2 n+2} 2 O H )
D. ( C_{n} H_{2 n} O H )
12
116 ( = ) 12
117 Which is less acidic than phenol?
This question has multiple correct options
A. 2,4,6-Trimethyl phenol
в. ( C H_{3} ) ОН
c. p-Nitropheno
D. ( H_{2} O )
12
118 Which of the following is most soluble in water?
A. n-butyl alcohol
B. Iso-butyl alcohol
c. Tertiary butyl alcohol
D. None of the above
12
119 In the synthesis of n-alkyl tert-alkyl ether by Williamson’s method the reactants used are:
B. ( 1^{circ} R X ) and ( 3^{circ} )RONa
( mathrm{c} cdot 3^{circ} R X ) and ( 3^{circ} R O N a )
D. ( 1^{circ} R X ) and ( 1^{circ} R O N a )
12
120 Which alcohol is prepared from water gas?
A. ( C_{2} H_{5} O H )
в. ( C H_{3} C H_{2} C H_{2} O H )
( mathbf{c} cdot C H_{3} O H )
D. ( C_{6} H_{5} C H_{2} O H )
12
121 Which of the following is phenol?
A. Cresol
B. Catechol
c. Resorcinol
D. All of these
12
122 Find the product of:
( boldsymbol{C H}_{3} boldsymbol{C H}_{2}-boldsymbol{O}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{O}- )
( boldsymbol{C H}_{2}-boldsymbol{C}_{boldsymbol{6}} boldsymbol{H}_{boldsymbol{5}}+underset{(boldsymbol{e} boldsymbol{x} boldsymbol{c} boldsymbol{e} boldsymbol{s} boldsymbol{s})} rightarrow ? )
( mathbf{A} cdot O H-C H_{2} C H_{2} O H, C_{6} H_{5} C H_{2}-I, C H_{3} C H_{2}-I )
B ( cdot C_{6} H_{5} C H_{2}-O H, C H_{3} C H_{2}-I, I-C H_{2} C H_{2}-O H )
( mathbf{c} cdot I-C H_{2} C H_{2}-I, C_{6} H_{5} C H_{2}-I, C H_{3} C H_{2}-O H )
D. ( H O-C H_{2} C H_{2}-O H, C_{6} H_{5} C H_{2}-I, C H_{3} C H_{2}- )
( O H )
12
123 Identify correct acidic strength order in
the following compounds:
A . i > ii > ii
B. ii> sii’s
12
124 Aliphatic ethers are purified by shaking with a solution of ferrous salt to remove
which are formed on
prolonged standing in contact with
water
A. aromatic ethers
B. aliphatic alcohols
c. peroxides
D. aldehydes
12
125 Ethanol is converted into ethoxy ethane:
A. by heating excess of ethanol with conc. ( H_{2} S O_{4} ) at ( 140^{circ} ) ( c )
B. by heating Ethanol with excess of conc. ( H_{2} S O_{4} ) at 413 ( k )
C. by treating with conc. ( H_{2} S O_{4} ) at room temperature
D. by treating with conc. ( H_{2} S O_{4} ) at ( 273 mathrm{K} )
12
126 The process involved in the formation of
product in the following reaction is called as:
A. hydrolysis
B. dehydration
c. decomposition
D. none
12
127 Which of the following alcohols is the least soluble in water?
A. Ethanol
B. 1-Propanol
c. 1-Butanol
D. 1-Pentanol
12
128 Which of the following product are correct?
uestion has multiple corrrect option
12
129 In the given reaction, ( [boldsymbol{X}] ) and ( [boldsymbol{Y}] ) are:
4
and
в.
and
( c )
( D )
12
130 Explain the preparation of phenol from
cumene.
12
131 Ethyl alcohol is manufactured by the fermentation of :
A. molasses
B. starch
c. both A and B
D. none of the above
12
132 (a) Write IUPAC names of the following
compounds:
(i) ( boldsymbol{C H}_{2}=boldsymbol{C H}-boldsymbol{C H}_{2}-boldsymbol{O H} )
(ii) ( boldsymbol{C H}_{2}-boldsymbol{C H}-boldsymbol{C H}_{2} )
( begin{array}{ccc}1 & 1 & 1 \ o_{H} & o_{H} & o_{H}end{array} )
(b) Write equations of the following chemical reactions:
(i) Phenol reacts with ( B r_{2} ) in
presence of ( boldsymbol{C S}_{mathbf{2}} )
(ii) Ethanol is heated at ( 573 mathrm{K} ) in
presence of Cu.
12
133 Phenol on sulphonation at ( 100^{circ} mathrm{C} ) gives:
A. o-phenol sulphonic acid
B. p-phenol sulphonic acid
c. m-phenol sulphonic acid
D. o- and p-phenol sulphonic acid
12
134 Lower alcohols are more soluble in
water than higher alcohols.
A. True
B. False
12
135 Write the IUPAC name of the given
compound ( boldsymbol{H}-begin{array}{ccccc}boldsymbol{H} & boldsymbol{H} & boldsymbol{H} & boldsymbol{H} & boldsymbol{H} \ boldsymbol{C} & – & boldsymbol{C} & -boldsymbol{C} & – & boldsymbol{C} & -boldsymbol{C} \ boldsymbol{H} & boldsymbol{O} boldsymbol{H} & boldsymbol{H} & boldsymbol{C H}_{3} & boldsymbol{H}end{array}-boldsymbol{H} )
12
136 ( frac{x}{8} ) 12
137 Illustrate with examples the limitations
of Williamson’s synthesis for the preparation of certain types of ethers.
12
138 The correct acidic order of the following
is
I. Phenol II. 4-methylphenol
III. 4-nitrophenol
B. ॥I>1>11
c. ॥>॥ᅵ>।
12
139 The preparation of sodium benzenesulphonate during the preparation of benzene sulphonic acid
involves:
A. dehydration
B. hydrolysis
c. hydration
D. sulfonation
12
140 The products (A) and (B) are:
his question has multiple correct options
( A )
в.
( c )
Dal
12
141 The IUPAC name of sec. butyl alcohol is:
A. 1-butanol
B. 2-butanol
c. 2-methyl-1-butanol
D. 2-methyl-2-butanol
12
142 In which one of the following reagents ( boldsymbol{O}-boldsymbol{H} ) bond fission in alcohol can not
take place?
A . Na a
в. ( C H_{3} ) СООН
c. ( C H_{3} M g B r )
D. ( P C l_{5} )
12
143 Question 18. Write the mechanism of the reaction of Hl with methoxy
benzene.
12
144 Which of the following reaction is
feasible for the preparation of 1 -propoxy
2 methyl propane?
This question has multiple correct options
A. Williamson’s synthesis of
( left(M e_{2} C H C H_{2} O N a+M e C H_{2} C H_{2} C lright) )
B. Williamson’s synthesis of
( left(M e_{2} C H C H_{2} C l+M e C H_{2} C H_{2} O N aright) )
C. Alkoxymercuration-demercuration of
( left(M e_{2} C=C H_{2}+M e C H_{2} C H_{2} O Hright) )
D. Alkoxy mercuration demercuration of propene with ( M e_{2} C H C H_{2} O H )
12
145 The IUPAC name of the following compound is dodec( -10-e n-4- )
( boldsymbol{y} boldsymbol{n}-boldsymbol{3}, boldsymbol{8}-boldsymbol{d} boldsymbol{i} boldsymbol{o l} )
A . True
B. False
12
146 Which of the following is tertiary alcohol?
A. Ethyl alcohol
B. Isopropyl alcohol
c. Neopentyl alcohol
D. 2-methyl 2-propanol
12
147 Phenol reacts with ( P C l_{5} ), the main
product is:
( A )
[
mathrm{Ph}-mathrm{O}-underbrace{mathrm{O}}_{mathrm{Cl}}^{mathrm{l}}-mathrm{Cl}
]
B.
[
mathrm{Ph}-mathrm{O}-underset{mathrm{C}}{mathrm{P}}^{mathrm{O}}-mathrm{O}-mathrm{Ph}
]
( c )
[
mathrm{Ph}–mathrm{O}-begin{array}{c}
mathrm{O} \
mathrm{P} \
mathrm{OPh}
end{array}-mathrm{O}-mathrm{Ph}_{mathrm{h}}
]
D. none of thes
12
148 Which is the major product obtained by hydrolysis of compound formed by
reaction between
formaldehyde and ethyl magnesium bromide?
A. Ethanol
в. Propan ( -2- ) ol
c. Propan ( -1- ) ol
D. ( 2- ) Methyl ( – ) propan ( -2- ) ol
12
149 ( boldsymbol{C H}_{3} boldsymbol{C H O} stackrel{text {dil.NaOH}}{longrightarrow} boldsymbol{A} stackrel{boldsymbol{Delta}, text {dehydration}}{longrightarrow} )
( boldsymbol{B} stackrel{boldsymbol{N i} / boldsymbol{H}_{2}}{longrightarrow} boldsymbol{C} stackrel{boldsymbol{N i} / boldsymbol{H}_{2}}{longrightarrow} boldsymbol{D} )
In the above sequence of reactions,
compound D is:
( mathbf{A} cdot C H_{3} C H_{2} C H_{2} C H_{2} O H )
в. ( C H_{3} C H_{2} C H_{2} C H O )
c. O
( C H_{3} C H_{2} C H_{2} C H-C H_{3} )
12
150 ( mathbf{3} C_{2} boldsymbol{H}_{5} boldsymbol{O} boldsymbol{H}+boldsymbol{P} boldsymbol{C l}_{3} rightarrow mathbf{3} boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{C l}+boldsymbol{X} )
Where ( X ) is an oxyacid of phosphorus.
( boldsymbol{X} ) is:
A ( . H_{3} P O_{4} )
в. ( H_{3} P O_{3} )
c. ( H_{3} P O_{2} )
D. ( H P O )
12
151 Which reducing agent is used for the following conversion?
( boldsymbol{R} boldsymbol{C O O H} rightarrow boldsymbol{R} boldsymbol{C H}_{2} boldsymbol{O H} )
A ( . ) Li ( A l H_{4} )
в. ( N a B H_{4} )
( mathbf{c} cdot K_{2} C r_{2} O_{7} )
D. ( K M n O_{4} )
12
152 The given alcohol is (primary/ secondary) alcohol. (If your answer is primary type 1 else 2)
[
mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{OH}
]
12
153 Consider the following reaction. The product (A) is:
( A )
в.
( c )
( D )
12
154 The given IUPAC name is 1,1 dimethylcyclohexane-3-ol
Is the above statement correct?
12
155 Which of the following alcohols is used as a beverage?
A. Propanol
B. 2-butanol
c. Methanol
D. Ethanol
12
156 A compound containing two ( -O H ) groups attached to one carbon atom is
unstable but which one of the following is stable?
( A )
в.
( c )
D. Al
12
157 lowing compounds (i) and (ii) will not react with a
Q. 50 Which of the following compounds (i) and (11) W
mixture of NaBr and H2SO4. Explain why?
OH
() CH,CH,CH,OH
the bond and hence
12
158 Question 4. Name the factors responsible for the solubility of alcohols
in water.
12
159 Question 16. Explain why p-nitrophenol is more acidic than phenolp
Solartion
12
160 Treatment of conc. ( boldsymbol{H} boldsymbol{I} ) with ethyl ether
will give the product:
( mathbf{A} cdot C_{2} H_{5} O H )
в. ( C_{2} H_{5} I )
c. Both the above
D. None of the above
12
161 The products ( (A) ) and ( (B) ) are :
( A )
( B )
C. both A and B
D. none of the above
12
162 Assertion
Ethers are regarded as a hydride of alcohols.
Reason
Ethers may be obtained by elimination of water molecule from two alcohol
molecules.
A. If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
B. If both Assertion and Reason are correct. but Reason is not the correct explanation of Assertion
C. If Assertion is correct but Reason is incorrect
D. If Assertion is incorrect but Reason is correct.
12
163 Phenol is less acidic than:
A. ( o ) -nitrophenol
B. ( p ) -methoxy phenol
c. 2 -methylpropano
D. 2, 2-dimethyl pentanol
12
164 The strongest acid among the following is:
A. o-methoxyphenol
B. m-methoxyphenol
c. p-methoxyphenol
D. phenol
12
165 Williamson’s synthesis is used to
prepare:
A. diethyl ether
B. PVC
c. bakelite
D. ethyl alcohol
12
166 Which of the following statement
regarding solubility of ethers in water is
true?
A. Ethers are sparingly soluble in water due to the formation of hydrogen bond with water.
B. Ethers are highly soluble in water due to the formation of hydrogen bond with water.
C. Ethers are sparingly soluble in water as they cannot form hydrogen bond with water.
D. Ethers are highly soluble in water as they are polar in nature.
12
167 How will you convert:
(i) Propene to propan-1-ol?
(ii) Ethanal to propan-2-ol?
12
168 What will be products formed when
above epoxide reacts with ( boldsymbol{C H}_{3} boldsymbol{O H} ) in
acidic and in basic medium?
A . Acidic – ( left(C H_{3}right)_{2} C O H-C H_{2}left(O C H_{3}right) ); Basic
( left(C H_{3}right)_{2} Cleft(O C H_{3}right)-C H_{2} O H )
B. Acidic – (CH3)_COH – CH ( _{2}left(O C H_{3} ) ); Basic – right. ( left(C H_{3}right)_{2} C O H-C H_{2}left(O C H_{3}right) )
c. Acidic – ( left(C H_{3}right)_{2} Cleft(O C H_{3}right)-C H_{2} O H ; ) Basic
( left(C H_{3}right)_{2} C O H-C H_{2}left(O C H_{3}right) )
D. Acidic- ( left(C H_{3}right)_{2} Cleft(O C H_{3}right)-C H_{2} O H ; ) Basic( left(C H_{3}right)_{2} Cleft(O C H_{3}right)-C H_{2} O H )
12
169 Phenol reacts with alkali to give:
A . salt
B. water
c. both ( A ) and ( B )
D. complex compound
12
170 Which of the following can be obtained by subjecting ethyl alcohol to oxidation?

This question has multiple correct options
A. Ethyl acetate
B. Acetic acid
c. Diethyl ether
D. Acetaldehyde

12
171 Predict the increasing order of acidity in the following compounds.
A. Phenol
B. Paracresol
c. Metanitrophenol
D. Paranitrophenol
12
172 Which of the following is steam volatile?
A. O-nitrophenol
B. P-nitrophenol
c. Both of them
D. Neither of them
12
173 Which of the following reacts with phenol to give salicylaldehyde after hydrolysis?
A. Dichloro methane
B. Trichloro methane
c. Methyl chloride
D. None of the above
12
174 Mixture can be of
( mathbf{A} )
( B )
c. Both (a) and (b)
D. None of these
12
175 In the esterification of an organic acid R-COOH by alcohol R’OH, O of acid is isotopic. ( boldsymbol{R}-stackrel{mathbb{N}}{boldsymbol{C}}-stackrel{mathbf{1 8}}{boldsymbol{O} boldsymbol{H}}+boldsymbol{R}^{prime}-boldsymbol{O}-boldsymbol{H} rightarrow boldsymbol{R}- )
( stackrel{0}{C}-O R^{prime}+H_{2} O )
Which of the following statement is correct?
A. 18 p is in ester
B. 18 O is in water
( c cdot 18 O ) is in both
( D cdot 18 O ) is in none
12
176 Write the mechanism of the given
reaction.
12
177 An equlimolar quantities of ethanol and
propanol are heated with conc. ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} )
The products formed is/ are :
A. ( C_{2} H_{5} O C_{2} H_{5} )
в. ( C_{3} H_{7} O C_{3} H_{7} )
c. ( C_{2} H_{5} O C_{3} H_{7} )
D. all of these
12
178 13. Chlorination of toluene in the presence of light and heat
followed by the treatment with aqueous NaOH gives
(a) o-Cresol
(b) p-Cresol
(c) 2,4-Dihydroxy toluene (d) Benzoic acid
12
179 ( 3 mathrm{mL}, ) of ethanol is taken in a test tube
and warmed gently in a water bath. A ( 5 % ) solution of alkaline potassium
permanganate is added first drop by drop to this solution, then in excess.
Write chemical equation of this
reaction.
12
180 is prepared on a large
scale from water gas.
A. Methanol
B. Ethanol
c. Methane
D. Ethane
12
181 An ether is more volatile than an alcohol
having the same molecular formula. This is due to:
A. dipolar character of ethers
B. alcohols having resonance structures
c. inter-molecular hydrogen bonding in ethers
D. inter-molecular hydrogen bonding in alcohols
12
182 During the preparation of phenol from benzene sulfonic acid, which of the
following reagents is be used?
A . ( N a O H )
в. ( operatorname{NaHSO}_{4} )
c. ( N a_{2} S O_{4} )
D. ( N a C l )
12
183 Above transformation can be carried
out by :
A ( cdot H^{+} / Delta, quad Z n(H g), H C l )
в. ( H I O_{4}, ) LiAlH( _{4} )
c. ( H I O_{4}, H^{+} / Delta )
D. ( H^{+} / Delta, H I O_{4} )
12
184 Write the IUPAC name of
( boldsymbol{O} boldsymbol{H} )
( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-quad boldsymbol{C} quad-boldsymbol{C H}_{2}-boldsymbol{C H}_{3} )
( mid )
( boldsymbol{C H}_{3} )
A. 3-Methylpentan-3-ol
B. 3-Hydroxyhexane
c. 3-Hydroxy-3-methyl pentane
D. All of the above
12
185 Illustrate with examples the limitations
of Williamson’s synthesis for
the preparation of certain types of
ethers.
12
186 Which of the following gases released during the preparation of phenol from benzene diazonium chloride:
A. ( N_{2}, C l_{2} )
в. ( N_{2}, H C l )
c. ( N O_{2}, C l_{2} )
D. ( N_{2} O, C l_{2} )
12
187 Which of the following gives, on ozonolysis, both aldehydes and
ketones?
A. ( M e_{2} C=C H M e )
В. ( M e_{2} C=C M e_{2} )
( mathbf{c} cdot operatorname{meCH}_{2}-C(M e)=C M e_{2} )
D. ( operatorname{Me} C H(M e)-C H=C H M e )
12
188 Which of the following is an antifreeze?
A. water
B. ether
c. ethyl alcohol
D. aniline
12
189 In Williamson’s synthesis, ethoxy
ethane is prepared by:
A. heating sodium ethoxide with ethyl bromide
B. passing ethanol over heated alumina
C . treating ethyl alcohol with excess of conc. ( H_{2} S O_{4} ) at ( 430-440 K )
D. heating ethanol with dry ( A g_{2} O )
12
190 Benzene is converted to benzene
sulfonate using sulphuric acid and eventually through the
benzene sulfonate is gradually transformed to phenol
A. neutralization
B. fusion
c. acidification
D. All of the above
12
191 An ether is more volatile than alcohol
having the same molecular formula. This is due to:
A. intermolecular hydrogen bonding in ethers
B. dipolar character of ethers
c. alcohols having resonance structures
D. intermolecular hydrogen bonding in alcohols
12
192 133. CH, -CH, -0- CH = CH, HẠOIH580, ,
The product/s formed in the reaction is/are
(a) CH2 – CH2 -0 – CH2 – CH2 – OH
OH
(b) CH-CH2-0-CH-CH,
(c) CH2 – CH, – OH and HO – CH = CH,
O
(d) CH2CH2-OH and CH3-C-H
11
12
193 Assertion
Ethanol boils at lower temperature than
ethane.
Reason
The molecular weight of ethanol is
higher than that of ethane.
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
194 Here, A in the above sequence is :
A. ethanol
B. ethyl chloride
c. ethane
D. acetic acid
12
195 Ethanol on reaction with acetic
anhydride gives:
A . acetic ester
B. formic ester
c. ethanoic acid
D. ethyl acetate and ethanoic acid
12
196 The strongest acid among the following aromatic compound is:
A. o-Nitrophenol
B. p-Chlorophenol
c. p-Nitrophenol
D. m-Nitrophenol
12
197 The most acidic compound among the following is
A. phenol
B. ethanol
c. 3,5 -dinitrophenol
D. 4,4 -methoxyphenol
12
198 Which of the following pairs of carbonyl compounds and Grignard reagent should be chosen as reactants to
prepare 2,4 -dimethyl-3-pentanol?
A. ( C H_{3} C H_{2} C H_{2} C H O ) and ( C H_{3} C H_{2} C H_{2} M g B r )
в. ( left(C H_{3}right)_{2} C H C H O ) and ( left(C H_{3}right)_{2} C H M g B r )
c. ( C H_{3} C H_{2} C O C H_{3} ) and ( left(C H_{3}right)_{2} C H M g B r )
D. ( left(C H_{3}right)_{2} C H C H O ) and ( C H_{3} C H_{2} C H_{2} M g B r )
12
199 Allanite wanted to prepare (R) 2-
Methoxy butane using Williamson ether synthesis. He remembered that
Williamson synthesis involves a ( boldsymbol{S}_{N} mathbf{2} )
displacement, which takes place with inversion of configuration. He ordered a
bottle of (S) 2-Butanol for his chiral
starting material. He also
remembered that the ( S_{N} 2 ) goes best on
primary halides so he made methyl
halide and sodium
(S) 2 -butoxide after
warming these reagents together he obtained an excellent yield of 2 -Methoxy
butane.
2-Methoxy butane ( frac{text {anhydrous} boldsymbol{H} boldsymbol{I}}{rightarrow} )
products
Products formed are:
( mathbf{A} cdot H_{3} C-I+C H_{3}-(O H) C H-C H_{2}-C H_{3} )
B. ( C H_{3}-I+C H_{3}-C H_{2}-C H_{2}-C H_{3} )
( mathbf{c} cdot C H_{3}-O H+C H_{3}-C H(I)-C H_{2}-C H_{3} )
D. ( C H_{3}-C H_{2}-I+C H_{3}-(O H) C H-C H_{3} )
12
200 The boiling point of alcohol is higher than ether due to:
A. hydrogen bonding
B. large size of alcohol
c. presence of -OH group
D. high moleculer weight
12
201 Alcoholic beverages contain:
A. Glycerol
B. Ethyl alcohol
c. Methyl alcohol
D. Isopropyl alcohol
12
202 How many sigma bonds are in a molecule of diethyl ether, ( left(C_{2} H_{5}right)_{2} O ? )
( A cdot 14 )
B. 12
( c cdot 8 )
D. 16
12
203 IUPAC name of the tertiary butyl alcohol
is:
A. 1-butanol
B. 2-butanol
c. 2-methyl-1-propanol
D. 2-methyl-2-propanol
12
204 There are two samples ( A ) and ( B . A ) is
Methanol and ( B ) is Ethanol. Both are
heated both at the same rate in closed
container separately. Which one is correct about the above test?
A ( cdot ) At ( 60^{circ} mathrm{C} ), container ( A ) and ( B ) both have liquids in them
B. At ( 80^{circ} ) C, container ( A ) and ( B ) both have vapours in them
C. At ( 70^{0} mathrm{C} ), container ( B ) has liquid and ( A ) has vapours
D. All the above
12
205 2-Phenylethanol may be prepared by the reaction of phenylmagnesium bromide with:
A. ( H C H O )
в. ( C H_{3} C H O )
c. ( C H_{3} ) СОСН ( _{3} )
D.
12
206 CH,
127.
B2D6
Н,0,9OH
CH:
АН
D
(b) ( CH)
ОН
CH3
ОН
D
АН
Н
(c) (OH
(d) (CH,
Lloh
12
207 Diethyl ether ( C_{4} H_{10} O ), used medically as
an anesthetic, is prepared from ethyl alcohol ( C_{2} H_{5} O H ) in presence of an acid. ( 2 C_{2} H_{5} O H frac{a c i d}{140^{0}} C_{2} H_{5} O C_{2} H_{5}+H_{2} O )
Calculate the ( % ) yield if ( 46 g ) of ethyl alcohol gives ( 30 g ) of ether.
12
208 Write chemical reaction for the
following conversion. Cumene to phenol
12
209 Which of the following alcohols cannot
be oxidized by ( K_{2} C r O_{7} ? )
A. Ethanol
B. Tert butyl alcohol
c. Isopropyl alcohol
D. Allyl alcohol
12
210 Tertiary butyl methyl ether on treatment
with HI forms:
A. isobutane and methyl iodide
B. isobutanol and methanol
C . tertiary butyl iodide and methanol
D. tertiary butyl iodide and methyl iodide
12
211 What is the product formed?
A. ( quad O C H_{2} C H_{3} )
B.
( c )
D. none of the above
12
212 The compound Y is:
( A )
B. ( quad C H_{3} )
( C H_{2}-C H=C-C H_{2}-C O O H )
( O H )
( c )
( mathbf{D} cdot C H_{2}=C H-C H-C H_{2}-C O O H )
12
213 ( I_{2} ) produced, when ozone reacts with
moist ( K I ), is used to convert ( C_{2} H_{5} O H )
to ( C I_{3} C H O . ) The number of moles of
ozone required to convert 1 mol of
( C_{2} H_{5} O H ) into ( C I_{3} C H O ) is :
A . 1
B . 2
( c cdot 4 )
D. 3
12
214 The common name for propan-2-ol is :
A . n-Propyl alcohol.
B. iso-Propyl alcohol.
c. ethyl alcohol.
D. methyl alcohol.
12
215 IUPAC name is 1-phenyl propan-3-ol Is the above statement correct?
A. True
B. False
12
216 ( boldsymbol{C H}_{3} boldsymbol{M} boldsymbol{g} boldsymbol{X}^{C boldsymbol{H}_{3}} stackrel{C O O C_{2} boldsymbol{H}_{5}}{boldsymbol{A}} stackrel{N a}{rightarrow} boldsymbol{B}^{C_{2}} frac{boldsymbol{H}_{5} boldsymbol{O H}}{longrightarrow} )
( C )
Here, ( C ) is :
A ( cdot C_{2} H_{5} O C_{2} H_{5} )
в. ( C H_{3} ) СООС( _{2} ) Нь
c. ( C H_{3} C O O C H_{3} )
D. ( left(C H_{3}right)_{3} C O C_{2} H_{5} )
12
217 The IUPAC name for methyl acetate is :
A. ethoxymethane
B. Methyl ethanoate
c. ethylmethanoate
D. methoxy ethane
12
218 What are the products obtained from the reaction given below? MeOEt ( stackrel{H I}{longrightarrow} ? )
A . ( M e I ) and ( E t O H )
B. ( M e O H ) and ( E t I )
c. ( M e I, M e O H, E t I ) and ( E t O H )
D. None of the above
12
219 ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{O}-boldsymbol{C H}_{2}-boldsymbol{C H}_{3} ) react
with hot and excess HI the product formed is:
A. ( C H_{3} C H_{2} I ) and ( C H_{3} C H_{2} O H )
в. ( C H_{3} C H_{2} ) ОН
c. ( C H_{3} C H_{2} I )
D. None of these
12
220 Phenol is a:
A . crystalline solid
B. amorphous solid
C . volatile liquid
D. nonvolatile liquid
12
221 Explain the following reactions of
chloroform:
(i) Effect of air and sunlight,
(ii) Reimer
Tiemann reaction.
12
222 Ethanol is denatured (made unfit for
human consumption) by adding a poisonous substance. Identify it
A. Tartaric acid
B. Methyl alcohol
c. Acetic acid
D. Stearic acid
12
223 Use of the Data Booklet is relevant to
this question.
( 2.40 g ) of ( p r o p a n-2-o l ) were mixed
with excess acidified potassium dichromate(VI). The reaction
mixture was then boiled under reflux for
twenty minutes. The organic product
was then collected
by distillation. The yield of product was ( 75.0 % )
What mass of product was collected?
A ( .1 .74 g )
B. ( 1.80 g )
c. ( 2.22 g )
D. ( 2.32 g )
12
224 Correct statement(s) in case of n-
butanol and t-butanol is (are):
This question has multiple correct options
A. both are having equal solubility in water
B. t-butanol is more soluble in water than n-butanol.
C. boiling point of t-butanol is lower than n-butanol.
D. boiling point of n-butanol is lower than t-butanol.
12
225 A compound (X) of molecular formula
( C_{3} H_{8} O ) can be oxidized to a compound
of molecular ( C_{3} H_{6} O_{2}(Y) .(X) ) is most
likely to be
A. aldehyde
B. alcohol
c. ether
D. both B and C
12
226 Explain the industrial production of phenol of high purity and less production cost and also explain the bromination of phenol. 12
227 Give equations for chemical reactions to carry out following conversions.
(a) Cumene to phenol
(b) Phenol from aniline
12
228 mole of phenol reacts with bromine to give 2,4,6 -tribromophenol. The amount of bromine required is:
A. 3.0 moles
B. 1.5 moles
c. 4.5 moles
D. 6.0 moles
12
229 Which of the following is true?
A. Diethyl ether has lower density than dibutyl ether.
B. Diethyl ether has higher density than dibutyl ether.
C. Diethyl ether is as dense as dibutyl ether.
D. The relative density of diethyl ether and dibutyl ether depends on the method of their preparation.
12
230 Question 21. Name the reagents used in the following reactions
(i) Oxidation of a primary alcohol to carboxylic acid.
(ii) Oxidation of a primary alcohol to aldehyde.
(ii) Bromination of phenol to 2,4,6-tribromophenol.
(iv) Benzyl alcohol to benzoic acid.
(v) Dehydration of propan-2-ol to propene.
(vi) Butan-2-one to butan-2-ol.
0 Oxidising agent (strong)
(1) Weak oxidising agent
(iii) Bry/H20
(iv) Strong oxidising agent
(v) Dehydrating agent
(vi) Reducing agent.
12
231 The sodium phenoxide ion formed during the preparation of phenol from benzene suphonic hydrolysed in prasence of acid to:
A. neutralize the basic phenoxide ion.
B. to increase the basic nature of reaction mixture
c. to acidify the reaction mixture so as to get phenol.
D. both ( A ) and ( C ).
12
232 Write the IUPAC name of the given
compound.
12
233 toppr 5
Q Type your question-
1. ( boldsymbol{C} boldsymbol{l}_{2}, boldsymbol{F} boldsymbol{e} boldsymbol{l}_{3} )
III. ( boldsymbol{H} boldsymbol{B} boldsymbol{r}, ) Heat
( A )
B.
( c )
( D )
12
234 An Alcohol X pass over Cu at ( 300 mathrm{C} ), then
produced compound decolourised
Bromine liquid, X is:
( A )
B.
( c )
( D )
12
235 By the reduction of carbonyl compounds
the alcohol not obtained is:
A. primary alcohol
B. secondary alcohol
c. tertiary alcohol
D. all the above
12
236 STATEMENT-1: Diethyl ether when boiled with water gives ethyl alcohol. STATEMENT-2: Diethyl ether is less dense than water.
A. STATEMENT-1 is True, STATEMENT-2 is True:
STATEMENT-2 is a correct explanation for STATEMENT-
B. STATEMENT-1 is True, STATEMENT-2 is True:
STATEMENT-2 is NOT a correct explanation for STATEMENT-1
c. STATEMENT-1 is True, STATEMENT-2 is False
D. STATEMENT-1 is False, STATEMENT-2 is True
12
237 In the below shown reaction
sequence, the compound B formed is :
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{O H} stackrel{boldsymbol{P C l}_{3}}{longrightarrow} boldsymbol{A} stackrel{text {alc. } boldsymbol{K O H}}{boldsymbol{N}} boldsymbol{B} )
A. propane
B. propanol
c. propene
D. propyne
12
238 Among the compound ( 1-1 V ), the compound having the lowest boiling point is
( A )
B. II
c. III
D. IV
12
239 The IUPAC name of the following
compound is:
A. 1,2 -dimethyl-2-butenol
B. 3-methylpent-3-en-2-ol
C. 3,4 -dimethyl-2-buten-4-ol
D. none of the above
12
240 What happens when the sodium metal
is dropped in the ethanol?
12
241 Explain how Alcohols of lower molecular mass are soluble in water. 12
242 Write two methods of preparation of
methyl alcohol. Describe giving diagram. Give such a test of methyl alcohol which is not given by ethyl alcohol which is not given by ethyl alcohol. Give the chemical reactions.
12
243 The name of the compound is isobuty
alcohol.
If true enter 1 , else enter 0 .
12
244 In the given reaction, products are
( A )
and ( mathrm{H}_{2} )
B.
and ( mathrm{CH}_{3} mathrm{Br} )
( c )
and ( mathrm{CH}_{3} mathrm{OH} )
( D )
and ( mathrm{CH}_{3} mathrm{Br} )
12
245 toppr
Q Type your question
( A )
( mathrm{OH} quad mathrm{OCH}_{3} )
( X=Y=C H_{3}-C H-Cleft(C H_{3}right)_{2} )
B.
( mathrm{OCH}_{3} mathrm{OH} )
( X=Y=C H_{3}-C H-Cleft(C H_{3}right)_{2} )
( c )
( mathrm{OH} quad mathrm{OCH}_{3} )
( mathrm{I} )
( mathrm{X}=mathrm{CH}_{3}-mathrm{CH}-mathrm{C}left(mathrm{CH}_{3}right)_{2} )
( mathrm{OCH}_{3} mathrm{OH} )
( Y=C H_{3}-C H-Cleft(C H_{3}right)_{2} )
( D )
( mathrm{OCH}_{3} )
( mathrm{X}=mathrm{CH}_{3}-mathrm{CH}-mathrm{C}left(mathrm{CH}_{3}right)_{2} )
( mid )
( mathrm{OH} )
( mathrm{OH} )
( mathrm{Y}=mathrm{CH}_{3}-mathrm{CH}-mathrm{C}left(mathrm{CH}_{3}right)_{2} )

( mathrm{OCH}_{3} )

12
246 Write balanced chemical equations for each of the following:
(i) The action of warm water on AIN.
(ii) The action of hot and concentrated
nitric acid on copper.
(iii) The action of hydrochloric acid on sodium bicarbonate.
(iv) The action of dilute sulphuric acid on sodium sulphite.
(v) Preparation of ethanol from ethyl chloride.
12
247 Which is stronger acid in the following
pair?
3-Chlorophenol and 2-Ethylphenol.
12
248 How are the following conversions carried out?
(i) Propene ( longrightarrow ) Propan-2-ol
(ii) Benzyl chloride ( longrightarrow ) Benzyl alcohol
(iii) Ethyl magnesium chloride ( longrightarrow ) Propan-1-ol
(iv) Methyl magnesium bromide ( longrightarrow 2 ) Methylpropan-2-ol
12
249 Which compound in each of the
following pairs would have the higher boiling point ? Explain your answers.
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{O H} boldsymbol{o r} boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{O C H}_{3} )
( boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{O} boldsymbol{H} ) or ( boldsymbol{H} boldsymbol{O C H}_{2} boldsymbol{C H}_{2} boldsymbol{O} boldsymbol{H} )
(c)
(d)
( (e) )
( (mathrm{g}) )
(h) Hexane ( mathrm{CH}_{3}left(mathrm{CH}_{2}right)_{4} mathrm{CH}_{3} ) or nonane ( mathrm{CH}_{3}left(mathrm{CH}_{2}right)_{7} mathrm{CH}_{3} )
( (mathbf{i}) )
12
250 Mark the correct order of decreasing
acid strength of the following
compounds
( A cdot(v)>(i v)>(i i)>(i)>( ) iii)
B. (ii)> (iv) > (i) > (iii) > (v)
( c cdot(i v)>(v)>(text { iii) }>(text { ii })>( text { i) } )
D. (v) > (iv) > (iii) > (ii) > (i)
12
251 38. Rectified spirit is :
(1) 95% ethyl alcohol
(2) 100% ethyl alcohol
(3) methylated spirit
(4) tincture iodine
12
252 When ( C H_{3} M g I ) is made to react with
acetone and the addition product is hydrolysed, we get a/an:
A. primary alcohol
B. secondary alcohol
c. tertiary alcohol
D. aldehyde
12
253 Which of the following bond line
structural formulae is correct for the
four carbon branched primary alcohols?
( A )
B.
( c )
( D )
12
254 DE ( boldsymbol{C H}_{3}-boldsymbol{C H}-boldsymbol{C H}_{2}-boldsymbol{C H}_{3} frac{A l_{2} boldsymbol{O}_{3}}{573 boldsymbol{K}} )
( boldsymbol{C H}_{3}-boldsymbol{C H}=boldsymbol{C H}-boldsymbol{C H}_{3} )
Butane-2-ol
2-ene
12
255 Which of the following is mostly easily
cleaved by ( boldsymbol{H} boldsymbol{B r} ) ?
( A )
( B )
( c )
D.
12
256 When phenol is treated with ( C H C l_{3} )
and ( N a O H, ) the product formed is:
A. Benzaldehyde
B. Salicylaldehyde
c. Salicylic acid
D. Benzoic acid
12
257 Give reason for the higher boiling point
of ethanol in comparison to
methoxymethane.
12
258 The IUPAC name of ( boldsymbol{H}_{3} boldsymbol{C}-underset{boldsymbol{O} boldsymbol{C}_{3} boldsymbol{H}_{7}}{boldsymbol{H}}- )
( boldsymbol{C}_{3} boldsymbol{H}_{7} ) is:
12
259 Which of the following alcohols forms a ketone when oxidized?
A. 1-Propanol
B. Methanol
c. 2-Methyl-2-propanol
D. 2-Propanol
12
260 Q Type your question.
the following species are involved in the
above-mentioned reaction as
intermediates?
This question has multiple correct options
( A )
B.
( c )
( D )
12
261 Which is/are the correct IUPAC name(s)
of the corresponding structures? This question has multiple correct options
A. 3-(N-Ethylamino)-2-methylcyclohexan-1-ol
B. 3- (2-Aminoethyl)-2-methylcyclohexan-1-ol
c. Methyl 4-chlorocarbonyl-3-cyanobutanoate
D. Cyclohexanal
12
262 Identify the products. 12
263 Which of the following substituents will decrease the acidic strength of phenol?
A. ( -N O_{2} )
B. ( -C N )
( mathrm{c} cdot-C H_{3} )
D. – ( C H O )
12
264 The IUPAC name for the compound:
A. 3,4 -Dimethyl-2-butene- -4-ol
B. 1, 2-Dimethyl-2-butenol
c. 3-Methyl pent-3-en-2-ol
D. 2, 3-Dimethyl-3-pentenol
12
265 IUPAC name of the given compound is :
A. 2,6 -Dimethylphenol
B. 2-Hydroxy-3-Methyltoluene
c. 2 -Hydroxy- 1,3 -Dimethylbenzene
D. None of these
12
266 Substances used in two different
projects done by the members of a science club are given in the table.
Project – 1

Project – 2
Ethanoic acid
Ethanol
concentrated sulphuric acid
water
(a) In which project (Project 1 or Project
2) a compound with pleasant fruity smell is formed?
(b) How will you distinguish between distilled water and hard water by using the precipitate formed in Project 2 ?

12
267 Dehydration of alcohols can be done by using:
A . conc. ( H_{2} S O_{4} )
в. ( A l_{2} O_{3} )
c. ( C a O )
D. both A and B
12
268 ( boldsymbol{n} ) -propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent?
A ( cdot P C l_{5} )
B. Reduction
c. Oxidation with potassium dichromate
D. Ozonolysis
12
269 Name the two organic compounds which have the same molecular formula
( C_{2} H_{6} O . ) Will they react with ( P C l_{5} ? ) If
they react, what are the products formed?
12
270 Question 15. Explain why is ortho nitrophenol more acidic than ortho
methoxyphenol
while (1) NO, electron withdrawing group. OCHz-electron releasing group.
(ii) Presence of electron withdrawing group increases the stability of
phenoxide ion while presence of electron releasing group decreases
its stability
(ii) Higher is the stability of phenoxide ion formed, more is the acidic
character
12
271 Which of the following statements
is/are correct about the following
reactions?

This question has multiple correct options
( A ). path I is feasible.
B. path II is feasible.
C. PhCl cannot be trinitrated because Cl and two ( N O_{2} ) atoms deactivate the ring towards further SE reaction.
D. 2,4 -Dinitrophenol can be nitrated beacuse the two deactivating ( N O_{2} ) groups prevent ring oxidation

12
272 In the following sequences of reactions, the compound ( Q ) formed will be?
[
mathbb{P} stackrel{text { Oleum }}{longrightarrow} P frac{(mathrm{i}) mathrm{NaOH}}{(mathrm{ii}) mathrm{H}^{+}} rightarrow Q
]
A . aniline
B. phenol
c. benzaldehyde
D. benzene sulphonic acid
12
273 Which of the following compounds has highest boiling point?
A. Propan-1-ol
B. ( n ) – butane
c. chloroethane
D. Propanal
12
274 108. CH CH = CH, -BD3/THFX.
H2O2/0H
Identify product X is:
(a) CH2CHCH,D (b) CH3CHCH,OH
OH
(C) CH3CHCH; (d) CHD-CH-CH3
OD
OH
12
275 Alcohols of low molecular weight are:
A. soluble in water
B. soluble in water on heating
C . insoluble in water
D. insoluble in all solvents.
12
276 Identify the products ( A ) and ( B ) 12
277 What will happen when diethyl ether
treated with hot and conc. ( H ) I?
A. Ethyl alcoho
B. Ethyl iodide
c. Methyl iodide
D. Methanol
12
278 Give the decreasing order of reactivity of the following compounds with ( H B r )
( (mathrm{I}) )
( left.(mathrm{II}) mathrm{H}_{3} mathrm{C}-bigotimesrightrangle )
( (mathrm{III}) mathrm{M}_{mathrm{e}} mathrm{O}-langlebigcircrangle widehat{mathrm{O}_{mathrm{H}}} )
( (mathbf{I V}) )
12
279 What is true for the equilibrium
reaction:
Acetic acid+ ethanol ( stackrel{boldsymbol{H}^{+}}{rightleftharpoons} ) Ethyl acetate ( + )
( boldsymbol{H}_{2} boldsymbol{O} ? )
This question has multiple correct options
A. The use of equimolar quantities of ethanol and acetic acid will give greatest yield of ester at equilibrium.
B. Removal of water will increase the amount of ester at equilibrium
C. Addition of water ester at equilibrium will cause formation of equal amount of water
D. Application of pressure increases the amount of ester at equilibrium
12
280 Question 17. Arrange water, enthanol and phenol in increasing order of
acidity and give reason for your answer.
12
281 How is ( n- ) propoxypropane
synthesized from propan ( -1- ) ol?
Write the mechanism of this reaction.
12
282 Which of the following compounds is obtained on passing ethanol vapours on
heated ( boldsymbol{A l}_{2} boldsymbol{O}_{3} ) ?
A. Ethylether
B. Acetone
c. Ethane
D. Ethanol
12
283 The name of the compound is
Cyclopent-1-en-3-ol
If true enter 1 , else enter 0 .
12
284 Question 8. Alcohols react with active metals e.g., Na, K etc, to give
corresponding alkoxides. Write down the decreasing order of reactivity of
sodium metal towards primary, secondary and tertiary alcohols.
12
285 Write the structrual formula of the
major product in the following case:
Ethene mixed with air is passed under
pressure over a silver catalyst at ( 250^{circ} mathrm{C} )
12
286 Based on above isomers answer the
following.
Which isomer on dehydration with conc.
( boldsymbol{H}_{3} boldsymbol{P} boldsymbol{O}_{4} ) undergo maximum
rearrangement?
( A )
B.
( c )
D.
12
287 Methanol can be prepared when:
A. iodomethane is heated with moist silver oxide
B. iodomethane react with sodium in the presence of ether
C. both ( A ) and ( B )
D. none of these
12
288 Ethylene oxide when treated with Grignard reagent yields:
A. secondary alcohol
B. tertiary alcohol
c. cyclopropyl alcohol
D. primary alcohol
12
289 Which part of the -COOH group gets cleaved in the esterification with
alcohol?
A. only H atom
B. only OH partttt
c. either 1 or 2
D. c- oн bond
12
290 Explain the mechanism of the following
reaction. ( mathbf{2} boldsymbol{C} boldsymbol{H}_{3}-boldsymbol{C} boldsymbol{H}_{2}-boldsymbol{O} boldsymbol{H} frac{boldsymbol{H}^{+}}{4 mathbf{1} mathbf{3} boldsymbol{K}} boldsymbol{C} boldsymbol{H}_{3}- )
( boldsymbol{C H}_{2}-boldsymbol{O}-boldsymbol{C H}_{2}-boldsymbol{C H}_{3}+boldsymbol{H}_{2} boldsymbol{O} )
12
291 The major organic product in the reaction:
( boldsymbol{C H}_{3}-boldsymbol{O}-boldsymbol{C H}left(boldsymbol{C H}_{3}right)_{2}+boldsymbol{H I} rightarrow )
Product is:
A ( cdot C H_{3} O H+left(C H_{3}right) C H I )
в. ( operatorname{ICH}_{2} mathrm{OCH}left(mathrm{CH}_{3}right)_{2} )
( ^{mathrm{c}} cdot_{C H_{3}} O Cleft(C H_{3}right)_{2} )
D. ( left.C H 3_{3} I+left(C H_{3}right)_{2}right) C H O H )
12
292 Write balanced equation for : Acetic
acid is warmed with ethanol in the
presence of conc. ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} )
12
293 Ethyl alcohol is the hydrolysis product of
A ( cdot C_{2} H_{5} C l )
в. ( C H_{3} C H O )
( mathbf{c} cdot C_{2} H_{4} )
D. ( C_{2} H_{5} M g I )
12
294 ( boldsymbol{C}_{6} boldsymbol{H}_{5}-boldsymbol{O}-boldsymbol{C}_{7} boldsymbol{H}_{15}(boldsymbol{n}) ) IUPAC name of
the compound is :
A. 1-Phenoxyheptane
B. 1-Heptoxybenzene
c. Both (a) and (b)
D. None of these
12
295 Decreasing order of acidic strength of
different (-OH) group is:
( mathbf{A} cdot w>x>y>z )
в. ( w>z>x>y )
( mathbf{c} . z>w>x>y )
D. ( z>x>w>y )
12
296 Write the name of reactant used for the
preparation ethyl t-butyl ether
12
297 Glycerol is:
A. ( 1,3- ) dihydroxy propane
B. ( 2,3- ) dihydroxy propanone
c. ( 2,3- ) dihydroxy propane
D. ( 1,2,3- ) Propane triol
12
298 The compound which reacts fastest
with Lucas reagent at room temperature, is
A . butan-1-ol
B. butan-2-ol
c. 2-methyl propan-1-ol
D. 2-methyl propan-2-ol
12
299 ( x )
( x )
( x )
12
300 Question 14. Give two reactions that show the acidic nature of phenol.
Compare acidity of phenol with that of ethanol.
Reaction of phenol with Na and NaOH comparing of acidity of phenol
and ethanol.
12
301 Diazonium salt used in the preparation
of phenol is obtained by treating with nitrous acid (obtained from sodium nitrite).
A. Aromatic primary amine
B. Aromatic secondary amine
c. Nitro benzene
D. None of the above
12
302 The compounds ( (C) ) and ( (D) )
respectively are:
( mathbf{A} cdot E t N H_{2} ) and ( operatorname{Pr} C H=O )
B. ( E t-N H- )Pr and ( H C O O H )
( mathbf{C} cdot operatorname{Pr} N H_{2} ) and ( E t C H=O )
D. ( E t N H_{2} ) and ( operatorname{Pr} C H_{2} O H )
12
303 ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}(boldsymbol{O H})- )
( boldsymbol{C H}_{2} boldsymbol{C H}_{3} stackrel{[boldsymbol{O}]}{rightarrow} boldsymbol{A} frac{boldsymbol{C H}_{3} M boldsymbol{g}-boldsymbol{I}}{boldsymbol{H}_{2} boldsymbol{O} / boldsymbol{H}^{+}} boldsymbol{B} )
What is ( A ) in the given reaction sequence?
A. ( C H_{3}-C H_{2}-C H_{2}-C O-C H_{3} )
B. ( C H_{3}-C H_{2}-C O-C H_{2}-C H_{3} )
c. ( C H_{3}-C H_{2}-O-C H_{2}-C H_{2} C H_{3} )
D. ( C H_{3}-C H_{2}-C H_{2}-C H_{2}-C H O )
12
304 The other name for Syngas is:
A. Producer gas
B. Water gas
c. Tear gas
D. Fuel gas
12
305 The final product obtained in the reaction is:
[
mathrm{H}_{3}-langlebigcircrangle-mathrm{O} mathrm{CH}_{3}+mathrm{HBr} longrightarrow
]
( A )
в.
( c )
[
mathrm{cH}_{3}(bigcirc)-mathrm{O} sqrt{bigcirc}-mathrm{cH}_{3}
]
D. none of these
12
306 What is the product in the following
reaction?
A. Benzoquionone
B. Cyclohexane-1-one
c. Benzoic sulphate
D. Benzoic acid
12
307 Oxidation of ( 1^{0} ) alcohols to aldehydes is very successful for the alcohols like:
A. Pent-2-yn-1-이
B. 1-hexanol
c. n-propyl alcohol
D. 1-pentanol
E . 1-octanol
12
308 Phenol ( frac{1 . C H C l_{3} / N a O H}{2 . H^{+}} )
Salicyl aldehyde
The above reaction is known as:
A. Gattermann reaction
B. Sandmeyer reaction
c. Perkin reaction
D. Reimer-Tiemann reaction
12
309 Based on above isomers answer the
following. Which isomers on dehydration with
conc. ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} ) give alkene which is capable to show geometrical isomerism?
( A cdot g, h, f )
B. b, d, a
( c cdot a, b, c )
( D )
of these
12
310 Give the equations of reactions for the
preparation of phenol from cumene.
12
311 Which of the following compound is
most acidic?
A ( . C H_{4} )
B. ( C_{2} H_{6} )
c. ( C H equiv C H )
D. ( C_{2} H_{5} O H )
12
312 When phenol is treated with ( C H C l_{3} )
and ( N a O H, ) the product formed is :
A. Benzaldehyde
B. Salicylaldehyde
c. Salicyclic acid
D. Benzoic acid
12
313 Name the following
(1) Thte non-sublimable solid from a
mxiture of iodine and potassion nitrate
(2) The heavier liquid component from mercury and water
(3) The lower boiling point component from methyl alcohol and water.
(4) The compound containing one atom of sulphur and two atoms of oxygen
(5) An acid whose formula is ( boldsymbol{H}_{mathbf{2}} boldsymbol{C} boldsymbol{O}_{3} )
12
314 Q Type your question-
( (A) )
4
( B )
( c )
( D )
( & )
12
315 Consider the above sequence of reactions. Find ( boldsymbol{A}, boldsymbol{B} ) and ( boldsymbol{C} )
( overbrace{mathrm{CH}}_{2} mathrm{OH} stackrel{mathrm{HBr}}{longrightarrow} mathrm{A}^{mathrm{O}_{3} / text { reduction }}>mathrm{B}+mathrm{c} )
( mathbf{A} )
( overbrace{mathrm{CH}}_{2} mathrm{Br}, mathrm{CH}_{2}=mathrm{O}, mathrm{O}=mathrm{CH}-^{*} mathrm{CH}_{2} mathrm{Br} )
B. ( overbrace{x}_{mathrm{CH}_{2} mathrm{Br}}, stackrel{*}{mathrm{CH}_{2}=} 0, mathrm{O}=mathrm{CH}-mathrm{CH}_{2} mathrm{Br} )
( c )
( overbrace{x}_{mathrm{CH}_{2} mathrm{Br}}, ) HCOOH ( , mathrm{O}=mathrm{CH}-dot{mathrm{CH}}_{2} mathrm{Br} )
D. ( overbrace{x}_{mathrm{CH}_{2} mathrm{Br}}, ) HCOOH ( , mathrm{HOOC}-stackrel{*}{mathrm{CH}_{2}} mathrm{Br} )
12
316 iso-butylene when subjected to hydroboration oxidation reaction,
yields:
A. iso-butyl alcohol
B. sec-butyl alcohol
c. n-butyl alcohol
D. tert-butyl alcohol
12
317 Name the reagent used for Bromination of phenol to 2,4,6 -tribromophenol:
( mathbf{A} cdot H B r )
B. ( N B S )
c. ( B r_{2} / H_{2} O_{2} )
D. ( B r_{2} / H_{2} O )
12
318 begin{tabular}{l}
2 \
( c ) \
( c ) \
hline
end{tabular}
12
319 Write the three steps involved in the
mechanism of acid catalysed
dehydration of ethanol to ethene.
12
320 Which one of the following compounds do not give a primary alcohol on reduction?
A. Propanal
B. Propanoic acid
c. Methyl propanoate
D. Propan-2-one
12
321 Question 7. Give the structures and IUPAC names of monohydric
phenols of molecular formula, C,H,O.
Ortho (1, 2); para (1.4); meta (1.3) Draw these isomers according to the
mentioned positions of -OH and -CH3 groups.
12
322 An alcohol on oxidation gives
( C H_{3} C O O H ) and ( C H_{3} C H_{2} C O O H . ) The
alcohol is :
A ( cdot C H_{3} C H_{2} O H )
в. ( C H_{3} C H(O H) C H_{2} C H_{3} )
c. ( left(C H_{3}right)_{2} C(O H) C H_{2} C H_{3} )
D. ( C H_{3} C H(O H) C H_{2} C H_{2} C H_{3} )
12
323 Assertion
Fruit formation process shows increase
in rate with passage of time.
Reason
Hydrolysis of ester is a homogeneous autocatalytic reaction.
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. Both Assertion and Reason are incorrect
12
324 Among the four compounds (i) acetone,
(ii) propanol, (iiii) methyl acetate and
(iv) propionic acid, the two that are isomeric are
A. methyl acetate and acetone
B. methyl acetate and propanol
c. propionic acid and methyl acetate
D. propionic acid and acetone
12
325 Which series of compounds can be prepared by oxidation of primary alcohols? 12
326 32. A compound A (CH,0) upon treatment with CH,MgX
gives 4 moles of methane. Identify the structure of (A)
which has all primary functional groups:
ОН
ОН ОН
ОН
(b) 7
CHO
ОН
ОН 0
НО
ОН
(d) ХАОН
ОН
— ОН
ОН
12
327 The product is:
( A )
B.
( c )
D.
12
328 The ease of esterification of following alcohols with HCOOH will be highest for ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{O H} quadleft(boldsymbol{C H}_{3}right)_{2} boldsymbol{C H O H} )
( left(begin{array}{c}left.boldsymbol{C H}_{3}right)_{3} boldsymbol{C O H} \ mathbf{3}end{array}right. )
12
329 Which of the following leads to formation of ( 1^{0} ) alcohol?
A ( cdot C H_{3}-C H=C H_{2} frac{H_{2} O}{H^{+}} )
B. ( C H_{3}-C H=C H_{2} frac{N a B H_{4} / O H^{circ}}{H gleft(O A c_{2} / T H Fright.} )
c. ( C H_{3}-C H=C H_{2} frac{H_{2} Q_{2} / O H^{6}}{B_{2} H_{6} / T H F} )
D. ( C H_{3}-C equiv C-C H_{3} ) dil.Haso ( _{text {di.HgS }} ),
12
330 Mixed ether will not be formed in the
reaction?
A ( cdot C H_{3} O C H_{2} C l+C_{2} H_{5} M g B r )
в. ( C H_{2} N_{2}+C_{2} H_{5} O H )
c. ( C_{2} H_{5} O N a+C H_{3} )
D. ( C_{2} H_{5} O H+H_{2} S O_{4}left(140^{0} Cright) )
12
331 ( (A) ) and ( (B) ) are:
( A )
[
mathbf{A} text { and } mathbf{B} Rightarrow mathbf{N} equiv mathbf{C} prod_{mathbf{O}}
]
в.
[
mathbf{A} text { and } mathrm{B} Rightarrow mathbf{N} equiv mathrm{C} overbrace{mathrm{M}_{mathrm{e}}}^{mathrm{OH}} mathbf{M}_{mathrm{e}}
]
( c )
[
begin{array}{c}
mathbf{A} Rightarrow mathbf{N} equiv mathbf{C} widehat{|} mathbf{N} \
mathbf{O} \
mathbf{B} Rightarrow mathbf{M} mathbf{e}
end{array}
]
D.
[
mathbf{A} Rightarrow mathbf{N} equiv mathbf{C} widehat{mathbf{O}}
]
[
mathrm{B} Rightarrow mathrm{Me} overbrace{mathrm{o}}^{mathrm{OH}} overbrace{mathrm{Me}}^{mathrm{M}}
]
12
332 Ethyl alcohol on distillation with ( boldsymbol{X} )
gives chloroform, ( boldsymbol{X} ) is:
A. a paste of bleaching powder
B. chlorine
c. methyl chloride
D. ( C a(O H)_{2} )
12
333 Primary alcohols are obtained by the reaction of Grignard reagent with:
A. ( C H_{3} C O C H_{3} )
в. ( H C O O H )
с. НСН О
D. ( C H_{3} C H O )
12
334 What is picric acid? How is it prepared from phenol? 12
335 On the treatment of the following
compound with a strong acid, the most
susceptible site for bond cleavage is:
A. ( O_{2}-C_{3} )
В ( cdot O_{5}-C_{6} )
c. ( C_{4}-O_{5} )
( mathrm{D} cdot C_{1}-O_{2} )
12
336 Draw the structural formula of ( 2- )
methylpropan-2-ol molecule.
12
337 Fermentation invariably leads to the
formation of :
A. ethyl alcohol
B. methyl alcohol
c. carbon dioxide
D. acetic acid
12
338 Chloroethane, ( C_{2} H_{5} C l, ) does not react with methanol under mild conditions.
What reagent could be added to the reaction mixture to increase the rate of
substitution?
A. ( H C l ) (conc.)
в. ( N a O H )
c. ( N H_{4} O H )
D. ( A g N O_{3} )
12
339 Assertion: Alcohols on dehydration can produce ether as well as alkene under different conditions.
Reason: Dehydration of alcohol proceeds through the formation of carbonium ion.
A. Both Assertion and Reason are true and Reason is the correct explanation to Assertion
B. Both Assertion and Reason are true and Reason is not the correct explanation to Assertion
c. Assertion is true but Reason is false
D. Assertion is false but Reason is true
12
340 Name the reagents used in the
following reactions:
(i) Oxidation of a primary alcohol to carboxylic acid.
(ii) Oxidation of a primary alcohol to aldehyde.
(iii) Bromination of phenol to 2,4,6 tribromophenol.
(iv) Benzyl alcohol to benzoic acid.
(v) Dehydration of propan-2-ol to
propene.
(vi) Butan-2-one to butan-2-ol.
12
341 How will you convert phenol to phenolpthalein? 12
342 Question 6. Suggest a reagent for the following conversion.
OH
12
343 Which of the following is an example of symmetrical ether?
A. Diisopropyl ether
B. Methoxy ethane
c. 1-Methoxy-2-methyl propane
D. None of these
12
344 ( A 3^{circ} ) alcohol as shown can be obtained
by the reaction of ketone (diisopropyl
ketone) and
A. isopropyl magnesium bromide
B. isopropyl lithium
c. diisopropyl cadmium
D. diisopropyl zinc
12
345 During the preparation of phenol from benzene sulfonic acid for the
preparation of sodium benzo sulfonate
from benzene sulfonic acid which of
the following reaction takes place:
A. hydration
B. dehydration
c. chlorination
D. nitratration
12
346 The coal tar fraction which contains
phenol is:
( A . ) middle oil
B. green oil
c. heavy oil
D. light oil
12
347 How is phenol manufactured by
Cumene process?
12
348 When 4 -pentene-1-ol is treated with aqueous bromide, a cyclic bromosubstituted ether is formed
rather than expected bromohydrine. Select the explanation that best
account for the result.
A. The ether is the result of a hydride shift in the initially formed carbocation
B. The ether is formed in the intramolecular nucleophilic attack on the initially formed bromonium ion
C. The reaction is initiated by the deprotonation of the ( O H ) group
D. The initially formed bromonium ion undergoes an alkene shift to form new ( C-O ) bond
12
349 Write any two methods of preparation of phenol. Give their corresponding equations. 12
350 Propan – 2 – ol on reacting with ( C l_{2} )
produces?
A. Trichloroethanol
B. Trichloroacetone
c. Acetone
D. None
12
351 Write the IUPAC Name of the following
structure
[
begin{array}{rl}
mathbf{C H}_{3}-underset{mathbf{U}}{mathbf{O}} mathbf{H}-mathbf{C} mathbf{H}-mathbf{C} mathbf{H}-mathbf{C} mathbf{H}_{3} \
mathbf{O} mathbf{H} & mathbf{O} mathbf{H}
end{array}
]
12
352 Question 16. Explain how does the -OH group attached to a carbon
benzene ring activate it towards electrophilic substitution?
Resonance effect due to-OH group.
12
353 189. When acetylene is passed into methanol at 160-200°C in
the presence of a small amount of potassium methoxide
and under pressure, the following is formed
(a) Polyvinyl alcohol (b) Divinyl ether
(c) Dimethyl ether (d) Methyl vinyl ether
12
354 topp
( mathrm{ClCH}_{2} mathrm{CH}^{14} mathrm{C} mathrm{H}_{2} mathrm{OC}_{2} mathrm{H}_{5} )
14
( mathrm{ClCH}_{2} mathrm{CHCH}_{2} mathrm{ONa} )
( mathrm{OC}_{2} mathrm{H}_{5} )
( underbrace{14}_{mathrm{CH}_{2}-mathrm{CHCH}_{2} mathrm{OC}_{2} mathrm{H}_{5}} )
( mathrm{C}_{mathrm{O}}^{mathrm{H}_{2}-} mathrm{CHCH}_{2} mathrm{OC}_{2} mathrm{H}_{5} )
12
355 Explain why ArOR ethers are cleaved to give RI and rather than Arl and ROH. 12
356 Which of the following alcohol has the highest boiling point?
A. Butan ( -2-o l )
B. ( 2- ) Methylpropan ( -2- ) ol
c. Propan ( -2- ) ol
D. Butan ( -1-o l )
12
357 Alcohols can be identified by the
reaction with sodium.
A. True
B. False
12
358 Assertion: o-phenol sulphonic acid on heating at ( 100^{0} C ) changes to ( mathrm{p} )
phenol sulphonic acid. Reason: Sulphonation of phenol is a reversible process.
A. If both Assertion and Reason are correct and Reason is the correct explanation of Assertion
B. If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion
C. If Assertion is correct but Reason is incorrect
D. If Assertion is incorrect but Reason is correct
12
359 Which of the following phenols has the
largest ( p K_{a} ) value (i.e. is least acidic)?
( A )
B.
( c )
( D )
12
360 Can we dry ethanol by anhydrous ( C a C l_{2} )
?
12
361 Reaction of sodium ethoxide and ethyl iodide will give:
A. ether
B. ethyl alcohol
c. acetaldehyde
D. acetic acid
12
362 Rank the following compounds in order
of decreasing acid strength (most
acidic ( rightarrow ) least acidic)
( mathbf{A} cdot 2>4>1>3 )
B. ( 1>3>4>2 )
( mathbf{c} cdot 3>1>2>4 )
D. ( 3>1>4>2 )
12
363 When ethyl alcohol reacts with ( B r_{2} ) in
presence of red phosphorus, the compound formed is:
A ( cdot C_{2} H_{6} )
в. ( P B r_{3} )
c. ( C H_{3} B r )
D. ( C_{2} H_{5} B r )
12
364 Which of the following will have a mesoisomer also?
A . 2- chlorobutane
B. 2,3 – dichlorobutane
c. 2,3 – dichloropentane
D. 2 – hydroxypropanoic acid
12
365 The functional group present in the final
product is :
A. ( O H )
в. СООН
( c . C H O )
D. None of the above
12
366 Which of the following is the most basic in character?
A ( . H_{2} O )
в. ( C H_{3} C H_{2} O H )
( mathbf{c} cdot C H_{3} O C H_{3} )
D. ( C H_{3} O H )
12
367 Select ( X ) and ( Y ) out of:
( M n O_{4}^{-} / O H^{-} )
I: ( boldsymbol{H} boldsymbol{C O}_{3} boldsymbol{H} )
B. X-II,Y- –
c. ( x-1, y- )
12
368 When 3 -methylbutan-2-ol is treated with HBr, the following reaction takes
place. What are the correct steps for formation of the above product?
[
begin{array}{c}
mathbf{C H}_{3}-underset{mathbf{C}}{mathbf{C}} mathbf{H}-mathbf{C H}-mathbf{C H}_{3} frac{mathbf{H B r}}{mathbf{I}} \
mathbf{U}_{3} mathbf{O H} \
mathbf{B H}_{3}-mathbf{C}-mathbf{C H}_{2}-mathbf{C H}_{3} \
mathbf{C H}_{3}
end{array}
]
A. Formation of carbocation ( rightarrow ) Nucleophilic attack by ( B r^{c} )
B. Formation of carbocation ( rightarrow 1,2 ) hydride shift Nucleophilic attack by ( B r^{circ} )
c. Formation of carbocation ( rightarrow 1,2 ) methyl shift Nucleophilic attack by ( B r^{ominus} )
D. None of these
12
369 Phenol reacts with acetone in the
presence of conc. Sulphuric acid to form
( a C_{15} H_{16} O_{2} ) product. The structural
formula of the product is:
( A )
B.
c. ( _{X} begin{array}{l}O-C_{6} H \ O C_{6} H_{5}end{array} )
( D )
12
370 ( A 3^{o} ) alcohol as given can be obtained by
the reaction of ( P h M g B r ) and:
This question has multiple correct options
A. ethyl carbonate
B. benzophenone
c. ethyl benzoate
D. benzamide
12
371 Consider the following reaction:
( boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{O} boldsymbol{H}+boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} rightarrow boldsymbol{P} boldsymbol{r} ) oduct
Among the following, which one cannot be formed as a product under my conditions?
A. Ethylene
B. Ethyl hydrogen sulphate
c. Acetylene
D. Diethyl ether
12
372 Which of the following will exhibit
highest boiling point?
A. ( C H_{3} C H_{2} O C H_{2} C H_{3} )
в. ( C H_{3} C H_{2} C H_{2} C H_{2} C H_{2} O H )
c. ( C H_{3} C H_{2} C H_{2} C Hleft(C H_{3}right) O H )
D. ( C H_{3} C H_{2} Cleft(C H_{3}right)_{2} O H )
12
373 What is the product formed?
[
mathrm{CH}_{2}=mathrm{CH}-left(mathrm{CH}_{2}right)_{3}-mathrm{CH}_{2}-mathrm{OH} stackrel{mathrm{PCC}}{longrightarrow}
]
12
374 Sodium benzene sulphonate after
reaction with ( N a O H ) undergoes acidic hydrolysis, the compound formed would be:
A. phenol
B. benzoic acid
c. benzene
D. disodium benzaldehyde
12
375 Show how would you synthesize the given alcohol from appropriate alkenes. 12
376 Identify the lettered compounds ( D ) to ( G )
in the following reaction schemes.
12
377 Which of the following compound will have highest boiling point?
A. water
B. Ethanol
c. Methanol
D. Dimethylethene
12
378 What will react with ( C H_{3} M g B r )
followed by decomposition with ( boldsymbol{H}_{3} boldsymbol{O}^{oplus} )
to give ( 2^{circ} ) alcohol.
A. ( C H_{2}=C H O H )
в. ( C H_{3} C H O )
( c )
D. None of these
12
379 In which of the following solvents, KI has highest solubility? The dielectric
constant ( (epsilon) ) of each liquid is given in
parentheses.
A ( cdot C_{6} H_{6}(epsilon=0) )
B. ( left(C H_{3}right)_{2} C O(epsilon=21) )
c. ( C H_{3} O H(epsilon=32) )
D. ( C C l_{4}(epsilon=0) )
12
380 Which of the following statement is not
correct?
A. Phenol is neutralised by sodium carbonate
B. Phenol is used to prepare analgesic drugs
C. Solubility of phenol in water is more than that of chlorobenzene
D. Boiling point of o-nitrophenol is lower than that of ( p ) nitrophenol
12
381 The compound which gets dissolved in
water is :
A. ( C_{2} H_{6} )
в. ( C_{2} H_{4} )
c. ( C_{2} H_{2} )
D. ( C_{2} H_{5} O H )
E ( cdot C_{3} H_{8} )
12
382 In the reaction of phenol with ( boldsymbol{C} boldsymbol{H} boldsymbol{C l}_{3} )
and aqueous ( N a O H, ) the electrophile attacking the ring is:
A. ( C H C l_{3} )
в. ( C H C l_{2} )
( mathbf{c} cdot: C C l_{2} )
D. ( C O C l_{2} )
12
383 ( left(boldsymbol{C O}+boldsymbol{H}_{2}right)+boldsymbol{H}_{2}^{boldsymbol{6} 73 boldsymbol{k}, 300 a t boldsymbol{m}, / C r_{2}} overrightarrow{boldsymbol{O}_{3}-boldsymbol{Z} n boldsymbol{O}} )
The above shown reaction may by used for manufacture of:
A. ( H C H O )
в. ( C H_{3} ) СООН
с. НСООН
D. ( C H_{3} O H )
12
384 Phenol on treatment with ( d i l . H N O_{3} )
gives two products ( P ) and ( Q . P ) is steam
volatile but ( Q ) is not. ( P ) and ( Q ) are,
respectively:
( A )
B.
( c )
D.
12
385 Match the compounds in Column I with their characteristics/tests/reactions
( (s) )
reagent(s)/stereochemistry/isomer(s) given in Column II. Matching can be one
or more than one.
Column I Column I
Reaction ( quad ) Product and name of the reaction
12
386 Ethyl alcohol and phenol both contain OH group. Why phenol is acidic and alcohol is neutral in nature? Give
reason.
12
387 Explain why propanol has higher boiling point than that of the hydrocarbon, butane? 12
388 Butane has a ( _{–}-_{-}–_{-} ) boiling point to that of propanol.
A. higher
B. similar
c. lower
D. none of these
12
389 The correct order of increasing dissociation constant of the following compounds is:
( A cdot|<I V<I<| )
B. IV < III < I <I
c. ( |V<|<mid<| )
D. IV <I<II<III
12
390 Which of the following is not a characteristic of alcohol?
A. They are lighter than water.
B. Their boiling points rise fairly uniformly with rising molecular weight
C. Lower members are insoluble in water and organic solvents but the solubility regularly increases with molecular mass.
D. Lower members have a pleasant smell and burning taste, higher members are colourless and tasteless.
E. Higher members have a pleasant smell and burning taste, lower members are colourless and tasteless.
12
391 Structure of methyl propyl ether (methoxypropane) is:
A ( cdot C H_{3}-C H_{2}-C H_{3} )
в. ( C H_{3}-underset{O}{|}-O H )
c. ( C H_{3}-O-C_{3} H_{7} )
D. ( C H_{3}-C-C H_{3} )


( o )
E ( cdot C H_{3}-C H_{2}-N H_{2} )
12
392 toppr
Q Type your question
( (mathbf{A}) )
COO
This question has multiple correct options
A. The products (B) and (D), respectively, are:
and
B. The products (B) and (D), respectively are:
and
c. Phenol cannot be chlorinated because the ring is
susceptible to oxidation by ( C 1_{2} )
ation of
(C) from
(B) proceeds by Arsn addition-elimination
12
393 How can you synthesize Ethanol from
Ethene?
12
394 Glycerol does not contain
alcoholic group.
A . ( 1^{circ} )
B . ( 2^{circ} )
( c cdot 3^{0} )
D. ( 1^{0} ) and ( 2^{0} )
12
395 Reagent R2
Reagent R
118.
11lllll
НО ОН
НО ОН
R, and R, are
(a) Cold alkaline KMnO4, OsOZ/H,O,
(b) Cold alkaline KMnO4, HCO H and H,0+
(c) Cold alkaline KMnO, CH,CO,H
(d) C,H,CO,H, HCO,H
12
396 Compound/s which give/s alcohol on
reduction by ( L i A l H_{4} ) is/are:
This question has multiple correct options
( A )
B.
c.
D.
12
397 When excess of ( C_{2} H_{5} O H ) at ( 140^{0} C )
reacts with concentrated ( H_{2} S O_{4}, ) the
product obtained is:
A. diethyl ether
B. diethyl sulphate
c. ethylene
D. ethylene hydrogen sulphate
12
398 Explain Kolbe-Schmitt reaction and Fries-rearrangement reaction. 12
399 Hydroboration of isobutylene followed by oxidative alkaline hydrolysis gives:
A. ( 1- ) Butanol
B. ( 2- ) Butanol
c. Isobutyl alcohol
D. Tertiary butyl alcohol
12
400 Condensation of phenol with acetone
gives:
A. bisphenol-A
B. catechol
c. resorcinol
D. hydroquinone
12
401 The IUPAC name of the above shown
compound is:
A. but-2-ene-2,3-diol
B. Pent-2-ene-2,3-diol
C. 2-methylbut-2-ene-2,3-diol
D. hex-2-ene-2,3-diol
12
402 Write the equations involved in the
following reaction.
Williamson ether synthesis.
12
403 ( boldsymbol{C H}_{2}=boldsymbol{C H}-boldsymbol{C H}_{2}-boldsymbol{O H} frac{1 . boldsymbol{K H}}{2 . boldsymbol{P h C H}_{2} boldsymbol{B r}} )
( boldsymbol{A} frac{1 . B_{2} H_{6}}{2 . H_{2} O_{2} / O H^{-}} boldsymbol{B} )
The end product (B) is:
( A )
в.
( c )
D.
12
404 The enzyme which converts glucose to ethyl alcohol is :
A. zymase
B. invertase
c. maltase
D. diastase
12
405 Epoxides are:
A. unsaturated ethers
B. mixed ethers
C . cyclic ethers
D. none of these
12
406 An equimolar quantities of ethanol and
propanol is heated with conc. ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} )
The product formed is /are?
A. ( C_{2} H_{5} O C_{2} H_{5} )
в. ( C_{3} H_{7} O C_{3} H_{7} )
c. ( C_{2} H_{5} O C_{3} H_{7} )
D. all of these
12
407 Question 9. Give the equations of reactions for the preparation of
phenol from cumene.
Oxidation of cumene into cumene hydroperoxide, then acidic hydrolysis.
12
408 Teritary alcohol is obtained as major
product in
( mathbf{A} cdotleft(C H_{3}right)_{2} C H-C H=C H_{2}^{text {oxymercution/demercution}} )
( mathbf{B} cdotleft(C H_{3}right)_{3} C-C H=C H_{2} stackrel{d i l H_{2} S O_{4}}{longrightarrow} )
( mathbf{C} cdotleft(C H_{3}right)_{2} C H-C H=C H_{2}^{H y d r o b o r a t i o n, O x i d a t i o n} )
D. All of the above
12
409 The IUPAC name of anisole is:
A. ethoxybenzene
B. methoxybenzene
c. propoxybenzene
D. butoxybenzene
12
410 8
8
8
8
8
12
411 A ( _{-1}-ldots_{text {diol has two hydroxyl }} )
groups on C atoms.
This question has multiple correct options
A. vicinal, adjacent
B. geminal, adjacent
c. vicinal, same
D. geminal, same
12
412 How is ethanol prepared from the following compounds:
1. Ethene
12
413 dcter
Question 12. Predict the products of the following reactions
(1) CH3-CH2-CH2–0–CH3 + HBr →
OC2H5
+ HBr –
Ques
OCH
Conc. H2SO4
Conc. HNO3
(iv) (CH3)3C-OCH, HI
12
414 An industrial method of preparation of
methanol is:
A. catalytic reduction of carbon monoxide in presence of ( Z n o-C r_{2} O_{3} )
B. by reacting methane with steam at ( 900^{circ} mathrm{C} ) with a nickel catalyst
C. by reducing formaldehyde with lithium aluminium hydride
D. by reacting formaldehyde with aqueous sodium hydroxide solution
12
415 An oxygen-containing organic compound was found to contain 52% carbon and ( 13 % ) of hydrogen. Its vapour density is ( 23 . ) The compound reacts with sodium metal to liberate hydrogen. A functional isomer of this compound is :
A. ethanol
B. ethanal
c. methoxy methane
D. methoxy ethane
12
416 Propanone on reaction with alkyl magnesium bromide followed by hydrolysis will produce?
A. Primary alcohol
B. Secondary alcohol
c. Tertiary alcohol
D. Carboxylic acid
12
417 Give reasons:
p-nitro phenol is more acidic than ( p ) methyl phenol.
12
418 Question 2. Identify allylic alcohols in the above examples.
Following groups are included in allylic alcohols.
H
CH2=CH-C-OH
CH=CH-CH2-OH CH2=CH-C-OH
Primary (10)
allyl alcohol
Secondary (29)
allyl alcohol
Tertiary (3)
allyl alcohol
12
419 8
8
8
8
12
420 Which of the following is strongly acidic?
A. Phenol
B. O-cresol
c. p-nitrophenol
D. p-cresol
12
421 Benzene sulphonic acid is:
( A ). basic
B. acidic
c. neutral
D. both A and B
12
422 aluenyue
Question 18. Explain the following with an example.
(i) Kolbe’s reaction.
(ii) Reimer-Tiemann reaction.
(iii) Williamson ether synthesis.
(iv) Unsymmetrical ether.
12
423 Which of the following represents the
correct IUPAC name for the
compounds concerned?
a) But-3-yn-1-ol
b) But-4-ol-1-yne
12
424 Which compound is the most soluble in
water?
A. chloroethane
B. Ethanol
c. Ethanal
D. Ethylene glycol
12
425 Esterification of ( (-)- ) lactic acid with
methanol yields ( (+)- ) methyl lactate.
Assuming that there are no side reactions, what is true about this
reaction?
A ( cdot ) An ( S N_{2} ) reaction has occurred, inverting the absolute configuration of the chiral centre.
B. ( A n S N_{1} ) reaction at the chiral centre has inverted the optical rotation.
C. A diastereomer has been produced; diastereomers have different physical properties, including optical rotation
D. optical rotation is not directly related to absolute configuration, so the change in sign of rotation is merely a coincidence.
12
426 ( C H_{3} )
The reaction, ( C H_{3}-C H-C H_{2}- )
( boldsymbol{O}-boldsymbol{C H}_{2} boldsymbol{C H}_{3}+boldsymbol{H} boldsymbol{I} stackrel{boldsymbol{Delta}}{longrightarrow} ? )
Which of the following compound will be formed?
( mathbf{A} cdot C H_{3}-C H-C H_{2}-I+C H_{3} C H_{2} O H )
( left._{C H_{3}}^{prime}right|_{C} )
в. ( C H_{3}-C H-C H_{3}+C H_{3} C H_{2} O H )
I ( _{C H_{3}} )
c. ( C H_{3}-underset{C H_{3}}{C H}-C H_{2} O H+C H_{3} C H_{3} )
D. ( C H_{3}-C H-C H_{2} O H+C H_{3} C H_{2} I )
[
begin{array}{l}_{C H_{3}}end{array}
]
12
427 Hydrogen bonding is absent in ether
A. True
B. False
12
428 Write the formula of compound ( boldsymbol{A} )
formed.
12
429 How is carbolic acid prepared from the following compound?
(i) Aniline
(ii) Chlorobenzene and steam at ( 698 mathrm{K} ) ?
Draw structure of DDT. Write its
environmental effects.
Mention two physical properties of carbolic acid.
12
430 Identify D:
( mathbf{A} cdot C H_{3} O H )
B ( cdot C_{2} H_{6} O )
( mathbf{c} cdot C_{2} H_{5} O )
( mathrm{D} cdot C_{4} H_{10} mathrm{O} )
12
431 Question 10. Write chemical reaction for the preparation of phenol
chlorobenzene.
Reaction of chlorobenzene with sodium hydroxide followed
acidification of the product formed.
de followed
12
432 Which of the following products are not correctly matched in the given
reactions?
A ( cdot C_{2} H_{5} O C H_{3}+H B r frac{373 K}{longrightarrow} C_{2} H_{5} O H+C H_{3} B r )
B . ( C_{2} H_{5} O C_{2} H_{5}+2 H I rightarrow C_{2} H 5 I+C_{2} H_{5} O H )
C ( cdot C_{2} H_{5} O C_{2} H_{5}+H C C l stackrel{text {Exess}}{text {Cold}}left[left(C_{2} H_{5}right)_{2} O^{+} Hright] C l )
D. ( left(C H_{3}right)_{3} C O C_{2} H_{5} stackrel{H I}{longrightarrow}left(C H_{3}right)_{3} C I+C_{2} H_{5} O H )
12
433 ( boldsymbol{C H}_{3} boldsymbol{B r}+boldsymbol{M} boldsymbol{g} stackrel{text {Ether}}{longrightarrow} boldsymbol{A} stackrel{boldsymbol{H C H O}}{longrightarrow} )
( boldsymbol{B} stackrel{boldsymbol{H O H}}{longrightarrow} boldsymbol{C} )
Compound ( boldsymbol{C} ) is:
A. acetic acid
B. acetaldehyde
c. ethyl alcohol
D. formic acid
12
434 Methyl alcohol is treated with conc HI
and red P. The main product obtained is
?
A. ( C H_{3} O H )
в. ( C H_{4} )
c. ( C H_{2} I_{2} )
D. ( P H_{3} )
12
435 Reaction of which among the following ether with ( H I ) in cold leads to the
formation of methyl alcohol?
A. Ethyl methyl ether
B. Methyl propyl ether
c. Isopropyl methyl ether
D. tert-butyl methyl ether
12
436 Assertion
Both Grinard reagent and dialkyl cadmium react with acid chlorides to
form tert. alcohols.
Reason
Grignard reagents are as reactive as diakyl cadmium.
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
437 Hydrolysis of an ester gives acid ( A ) and alcohol B. The acid reduces Fehlings solution. Oxidation of alcohol B gives
acid A. The ester is:
A. Mehthyl formate
B. Ethyl formate
c. Methyl acetate
D. Ethyl acetate
12
438 When a mixture to ( t- )butyl alcohol and
ethyl alcohol is heated with conc.
( H_{2} S O_{4} ) a single ether product is obtained. Identify the product giving
proper reasons.
12
439 How does anisole react with ( H N O_{3} ) in
presence of Suphuric acid?
12
440 In which of the following reactions, the product obtained is tert-butyl methyl ether?
B. ( quad H_{3} C-underset{C}{C}^{C H_{3}}-B r+C H_{3} O H stackrel{O H^{-} N a}{rightarrow} )
c.
[
C H_{3} B r+N a^{+} O^{-}-underset{C_{3}}{C_{3}}^{C H_{3}}-C H_{3} rightarrow
]
D. ( C H_{3}-O^{-} N a^{+}+C H_{3}-C_{C}-B r rightarrow )
[
_{C H_{3}}^{-}
]
12
441 Ethers containing up to how many carbon atoms are soluble in water, due
to their hydrogen bond formation with water molecules?
( A cdot 3 )
B. 4
( c .5 )
D.
12
442 Major products formed in the reaction of t-butyl methyl ether with ( H I ) are
( A )
and
and ( quad mathbf{H}_{3} mathbf{C}-mathbf{O H} )
( c )
( mathbf{H}_{3} mathbf{C}-mathbf{O H} quad ) and
D
and ( mathbf{H}_{3} mathbf{C}-mathbf{O} mathbf{H} )
12
443 Metallic sodium reacts with methanol
and ethanol to give ( O_{2} ) gas.
A. True
B. False
12
444 Enzymes involved used in the fermentation of cane sugar to alcohol?
A. Diastase, invertase
B. Invertase, zymase
c. Diastase, zymase
D. Maltase, zymase
12
445 How is diethyl ether prepared by continuous etherification process? 12
446 STATEMENT-1: The boiling point of
( C_{2} H_{5} O H ) is less than that of ( H_{2} O )
though the molecular weight of
( C_{2} H_{5} O H ) is more than that of water.
STATEMENT-2: ( C_{2} H_{5} O H ) molecules are
not highly associated through hydrogen
bonding as in water.
A. STATEMENT-1 is True, STATEMENT-2 is True; STATEMENT-2 is a correct explanation for STATEMENT-
B. STATEMENT-1 is True, STATEMENT-2 is True; STATEMENT-2 is NOT a correct explanation for STATEMENT-1
C. STATEMENT-1 is True, STATEMENT-2 is False
D. STATEMENT-1 is False, STATEMENT-2 is True
12
447 Reaction of acetic acid, ( C H_{3} C O_{2} H ) 12
448 The antiseptic action of dettol is due to:
A. Chloro benzene
B. Chloroxylenol
c. chloroquine
D. chloramphenicol
12
449 An alcohol of formula ( C_{9} boldsymbol{H}_{12} boldsymbol{O} ) reacts
with ( N a_{2} C r_{2} O_{7} ) to from a compound
having formula ( C_{9} boldsymbol{H}_{10} boldsymbol{O} ). The original alcohol might be
( langlesquarerangle-mathrm{cH}_{2}-mathrm{cH}_{2}-mathrm{cH}_{2}-mathrm{o} )
B.
( c )
D
12
450 Which of the following is correct order of
acidic strength for the given
compounds:
A ( . I>I I>I I I>I V )
( V )
В. ( I I>I>I I I>I V )
c. ( I I>I I I>I>I V )
( . I>I I I>I I>I V )
( V )
12
451 Methanol is a:
A. yellow coloured liquid
B. brown coloured liquid
C . colourless liquid
D. blue coloured liquid
12
452 Products ( A ) and ( B ) respectively are
4
( B )
c. Reaction is not possibl
D. None of thes
12
453 Match the column ( I ) and ( I I ) 12
454 With boiling water or steam, diethylether results in the formation of:
A ( cdotleft(C_{2} H_{5}right)_{2} S O_{4} )
в. ( C_{2} H_{5} O H )
c. ( C H_{2}=C H_{2} )
D. ( C_{2} H_{5} O H+C_{2} H_{5} S O_{4} )
12
455 Which of the following is not correctly
matched with its uses?
A. Methanol: As a solvent for paints, varnishes etc.
B. Ethanol: For denaturing spirit, in manufacture of formaldehyde.
C. Ethers: To provide inert medium for chemical reactions, as anaesthetic.
D. All are correctly matched.
12
456 Statement-1: In the fermentation
process of molasses, along with yeast,
( left(N H_{4}right)_{2} S O_{4} ) and ( left(N H_{4}right)_{3} P O_{4} ) are
added.
Statement-2: Both ( left(N H_{4}right)_{3} P O_{4} ) and
( left(N H_{4}right)_{2} S O_{4} ) act as food and help in the
growth of yeast.
A. Statement-1 is True, statement-2 is True; statementis a correct explanation for statement-
B. Statement-1 is True, statement-2 is True; statementis NOT a correct explanation for statement-
c. Statement- – is True, statement-2 is False
D. Statement- 1 is False, statement- 2 is True
12
457 Picric acid is a yellow coloured compound. Its chemical name
is
A. m-nitrobenzoic acid
B. 2,4,6 -trinitropheno
c. 2,4,6 -tribromophenol
D. p-nitrophenol.
12
458 From methyl alcohol we get:
A. bakelite, a hard plastic
B. the rubber neoprene
C . the plastic perspex
D. sponge rubber
12
459 For the following reaction, select the
statement that best describes the
change.
( boldsymbol{R} boldsymbol{C H}_{2} boldsymbol{O H}+ )
( boldsymbol{P C C} quadleft[boldsymbol{C _ { 5 }} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H}^{+} boldsymbol{C l} boldsymbol{C r} boldsymbol{O}_{3}^{-}right] longrightarrow )
A. The alcohol is oxidized to an acid, and the ( C r(V I) ) is reduced
B. The alcohol is oxidized to an aldehyde, and the ( C r(V I) ) is reduced
c. The alcohol is reduced to an aldehyde, and the ( operatorname{Cr}(I I I) ) is oxidized
D. The alcohol is oxidized to a keton, and the ( C r(V I) ) is reduced
12
460 Under suitable
condition temperature,pressure and catalyst,methanol can be obtain by:
A. partial oxidation of hydrocarbons
B. reacting ( H_{2} ) with ( C O )
C. reacting ( H_{2} ) with ( C O_{2} )
D. All the above
12
461 ( O H )
( C H_{3}-C H_{2}-C H-C H_{2}-C H_{2}- )
( underset{l}{C} boldsymbol{H}-boldsymbol{C H}_{2}-boldsymbol{C H}_{3} )
( boldsymbol{C H}_{3} )
The IUPAC name of the compound is:
A. 6 -methyl-3-hexanol
B. 6-Methy|-3-octanol
c. 1-methy|-4-hexanol
D. 4-methyl-1-octanol
12
462 Which of the following statements
is/are correct?
This question has multiple correct options
A. The nitration of phenol is faster than phenyl acetate
B. The reaction of ( P h O^{ominus} ) is faster than ( p-N C- )
( C_{6} H_{4} O^{ominus} ) with ( P h C H_{2} C l )
C. Base-catalysed hydrolysis of p-nitrophenyl acetate is faster than phenyl acetate
D. Acid-catalysed esterification of PhOH is faster than ( p ) nitrophenol with MeCOOH
12
463 Suggest a sequence of reactions
suitable for preparing propanol from ( 2- ) propanol.
12
464 toppr
Q Type your question
acid such as conc. ( H_{2} S O_{4} ) as a catalyst.
The reaction is reversible and generally
the equilibrium constant for
the esterification is close to ( 1 . ) As it is a
reversible reaction, different methods
are used to increase the yield of ester. It is established that the mechanism of
esterification under such conditions
involves initial protonation of the acid
followed by the attack of the alcohol as
a nucleophile.
The correct statement(s)
is/are
This question has multiple correct options
A. When esterification is carried out using molar ratio of acid and alcohol as 1: 10 , the yield of the ester with respect to the acid should be close to ( 90 % )
B. The function of conc.( H_{2} S O_{4} ) is also to increase the free energy change of the reaction and thereby increasing the equilibrium constant
C. When an ester is heated with acidified water the protonation will be more favourable at the acyl oxygen atom than at the alkoxy oxygen atom
D. When butyl hexanoate is heated with a large excess of methanol in the presence of a small quantity of conc. ( H_{2} S O_{4} ), methyl hexanoate is the major product
12
465 Which of the following species can act as the strongest base?
A. ( -O H )
B. ( -O R )
( mathbf{c} cdot-O C_{6} H_{5} )
( D )
12
466 The correct order of boiling point for
primary ( (1), ) secondary (2) and tertiary
(3) alcohols is:
( mathbf{A} cdot 1>2>3 )
В. ( 3>2>1 )
c. ( 2>1>3 )
D. ( 2>3>1 )
12
467 Explain the following reactions with
suitable example:
(a) Reimer-Tiemann reaction
(b) Cannizaro reaction
(c) Aldol condensation
(d) Sandmeyer reaction
12
468 Which one of the following reaction conditions are used for preparing diethyl ether from ethyl alcohol?
A ( cdot H I / 200^{circ} C )
в. Сопс.Н( _{2} ) S ( O_{4} / 140^{circ} mathrm{C} )
c. ( N a O H / 70^{circ} mathrm{C} )
D. ( operatorname{NaOC}_{2} mathrm{H}_{5} / 27^{circ} mathrm{C} )
12
469 Ethers like ROR can be cleaved by concentrated HI but not by HCl because:
A . ( I^{-} ) is a weaker nucleophile than ( C l^{-} )
B. ( I^{-} ) is stronger nucleophile than ( C l^{-} )
c. ( S_{N} 1 ) mechanism carried out in this reaction is rapidly in presence of HI
D. None of the above
12
470 Reaction of acids with alcohols is also
known as:
A. esterification
B. saponification
c. alkalisation
D. none of these
12
471 Catalytic dehydrogenation of a primary alcohol gives a:
A. secondary alcohol
B. aldehyde
c. ketone
D. ester
12
472 Select the correct order of boiling point:
A. diethyl ether ( >n ) -butyl alcohol ( >n ) -butaraldehyde ( >n- ) pentane
B. n-butyl alcohol > n-butaraldehyde > n-pentane> diethylether
C. n-pentane ( >n ) -butaraldehyde ( >n ) -butyl alcohol ( > ) diethylether
D. n-butyl alcohol > n-butaraldehyde > diethylether > npentane
12
473 In the sequence of reactions (A) is:
( (A) stackrel{N a}{rightarrow}(B)^{C_{2} H_{5} I / h e a t} )
( (boldsymbol{C}) stackrel{boldsymbol{H I} / text {heat}}{rightarrow} boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{I} )
A . acetic acid
B. methyl alcohol
c. ethyl alcohol
D. propionic acid
12
474 A compound ( boldsymbol{X} ) with molecular formula
( C_{3} H_{8} O ) can be oxidized to a compound
( Y ) with the molecular formula ( C_{3} H_{6} O_{2} )
The number of double bonds in ( Y ) is:
12
475 How does the diethyl ether react with the following reagents?
a) ( boldsymbol{O}_{2} / ) long contact
b) ( H I ) is excess
c) ( P C l_{5} )
d) ( H O H )
12
476 Consider the reactions:
Identify ( boldsymbol{A}, boldsymbol{X}, boldsymbol{Y} ) and ( boldsymbol{Z} )
Silver mirror observe
A ( . A- ) Ethanol, ( X ) – Acetaldehyde, ( Y ) – Butanone, ( Z ) Hydrazone
B. ( A- ) Methoxymethane, ( X ) – Ethanoic acid, ( Y ) –
Acetate ion, ( Z ) – hydrazine
C. ( A- ) Methoxymethane, ( X ) – Ethanol, ( Y ) Ethanoic acid, ( Z ) – Semicarbazide
D. ( A- ) Ethanal, ( X ) – Ethanol, ( Y-B u t-2- ) enal, ( Z ) –
Semicarbazone
12
477 In the following reaction Phenol( stackrel{Z n d u s t}{rightarrow} X frac{C H_{3} C l}{a n h . A l c l_{3}} )
( boldsymbol{Y}^{boldsymbol{a l k} cdot boldsymbol{K} underline{M n} boldsymbol{O}_{4} / triangle} boldsymbol{Z} )
The product ( Z ) is:
A. toulene
B. benzaldehyde
c. benzoic acid
D. benzene
12
478 toppr
Q Type your question
( A )
B.
( c )
( D )
12
479 The number of carbon atoms present in
a molecule of simple ether is:
A. always even
B. always odd
c. either even or odd
D. unpredictable
12
480 The solubility of alcohols in water gradually increases with molecular weight
A. True
B. False
12
481 Explain how does the OH group
attached to a carbon of benzene
ring activate it towards electrophilic substitution?
12
482 The correct structure of ( 7- )
Hydroxyheptan – 2- one is:
( mathbf{A} cdot H O-C H_{2}-left(C H_{2}right)_{4}-C H_{2}-C O C H_{3} )
B ( cdot H O-C H_{2}-left(C H_{2}right)_{3}-C H_{2}-C O C H_{3} )
( mathbf{c} cdot H O-C H_{2}-left(C H_{2}right)_{3}-C H_{2}-C O C H_{2} C H_{3} )
( mathbf{D} cdot C H_{3}-C H(O H)-left(C H_{2}right)_{3}-C H_{2}-C O C H_{3} )
12
483 Which of the following sequences of
reactions must be carried out
respectively to get a secondary alcohol
for primary alcohol?
A. Oxidation reaction with ( R-M g-I ), hydrolysis ( / H^{+} )
B. Oxidation reaction with ( R-M g-C l ), hydrolysis/ ( H^{+} )
C . Hydrolysis/ ( H^{+}, ) oxidation reaction with ( R-M g-O )
D. Oxidation
12
484 The IUPAC name is:
A. 2-ethyl-2-butanol
B. 3-Methyl-3-pentanol
c. 3-ethyl-3-methyl-3-pentanol
D. 1,1-diethyl ethanol
12
485 The organic compound which when mixed with ethyl alcohol, [ethanol],
makes a spurious is:
A. methanol
B. methanoic acid
c. methanal
D. ethanoic acid
12
486 ArOR ethers are cleaved to give ( boldsymbol{R I} )
and ( A r O H ) rather than ( A r I ) and ( R O H )
A. True
B. False
12
487 Which of the following reactions will yield propan-2-ol? This question has multiple correct options
A ( cdot C H_{2}=C H-C H_{3}+H O H stackrel{H}{rightarrow} )
B. ( C H_{3}-C H O^{C H_{3} M g B r / H O H} rightarrow^{C H} )
( mathrm{c} cdot mathrm{CH}_{2} mathrm{O}^{C_{2} mathrm{H}_{5} text { МуТ } / text {НОН}} )
D. None of the above
12
488 The treatment of a compound ( X ) with
( H I O_{4} ) produces ( C H_{3} C H O ) and
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H O} ). The compound ( mathbf{X} ) is :
A. ( C H_{3} C H=C H C H_{2} C H_{3} )
в. ( C H_{3} C H(O H) C H(O H) C H_{2} C H_{3} )
c. ( C H_{3} C H=C H C H=C H_{2} )
D. ( C H_{3} C H(O H) C H_{2} C H O )
12
489 For the cleavage of ethers by halogen
acids, the order of reactivity of halogen acids is:
A. ( H I>H B r>H C l )
в. ( H B r>H I>H C l )
c. ( H C l>H B r>H I )
D. ethers do not undergo cleavage
12
490 Phenol is more acidic than:
A . acetic acid
B. p-methoxyphenol
c. p-nitropheno
D. 2, 4 dinitropheno
12
491 The best reagent which can carry out this conversion is:
[
mathrm{ch}_{3} frac{mathrm{cH}_{3}}{mathrm{C}-mathrm{cH}_{2}-mathrm{oH}} frac{mathrm{reagent}}{mathrm{CH}_{3}} mathrm{CH}_{3} frac{mathrm{CH}_{3}}{mathrm{CH}_{3}}
]
A. conc. ( H C l )
в. ( H C l, Z n C l_{2} )
( c cdot s O C l_{2} )
D. aqueous KOH
12
492 What is IUPAC name of the following
compound?
( mathbf{C H}_{3}-mathbf{C H}_{2}-mathbf{C H}_{2}-mathbf{O H} )
A. Propane-1-ol
B. Propane-2-ol
c. Ethane-1-ol
D. Ethane-2-ol
12
493 When phenol reacts with chloroform and an alkali like ( N a O H, ) the
compound formed is salicylaldehyde. If
we use carbon tetrachloride in place of
chloroform, the product obtained is:
A. salicylic acid
B. cyclohexanol
c. phenolphthalein
D. salicylaldehyde
12
494 Which of the following is the correct order of boiling point?
A. chloroethane < ethane < ethanol
B. ethane < chloroethane < ethanol
c. ethanol ( < ) ethane ( chloroethane > ethanol
12
495 Alcohols react with active metals e.g. Na, K etc. to give corresponding alkoxides. Write down the decreasing order of reactivity of sodium metal towards primary, secondary and tertiary alcohols. 12
496 Select the correct statement(s) about
ether.
This question has multiple correct options
A. Symmetrical ethers have zero dipole moment.
B. Unsymmetrical ethers don’t have zero dipole moment.
C. Ethers have lower boiling point as compared to alcohols.
D. There extent of H-bonding in ethers are comparable to that in alcohols.
12
497 When phenol is distilled with ( Z n ) dust, the main product is :
A. Biphenyl
B. Benzene
c. Benzaldehyde
D. Phenolphthalein
12
498 topp ( E )
Q Type your question
A ( (text { curlyvee }) C H_{3} C H_{2} C H-C H_{2} O H )
CHa
( (X) rightarrow overbrace^{mathrm{OH}} mathrm{CH}_{2}^{-} prod_{mathrm{OH}}^{mathrm{CH}-mathrm{OCH}_{3}} )
( (X) rightarrow overbrace^{mathrm{OH}} mathrm{CH}_{2}-underset{mathrm{O}}{|}^{mathrm{C}-mathrm{OCH}_{3}} )
D ( cdot(curlyvee) C H_{3} C H_{2} C H_{2} C H_{2} C H_{2} O H )
( (X) rightarrow overbrace{[1]}^{mathrm{O}} mathrm{CH}_{2}-underbrace{mathrm{C}-mathrm{O} mathrm{CH}_{2} mathrm{OH}} )
12
499 Explain the following reactions:
(i) Reimer-Tiemann reaction
(ii) Williamson synthesis
12
500 Convert t-Butanol to the given
compound.
12
501 The correct order of strength of acidity
of the following compounds is:
A ( . ) (ii) ( >(mathrm{i})>(text { iii })>(text { iv }) )
B. (i) > (ii) > (iii) > (iv)
( c cdot(text { iv })>(text { iii })>(text { ii })>(i )
( D cdot(text { iv })>(text { iii })>(i)>(text { ii }) )
12
502 The correct order of boiling point is:
A ( . I>I I>I I I )
B. ( I I I>I I>I )
c. ( I I>I>I I I )
I I ( I>I I I>I I )
1
12
503 In the hydrolysis of organic chloride in
the presence of a large excess of water,
( boldsymbol{R C l}+boldsymbol{H}_{2} boldsymbol{O} rightarrow boldsymbol{R O H}+boldsymbol{H} boldsymbol{C l} )
A. Molecularity and order of reaction both are 2
B. Molecularity is 2 but order of reaction is 1
c. Molecularity is 1 but order of reaction is also 1
D. Molecularity is 1 and order of reaction is also 1
12
504 Give the decreasing order of reactivity
of the following compounds with HBr.
( (I) )
( (mathrm{II}) )
( (mathrm{III}) )
( (mathrm{IV}) )
( mathbf{A} cdot I I I>I V>I I>I )
В. ( I I I>I I>I V>I )
c. ( I I I>I I>I>I V )
D. ( I I>I I I>I V>I )
12
505 ( boldsymbol{H} boldsymbol{O}-boldsymbol{C} boldsymbol{H}_{2}-boldsymbol{C} boldsymbol{H}_{2}-underset{_{O H}}{_{I}}-boldsymbol{C} boldsymbol{H}_{2}- )
( boldsymbol{O H} frac{boldsymbol{H I O}_{4}}{boldsymbol{Delta}} )
Identify the product of the above reaction.
12
506 Question 10. Arrange the following compounds in decreasing order of
acidity. H,O, ROH, HC=CH
12
507 The correct statements about squaric
acid?
acid
A. It is stronger acid than phenol
B. It can form two conjugate base
C. It can liberate ( C O_{2} ) from ( N a H C O_{3} )
D. The diconjugate base of squaric acid has all ( C-C )
bond lengths are equal
12
508 Question 19. Write the mechanism of acid catalysed dehydration of
ethanol to yield ethene.
Step involved in acid catalysed dehydration are
(1) Protonation of alcohol. (ii) Formation of carbocation
(iii) Elimination of a proton.
12
509 How is ethanol produced by
fermentation?
A. Using anaerobic conditions at ( 30^{circ} mathrm{C} )
B. Using anaerobic conditions at ( 450^{circ} mathrm{C} )
C . Using steam at ( 30^{circ} mathrm{C} )
D. Using steam at ( 450^{circ} mathrm{C} )
12
510 Question 4. Explain why propanol has higher boiling point than that
the hydrocarbon, butane?
Boiling point is directly proportional to the intermolecular forces existire
in a compound
the
Boiline
12
511 Chlorination of toluene in presence of
light and heat followed by treatment with aqueous NaOH gives:
A . o-cresol
B. p-cresol
c. Mixture of o-cresol and p-cresol
D. Benzoic acid
12
512 n the give reaction, the product(s) obtained is/are:
нн,ссн ( _{z} ) сн, о dect
( mathrm{CH}_{2}=mathrm{C}-mathrm{CH}_{2}-mathrm{CH}_{3} )
( mathrm{CH}_{3}-mathrm{C}=mathrm{CH}-mathrm{CH}_{3} )
( mathrm{CH}_{3}-mathrm{CH}-mathrm{CH}=mathrm{CH}_{2} )
12
513 Assertion
Kerogen is converted into liquid and gaseous hydrocarbons via a process known as catagenesis.
Reason
Kerogen is a waxy material obtained from inorganic matter
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
514 Question 5. Alcohols are comparatively more soluble in water than
hydrocarbons of comparable molecular masses. Explain this fact.
E Consider polar nature of water as well as alcohol; presence of hydrogen
bonding.
12
515 opp 12
516 The compound which has the lowest
boiling point is:
A ( cdot H_{2} O )
В ( cdot C_{2} H_{5} O H )
( mathbf{c} cdot C H_{3} O H )
D. ( C H_{3} O C H_{3} )
12
517 The alcohol which gives the most
stable carbonium ion on dehydration is:
A ( cdotleft(C H_{3}right)_{2} C H C H_{2} O H )
В . ( left(C H_{3}right)_{3} C-O H )
c. ( C H_{3} C H_{2} C H_{2} C H_{2} O H )
D. ( C H_{3}-C H-C H_{2} C H_{3} )
12
518 ( boldsymbol{C H}_{2}=boldsymbol{C H}_{2}+boldsymbol{H I} stackrel{A l C l_{3}}{rightarrow} boldsymbol{A} stackrel{A q . boldsymbol{K O H}}{rightarrow} )
( B^{c o n c . H_{2} S O_{4}} C,^{prime} C^{prime} i s: )
A. Ethoxy ethane
B. Ethanol
c. Ethanal
D. Acetone
12
519 An organic compound of molecular
formula ( C_{4} H_{10} O ) does not react with
sodium. In excess of ( boldsymbol{H} boldsymbol{I} ), it gives only
one type of alkyl iodide. The compound
is:
A. ethoxy ethane
B. 2-methoxy propan
c. 1-methoxy propane
D. 1-butanol
12
520 Which one of the following is a simple
ether?
A. ( C H_{3}-O-C_{2} H_{5} )
в. ( C_{6} H_{5}-O-C H_{3} )
c. ( C_{2} H_{5}-O-C_{2} H_{5} )
D. ( C_{3} H_{7}-O-C_{2} H_{5} )
12
521 How do you convert bromethane into
diethyl ether? Given the chemical equation of the reaction
12
522 Benzoylation of phenol in alkaline medium is known as
A. Friedel-craft’s reaction
B. Wurtz-Fittig reaction
c. Schotten-Baumann reaction
D. Sabatier Senderens reduction
12
523 Which of the following gives ethyl alcohol by the action of methyl magnesium halide followed by hydrolysis?
A. Formaldehyde
B. Acetaldehyde
c. Acetic acid
D. Methyl alcohol
12
524 Questions 11. Which of the following is an appropriate set of reactant
for the preparation of 1-methoxy-4-nitrobenzene and why?
ONa
Br
+ CH3ONa
+ CH3Br
NO
NO2
This reaction involves preparation of ether by Williamson synthesis. It
takes place by S2 attack of an alkoxide ion on primary alkyl halide.
12
525 You are given benzene, conc. ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} )
and ( N a O H . ) Write the equations for the preparation of phenol using these
reagents.
12
526 4
The IUPAC name of ( C H_{3}-C H- )
( boldsymbol{C H}_{3} )
( C H_{2}-C H-C H O: )
A. 4 -hydroxy – 2 – methyl pentanal
B. 2-hydroxy -4- methyl pentanal
C. 4 -hydroxy-2-methyl pentanol
D. 2-hydroxy-4- methyl pentanol
12
527 The correct sequence of decreasing acidity is:
( mathbf{A} cdotleft(C H_{3}right)_{3} C O H>left(C H_{3}right)_{2} C H O H>C_{2} H_{5} O H> )
( C H_{3} O H )
B ( cdot C H_{3} O H>C_{2} H_{5} O H>left(C H_{3}right)_{2} C H O H> )
( left(C H_{3}right)_{3} C O H )
( mathbf{c} cdot C_{2} H_{5} O H>C H_{3} O H>left(C H_{3}right)_{3} C O H> )
( left(C H_{3}right)_{2} C H O H )
( mathbf{D} cdotleft(C H_{3}right)_{2} C H O H>left(C H_{3}right)_{3} C O H>C_{2} H_{5} O H> )
( C H_{3} O H )
12
528 Question 12. You are given benzene, conc. H,SO, and NaOH. Write the
equations for the preparation of phenol using these reagents.
() Sulphonation of benzene.
(ii) Reaction with NaOH and water
12
529 Give the structures and IUPAC names of
monohydric phenols of
molecular formula, ( C_{7} H_{8} O )
12
530 In Reimer Tiemann reaction
dichlorocarbene acts as:
A. nucleophile
B. electrophile
c. free radical
D. all of these
12
531 Write equations involved in the
preparation of phenol from cumene.
12
532 Arrange the following in order of decreasing acidic strength.pnitrophenol (I), p-cresol (II), m-cresol
(III), phenol (IV):
( A cdot|>||>|||>mid V )
B. IV>|||> || > |
C. ( |>|||>||>mid V )
D. ||( >|>1>1 v )
12
533 The compound (F) is:
( mathbf{A} )
B.
c. ( E t-equiv-E t )
D. Both (A) and (B)
12
534 Identify the correct set representing
properties of Methanol.
A. Colourless, volatile, poisonous, miscible
B. Colourless, volatile, non-poisonous, miscible
C . Colourless, volatile, poisonous, immiscible
D. Colourless, non-volatile, poisonous, miscible
12
535 Ethanol burns to produce carbon dioxide and water and can be used as:
A . gas
B. fuel
c. antioxidant
D. free radical
12
536 The IUPAC name of the compound
glycerine is:
A .1,2,3 -trihydroxy propane
B. 3-hydroxy pentane-1,5-diol
c. 1,2,3 -hydroxy propane
D. propane-1,2,3-triol
12
537 ( y=-1 )
( left.langlebigcircrangle-mathrm{cH}_{2} mathrm{Br}+mathrm{Ho}-bigcircrightrangle-mathrm{Br} )
( langlebigcircrangle-_{mathrm{o}_{mathrm{H}}}^{mathrm{cH}_{2}+mathrm{B}_{mathrm{r}}}langlebigcircrangle-mathrm{B}_{mathrm{r}} )
( left.langlebigcircrangle-mathrm{cH}_{2} prec bigcircrightrangle- ) ов
но ( left.langlebigcircrangle-text { сн }_{2} prec bigcircrightrangle ) в
12
538 Which of the following alcohols gives the best yield of dialkyl ether on being heated with a trace of sulphuric acid?
A. 2 – Pentanol
B. 2 -Methyl – 2 – butanol
c. 1- Pentanol
D. 2- Propanol
12
539 The distillation of rectified spirit gives absolute ethanol.
A . True
B. False
12
540 Assertion
Ethane is a gas while ethyl alcohol is a liquid.
Reason
Ethyl alcohol has greater molecular
mass than ethane.
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
541 IUPAC name is 3-phenylpropan-1-ol.
A. True
B. False
12
542 Which of the following ether is not cleaved by HI even at ( 525 mathrm{K} ) ?
A. ( C_{6} H_{5}-O-C H_{3} )
в. ( C_{6} H_{5}-O-C_{6} H_{5} )
c. ( C_{6} H_{5}-O-C_{3} H_{7} )
D.
12
543 Question 11. Name the enzymes and write the reactions involved in
the preparation of ethanol from sucrose by fermentation.
12
544 What is ( boldsymbol{A} ) ?
A ( cdot T s O-C H_{2}-C equiv C H )
в. ( T s O_{2}-C H_{2}-C equiv C H )
( c cdot T s O-C H_{2}-C-C H )
D. none of the above
12
545 ( frac{d}{d} ) 12
546 The correct order according to acidic
nature is:
A. ( C H_{3} O H<C H_{3} S H<C H_{3} N H_{2} )
в. ( C H_{3} N H_{2}<C H_{3} O H<C H_{3} S H )
( mathbf{c} cdot C H_{3} S H<C H_{3} O H<C H_{3} N H_{2} )
D. none of these
12
547 ( a )
( d )
( d a )
( cos )
12
548 What type of spectroscopy would be the best tool to analyze a clear and colorless solution for the presence of a functional group like an alcohol group ( (-O H) ? )
A. uv spectroscopy.
B. IR spectroscopy
c. Mass spectroscopy.
D. Photoelectron spectroscopy
12
549 Which of the following is NOT the process to obtain Phenol?
A. Cummene-Peroxidation Process
B. Raschig Process
c. Sulfonation Process
D. Solvays Process
12
550 Glucose or fructose is converted into
( C_{2} H_{5} O H ) in the presence of:
A . invertase
B. diastase
c. maltase
D. zymase
12
551 Which of the following catalyst is used in the conversion of water gas and
hydrogen into methyl alcohol?
( mathbf{A} cdot M n O )
B. Raney Ni
c. ( F e )
D. ( Z n O-C r_{2} O_{3} )
12
552 Complete the following reactions and
identify the products of above reactions
( (a) )
12
553 Compound (B) and (C) are:
( A )
(B)
B.
(B)
( c )
(B)
( (mathbf{C}) )
D.
(B)
( (mathbf{C}) )
12
554 ( boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H}_{2} frac{N a N O_{2}+boldsymbol{H} C l, mathbf{0}^{o} boldsymbol{C}}{longrightarrow} )
( boldsymbol{X} stackrel{boldsymbol{H}_{2} boldsymbol{O}, boldsymbol{w} boldsymbol{a} boldsymbol{r} boldsymbol{m}}{boldsymbol{Y}} boldsymbol{Y} )
In the above reaction, ( boldsymbol{Y} ) is:
( mathbf{A} cdot C_{6} H_{5} C l )
в. ( C_{6} H_{6} )
c. ( C_{6} H_{5} O H )
D. ( C_{6} H_{5} C H O )
12
555 The reaction that gives phenol as the
end product is/are:
This question has multiple correct options
( mathbf{A} )
( sqrt{ }+operatorname{conc.H}_{2} operatorname{so}_{4} frac{text { Heat }}{text { Fusion }}>frac{mathbf{H}^{+}}{mathbf{H}_{2} mathbf{O}} )
B. ( sqrt{int}^{mathrm{N} mathrm{O}_{2}} frac{mathrm{NaNO}_{2}}{mathrm{HCl}, 0^{circ} mathrm{C}} )
( c )
( y_{1}+mathbf{k o H} stackrel{300^{circ} mathbf{C}}{longrightarrow} stackrel{mathbf{H C l}}{longrightarrow} )
( mathbb{P}+mathrm{CH}_{3}-mathrm{CH}=mathrm{CH}_{2} stackrel{mathrm{H}^{+}}{longrightarrow} frac{mathrm{O}_{2}}{mathrm{KOH}}>frac{mathrm{H}^{+}}{ } )
12
556 Assertion
STATEMENT-1: An alcohol does not react
with ( C l^{-} ) ion in aqueous medium, but
reacts with concentrated ( H C I ) solution
to form alkyl chloride.
Reason
STATEMENT-2: The strong acid ( (boldsymbol{H} boldsymbol{C} boldsymbol{I}) ) accelerates the removal of proton from
( -O H ) group of alcohol
A. STATEMENT-1 is True, STATEMENT-2 is True STATEMENT-2 is a correct explanation for STATEMENT-
B. STATEMENT-1 is True, STATEMENT-2 is True; STATEMENT-2 is NOT a correct explanation for STATEMENT-1
C. STATEMENT-1 is True, STATEMENT-2 is False
D. STATEMENT-1 is False, STATEMENT-2 is True
12
557 Writer the mechanism of acid
dehydration of ethanol to yield ethene.
12
558 Which of the following reactions are correctly represented? This question has multiple correct options
( mathbf{A} )
[
mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}=mathrm{CH}_{2} frac{(mathrm{i}) mathrm{D}^{+}}{(mathrm{iij}) mathrm{H}_{2} mathrm{O}} mathrm{CH}_{3}-mathrm{CH}_{2}-underset{mathrm{OH}}{_{mathrm{I}}}-mathrm{CH}-mathrm{CH}_{2} mathrm{D}
]
B.
[
mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}=mathrm{CH}_{2} frac{(mathrm{i}) mathrm{H}^{+}}{(mathrm{ii}) mathrm{D}_{2} mathrm{O}} mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{CH}_{2} mathrm{O}
]
( c )
[
mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}=mathrm{CH}_{2} frac{(mathrm{i}) mathrm{H}^{+}}{(mathrm{ij}) mathrm{H}_{2} mathrm{O}} mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{CH}_{2} mathrm{O}
]
D.
[
mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}=mathrm{CH}_{2} frac{(mathrm{i}) mathrm{D}^{+}}{(mathrm{ii}) mathrm{D}_{2} mathrm{O}} mathrm{CH}_{3}-mathrm{CH}_{2}-underset{mathrm{OD}}{_{1}}-mathrm{CH}-mathrm{CH}_{2} mathrm{D}
]
12
559 Hydroboration-oxidation of ( boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C} boldsymbol{H}= )
( boldsymbol{C H}_{2} ) produces:
A. ( C H_{3} C H_{2} C H_{2} O H )
в. ( C H_{3} C H(O H) C H_{3} )
c. ( C H_{3} C H(O H) C H_{2} O H )
D. ( C H_{3} C O C H_{3} )
12
560 The IUPAC name of this compound is:
( boldsymbol{C H}_{3} quad boldsymbol{O} )
( boldsymbol{C H}_{3}-boldsymbol{C H}-stackrel{|}{boldsymbol{C}}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2} boldsymbol{O H} )
A. 1 -Hydroxy- 4 -methyl-3-pentanone
B. 2-Methyl-5-hydroxy-3-pentanone
c. 4-Methyl-3-oxo-1-pentanol
D. Hexan-1-one-3-o
12
561 Which one of the following compounds would
undergo nitration with the greatest ease?
A. benzene
B. phenol
c. nitrobenzene
D. benzoic acid
12
562 Which of the two tautomers is more
stable?
( A )
( B )
c. ( I=I I )
D. None of these
12
563 How will you obtain:
(i) Benzene from phenol
(ii) Ethylamine from Methyl Alcohol
(iii) Ethylene from ethyl alcohol
12
564 In the polar aprotic solvent, the increasing order of nucleophilicity is:
( boldsymbol{C F}_{3} boldsymbol{C H}_{2} boldsymbol{O}^{-}, boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{O}^{-}, boldsymbol{C F}_{3} boldsymbol{C H}_{2} )
A ( cdot C F_{3} C H_{2} O^{-}=C H_{3} C H_{2} O^{-}<C F_{3} C H_{2} S^{-}< )
( C H_{3} C H_{2} S^{-} )
B. ( C F_{3} C H_{2} O^{-}<C H_{3} C H_{2} O^{-}<C F_{3} C H_{2} S^{-}< )
( C H_{3} C H_{2} S^{-} )
c. ( C F_{3} C H_{2} O^{-}C F_{3} C H_{2} S^{-}C H_{3} C H_{2} O^{-}>C F_{3} C H_{2} S^{-}> )
( C H_{3} C H_{2} S^{-} )
12
565 Which of the following exhibit highest
boiling point?
( A )
B.
( c )
( D )
12
566 The formation of diethyl ether from ethanol is catalysed by:
A. ( H_{2} S O_{4} )
в. ( A l O_{3} )
c. ( C u )
D. ( N i )
12
567 m-CPBA
m-CPBA, A 1,0%
18
H20
30.
B (Major):
18
NaOH
HO
C (Major)
CH3
ou
(a) A is
Lo
(b) B is
LOH
CH;
CH3
(6) Bis Hot & Cie Cott
(c) B is
(d) Cisl
You
18
OH
OH
ОН
Jimin
12
568 Which reagent will lengthen the carbon chain by two carbon in one step on reaction with an
oragnolithium reagent?
A. Acetic acid
B. Formaldehyde
c. lodo methane
D. Ethylene oxide
12
569 On oxidation with acidified ( boldsymbol{K}_{mathbf{2}} boldsymbol{C r}_{mathbf{2}} boldsymbol{O}_{mathbf{7}}, ) an
compound gives a ketone which contains same number of carbon atoms
as in initial compound. The compound
is:
A. aldehyde
B . ( 1^{0} ) alcohol
C ( cdot 2^{0} ) alcohol
D. both ( 1^{0} ) and ( 2^{0} ) alcohols
12
570 Common name for methanol is:
A. volemitol
B. rubbing alcohol
c. wood spirit
D. xylitol
12
571 Correct order of acidic strength.
( (I) )
( (|) )
( mathbf{A} cdot I>I I>I I I )
B. ( I I>I I I>I )
( mathbf{c} cdot I>I I I>I I )
D. ( I I I>I I>I )
12
572 On oxymercuration-demercuration, the given compound produces the major product:
[
widehat{O} int^{C H_{2}-C H}=C H_{2}
]
( A )
( widehat{mathrm{O}} mathrm{CH}_{2}-mathrm{CH}-mathrm{CH}_{3} )
( mathrm{OH} )
в.
( widehat{O} int^{C H}_{2}-C H_{2}-C H_{2}-O H )
( c )
( begin{array}{c}widehat{mathrm{O}} mathrm{CH}_{2}-mathrm{CH}-mathrm{CH}_{2} \ mathrm{OH}end{array}_{mathrm{OH}}^{mathrm{T}} )
D.
( widehat{O} int^{C H_{2}-C O O H} )
12
573 Which statement is INCORRECT.
A. Phenol has smaller dipolemoment than methanol.
B. Haloarenes are insoluble in water but are soluble in
benzene.
C. Chloroform contains chlorine but gives no reaction with ( A g N O_{3} ) solution.
D. Ethanol has much lower pka value than phenol.
12
574 Arrange the following compounds in increasing order of boiling point
Propan ( -1- ) ol, butan -1 -ol, butan – 2 – ol
pentan -1 -ol
A. Propan-1- ol, butan-2 – ol, butan-1 – ol, pentan-1-ol
B. Propan-1- ol, butan-1 – ol, butan – 2 – -이, pentan-1 -ol
c. Pentan-1- ol, butan-2 – -ol, butan-1 – ol, propan-1-ol
D. Pentan – 1- ol, butan-1 – ol, butan – 2- ol, propan-1 -ol
12
575 Which of the following statement is
incorrrect:
A. Phenol gives positive bromine water test
B. Aniline gives foul smelling compound on reaction with ( C H C l_{3}+K O H )
C. Formic acid gives positive Tollen’s test
D. Nitrobenzene gives poitive Tollen’s test
12
576 On treatment with dilute ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} )
ethene forms ethanol
A. True
B. False
12
577 Which of the following is pyrogallol?
A.
в.
( c )
D.
12
578 Which of the following paths is/are
feasible for the preparation of ether ( (A) ? )
This question has multiple correct options
A. Path I
B. Path II
c. Path II
D. Path IV
12
579 The IUPAC name of the following
compound is:
A. 1-Phenylpropan-2-ol
B. 3-Phenylpropan-2-ol
c. 2-Hydroxypropylbenzene
D. None of these
12
580 Ethyl alcohol is manufactured from ethylene by:
A. permanganate
B. catalytic oxidation
C. absorption into Conc. ( H_{2} S O_{4} ) followed by hydrolysis
D. reduction
12
581 Ethyl alcohol on oxidation with acidified
( K_{2} C r_{2} O_{7} ) gives ethanal
A. True
B. False
12
582 Diethyl ether dissociates when it reacts
with:
A . ( N a O H )
в. ( H_{2} O )
c. ( H I )
D. ( K M n O_{4} )
12
583 Which of the following is not an example of symmetrical ether?
A. ( C H_{3}-O-C_{2} H_{5} )
в. ( C_{2} H_{5}-O-_{}^{C H}-C H_{2}-C H_{3} )
c.
[
C_{2} H_{5}-O-C_{1}^{prime}-C H_{3}
]
D. All of them
12
584 Product of the given reaction:
A. Salicylic acid
B. 2-Hydroxybenzoic acidd
( c . ) Both A and B
D. None of these
12
585 Q Type your question
( mathbf{A} )
( B )
( mathbf{C} )
( D )
12
586 Mixed ethers are:
A. symmetrical ethers
B. unsymmetrical ethers
C . alkyl aryl ethers
D. diaryl ethers
12
587 Dioxane used as a solvent is obtained
by distilling with
( mathbf{A} cdot ) glycerol, conc. ( H_{2} S O_{4} )
B. glycerol, conc. ( H_{3} P O_{4} )
C . glycol, conc. ( H_{2} S O_{4} )
D. glycol, conc. ( H_{3} P O_{4} )
12
588 Which one of the following on oxidation gives a ketone?
A. Primary alcohol
B. Secondary alcohol
c. Tertiary alcohol
D. All of these
12
589 Can you explain why is bimolecular dehydran not appropriate for the preparation of ethyl methyl ether? 12
590 The order of reactivity of the following
alcohols towards conc. H ( C l ) is:
( mathbf{A} cdot I>I I>I I I>I V )
В . ( I>I I I>I I>I V )
( mathbf{C} cdot I V>I I I>I I>I )
D. ( I V>I I I>I>I I )
12
591 What are ethers? How are they
classified?
12
592 Complete the blanks by identifying ( boldsymbol{X} )
and ( Y )
A. Ethanal. ethen
3. Ethanol, ethene
c. Ethanal, ethyne
D. Ethanol, ethyne
12
593 Crown ethers are:
A. cyclic ethers
B. mixed ethers
C. ethers with other several functional groups
D. not ethers
12
594 Example of an aromatic ether islare:
( A )
Anisole
B.
( c )
D. All of these
12
595 How is methoxyethane prepared from:
(a) Methyl iodide
(b) Diazomethane
12
596 The incorrect statement about the
above reaction is:

Product
A. the name of reaction is Reimer Tiemann’s reaction
B. the intermediate in the reaction is dichloro carbene
c. the final product is o-hydroxy benzaldehyde
D. the final product is benzyl chloride

12
597 How is benzyl alcohol obtained from
phenyl magnesium bromide?
12
598 Which of the following alcohol has highest solubility in water?
A. Tertiary butyl alcohol
B. Secondary butyl alcohol
c. Ethylene glycol
D. Glycerol
12
599 Question 33. When 3-methylbutan-2-ol is treated with HBr, the
following reaction takes place
Br
CH3-CH=CH-CH, HBr, CH, C–CH2–CH,
CH, OH
CH,
Give a mechanism for this reaction.
The secondary carbocation formed in the process rearranges to a more
stable tertiary carbocation by a hydride ion shift from 3rd carbon atom.
– Br
12
600 Grain alcohol is the common name of:
A. propyl alcohol
B. methyl alcohol
c. ethyl alcohol
D. isopropyl alcohol
12
601 Which of the following reactions will not
yield phenol?
( A )
B.
( c )
D.
12
602 140.
(і) 0.2% Oso,
» P, P can be
(ii) t-BuOH
or
KMnO, dil.
(a)
OH
ОН
(b) | LOH
ОН
d) но
(c)
ОН
12
603 Give reasons:
o-nitrophenol is more volatile than ( mathrm{p} ) nitrophenol
12
604 The most acidic compound among the following is:
A. phenol
B. ethanol
c. 3,5-dinitrophenol
D. 4-methoxy phenol
12
605 A compound ( X ) was treated with ( Z n )
dust with simultaneous heating.This resulted in the formation of an aromatic
compound ( (X) ) and a white powder ( (A) . A ) was found to be insoluble in
water.ldentify correct combination of ( boldsymbol{X} )
and ( A ) respectively.
A. Toluene and ( C a O )
B. Chlorobenzene and ( Z n O )
c. Phenol and ( C a O )
D. Phenol and ( Z n O )
12
606 Methyl amine with nitrous acid gives
A. methyl alcohol
B. methyl nitrite
c. dimethyl ether
D. methyl nitrite and dimethyl ether
12
607 Least boiling point is of:
A. ethylene glycol
B. ether
c. water
D. phenol
12
608 Among ethanol, dimethyl ether, methanol and propanal, the isomers are
A. ethanol, dimethyl ether, methanol and propanal
B. ethanol and methanol
c. ethanol, dimethyl ether, and methanol
D. ethanol and dimethyl ether
12
609 Write equations of the following
reactions:
(i) Friedel-Crafts reaction alkylation of
anisole.
(ii) Nitration of anisole.
(iii) Bromination of anisole in ethanoic
acid medium.
(iv) Friedel-Crafts acetylation of anisole.
12
610 Allyl phenyl ether can be prepared by
heating:
A ( cdot C H_{2}=C H-C H_{2}-B r+C_{6} H_{5} O N a )
В. ( C_{6} H_{5}-C H=C H-B r+C H_{3}-O N a )
c. ( C_{6} H_{5} B r+C H_{2}=C H-C H_{2}-O N a )
D. ( C H_{2}=C H-B r+C_{6} H_{5}-C H_{2}-O N a )
12
611 Give balanced equations for the
following named reactions:
(i) Reimer-Tiemann reaction
(ii) Rosenmund reaction
(iii) Hoffmann’s degradation reaction
12
612 Spirit of wine contains:
( mathbf{A} cdot C H_{3} O H )
в. ( C_{2} H_{5} O H )
с. НСН О
D. ( C H_{3} ) СОСН( _{3} )
12
613 Consider the reaction ( boldsymbol{C}_{3} boldsymbol{H}_{mathbf{7}}-boldsymbol{O} boldsymbol{H}+ )
( boldsymbol{E} boldsymbol{t}_{3} boldsymbol{O}^{oplus} boldsymbol{B} boldsymbol{F}_{4}^{ominus} rightarrow boldsymbol{C}_{3} boldsymbol{H}_{7}-boldsymbol{O}-boldsymbol{E} boldsymbol{t}+ )
EtO ( boldsymbol{E t}+boldsymbol{H} boldsymbol{B} boldsymbol{F}_{mathbf{4}} )
Which of the following statements is wrong?
A. The nucleophile in the reaction is ( C_{3} H_{7} O H )
B. The nucleophile in the reaction is ( B F_{4}^{ominus} )
C. The leaving group is ( E t_{2} O )
D. ( S N^{2} ) reaction occurs.
12
614 Among the following which is least acidic?
A. Phenol
B . o-cresol
c. p-nitrophenol
D. p-chlorophenol
12
615 ( frac{phi}{phi} ) 12
616 Give the IUPAC name for the following alcohols. Classify as primary or secondary or teritiary alcohol ( boldsymbol{C H}_{2}=boldsymbol{C H}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{O H} ) 12
617 ( C H_{3} )
( C H_{3}-C_{I}^{prime}-C H_{2}-C H_{3} )
The correct IUPAC name of the above
compound is:
A. tert-amyl alcohol
B. 2-methylbutan-2-ol
c. 2-methylpentan-2-ol
D. 1,1 dimethyl propan-1-o
12
618 Assertion
Ethanol is a weaker acid than phenol
Reason

Sodium ethoxide may be prepared by the reaction of ethanol with aqueous
NaOH
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
619 Identify the correct sequence of given steps for the conversion of calcium
carbide to methyl alcohol.
(a) Reaction with aqueous ( K O H )
(b) Hydrolysis
(c) Reaction with soda lime
(d) Reaction with ( H a S O_{4} / H_{2} S O_{4} )
(e) Reaction with ( boldsymbol{H} boldsymbol{g} boldsymbol{S} boldsymbol{O}_{4} )
(f) Reaction with ( P C l_{5} )
A. ( b d e c f a )
B. ( b d c ) a ( f e )
c. ( b ) f ( d ) e a ( c )
D. ( d b c e f a )
12
620 (1) 1,2 -dihydroxybenzene ( (|) 1,3- ) dihydroxybenzene (III) ( 1,4^{-} ) dihydroxybenzene (IV) Hydroxybenzene The increasing order of boiling points of above-mentioned alcohols is:
A. ( I<I I<I I I<I V )
в. ( I<I I<I V<I I I )
c. ( I V<I<I I<I I I )
D. ( I V<I I<I<I I I )
12
621 8
8
8
8
12
622 Question 26. How is 1-propoxypropane synthesised from propan-1-ols
Write mechanism of this reaction.
(1) Williamson’s synthesis or
(ii) Dehydration of propan-1-ol.
boom
12
623 The correct decreasing order of dehydration of following alcohols with
conc. ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} ) is:
( mathbf{B} )
( mathbf{D} )
( A cdot C>A>B>D )
B. ( D>A>C>B )
( mathrm{c} cdot mathrm{A}>mathrm{B}>mathrm{C}>mathrm{D} )
( D cdot D>C>A>B )
12
624 8
8
8
12
625 (a) How will you obtain following from phenol?
(i) 2,4,6 Tribromophenol
(ii) Picric-Acid
(b) What is the reaction of Diethyl ether
with ( boldsymbol{H} boldsymbol{I} ) -Acid?
12
626 Arrange according boiling point:
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}_{3}, boldsymbol{C H}_{3} boldsymbol{C H O}, boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C} )
12
627 When 3 -methylbutan-2-ol is treated with HBr, the following reaction takes place:
Give a mechanism for this reaction.
(Hint : The secondary carbocation formed in step II rearranges to a more stable tertiary carbocation by a
hydride ion shift from 3rd carbon atom.
12
628 An industrial method for the
preparation of methanol is:
A. by catalytic reduction of carbon monoxide
B. by reacting methane with steam in presence of a catalyst
C . by reduction of ( H C H O ) with ( L i A l H_{4} )
D. by reduction of ( H C H O ) with aqueous ( N a O H )
12
629 How the following conversions can be carried out?
Propene to propan-1-ol
12
630 Which of the following alcohol is used for
making acetaldehyde?
A. Ethanol
B. Methanol
c. Propanol
D. None of the above
12
631 Which of the following is the ( A ) in the
given reaction
A. Benzene diazonium chloride
B. Benzene
c. Nitro benzen
D. Amino benzene
12
632 Ethyl alcohol exhibits acidic character on reacting with:
A . Acetic acid
B. Sodium metal
c. Hydrogen iodide
D. Acidic potassium dichromate
12
633 Which of the following reactions is possible?
( A )
[
mathrm{CH}_{3} mathrm{CH}_{2} mathrm{ONa}+mathrm{PhBr} rightarrow mathrm{CH}_{3} mathrm{CH}_{2} mathrm{O}-mathrm{Ph}
]
в.
[
^{left(mathrm{CH}_{3}right)_{3} mathrm{C}-mathrm{ONa}+mathrm{CH}_{3} mathrm{CH}_{2} mathrm{Br} rightarrow}_{left(mathrm{CH}_{3}right)_{3}} overrightarrow{mathrm{C}-mathrm{O}-mathrm{CH}_{2}-mathrm{CH}_{3}}
]
c.
[
begin{aligned}
mathrm{CH}_{3} mathrm{CH}=mathrm{CH}-mathrm{ONa}+mathrm{CH}_{3} mathrm{CH}=mathrm{CH}-mathrm{Br} rightarrow \
mathrm{CH}_{3} mathrm{CH}=mathrm{CH}-mathrm{O}-mathrm{CH}=mathrm{CH}-mathrm{CH}_{3}
end{aligned}
]
D.
[
begin{array}{l}
left(mathrm{CH}_{3}right)_{3} mathrm{C}-mathrm{CH}_{2}-mathrm{ONa}+left(mathrm{CH}_{3}right)_{3} mathrm{C}-mathrm{CH}_{2} mathrm{Br} \
quad rightarrowleft(mathrm{CH}_{3}right)_{3} mathrm{C}-mathrm{CH}_{2}-mathrm{O}-mathrm{CH}_{2}-mathrm{C}left(mathrm{CH}_{3}right)_{3}
end{array}
]
12
634 Which reagent can convert acetic acid into ethanol?
( mathbf{A} cdot S n+H C l )
B. ( quad H_{2}+P t )
c. ( quad ) Li ( A l H_{4} )
D. ( N a+ )alcohol( l )
12
635 In the reaction the major product formed is:
( A )
B.
( c )
D.
12
636 What are the products when ethyl isopropyl ether is cleaved with
concentrated ( H I ? )
A. Ethanol and 2-iodo-2-methylpropane
B. Ethanol and 2-methylpropane
c. lodoethane and isopropyl alcohol
D. lodoethane and 2-methylpropane
12
637 2
2
8
8
12
638 How do you condemn the use of alcohol
as a social practice.
12
639 Which of the following products are formed when ethyl alcohol is heated
with ( boldsymbol{H}_{2} boldsymbol{S O}_{4} ? )
This question has multiple correct options
A. Ethene
B. Diethyl ether
c. Dimethyl ether
D. Ethane
12
640 Question 15. Explain why low molecular mass alcohols are soluble in
water?
12
641 42. Wood spirit is
(1) Methyl alcohol
(2) Ethyl alcohol
(3) Butyl alcohol
(4) Propyl alcohol
12
642 Phenol is acidic because of the
resonance stabilization of its conjugate base, namely:
A. phenoxide ion
B. epoxide ion
c. benzoate ion
D. none of these
12
643 (a) What happens when Phenol is treated with benzene diazonium
chloride? Give balance chemical
equation.
12
644 Q Type your question
( (mathbf{A}) )
( A )
and
( B )
and
( c )
( D )
12
645 Which of the following reacts fastest
with conc. ( boldsymbol{H} boldsymbol{C l} ) ?
A. ( left(C H_{3}right)_{3} C O H )
в. ( C H_{2}=C H-C H_{2} O H )
( c )
D.
12
646 Question 3. Write the IUPAC name of the compound given below
CH3-CH2-C=c-OH
111
CH3 CH2OH
12
647 ( boldsymbol{C}left(boldsymbol{C H}_{3}right)_{2}=boldsymbol{C}left(boldsymbol{C H}_{3}right)_{2} frac{C l_{2}}{boldsymbol{H}_{2} boldsymbol{O}} boldsymbol{A} stackrel{boldsymbol{O H}^{-}}{boldsymbol{beta}} boldsymbol{B} )
The compound ( B ) is:
( A )
в. ( left(C H_{3}right)_{2} C-Cleft(C H_{3}right) )
он ( C l )
( mathrm{c} cdotleft(C H_{3}right)_{2} C-Cleft(C H_{3}right)_{2} )
( _{O H O H} )
D. none of the above
12
648 ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-underset{boldsymbol{C H}_{3}}{boldsymbol{C}}^{boldsymbol{C H}_{3}}- )
( C H_{2}-C H_{2}-O H frac{H^{+}}{Delta}(A) )
Product (A) is:
A. ( C H_{3}-C H_{2}-C H_{2}-C H_{2}-C_{C H_{3}}=C H-C H_{3} )
в. ( C H_{3}-left(C H_{2}right)_{3}-Cleft(C H_{3}right)=Cleft(C H_{3}right)_{2} )
c. ( C H_{3}-C H_{2}-C H_{2}-C H_{2}-C_{I H_{3}}=C H_{2} )
12
649 Q Type your question
( mathbf{A} )
( B )
( mathbf{C} )
( D )
12
650 t-butyl methyl ether on reaction with
anhydrous ( H I ) gives an alcohol ( (A) ) and
halide (B). Which of the following
statement is correct?

This question has multiple correct options
A. Alcohol (A) performs Lucas test immediately at room temperature
B. Halide
(B) undergoes ( S_{N} 1 ) reaction most readily
C. Alcohol (A) on heating with copper gives formaldehyde
D. Halide
(B) on reaction with ( K C N ) undergoes ( S_{N} 2 ) reaction

12
651 ( C_{2} H_{5} O H rightarrow C_{2} H_{5} B r . ) In this
conversion, the reagent is:
A. ( H B r )
B. ( B r_{2}+C C l_{4} )
c. ( B r_{2} ) water
D. ( K B r )
12
652 Write the chemical reactions of
( C_{2} H_{5} O H ) with ( P C l_{3} ) and ( P C l_{5} )
separately
12
653 ( b )
( d )
( d )
( y )
12
654 Write the equations involved in the following reactions:
(i) Reimer – Tietmann reaction
(ii) Williamson synthesis
12
655 What is true regarding the following
acid catalyzed esterification (Fischer)
reaction ?
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C O O H}+boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{O H} stackrel{boldsymbol{H}^{+}}{longrightarrow} )
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C O O C}_{2} boldsymbol{H}_{5} )
This question has multiple correct options
A. The reaction involves production on ( s p^{3} ) -oxygen of acid in the first step
B. The reaction involves protonation on ( s p^{2} ) -oxygen of acid followed by formation of acylium ion ( left(R O C^{+}right) ) in the first step
C. The slowest step of reaction is the nucleophilic attack of alcohol on ( s p^{2} ) carbon of acid
D. Alcohol undergoes protonation in the first step
12
656 In iodine charge transfer test the color of ether compound formed is:
A. blue
B. pale yello
c. brown
D. dark red
12
657 derivative of phenol?
( A )
( B )
( c )
( D )
12
658 Solubility of alcohols in water is
to that of hydrocarbons of comparable molecular masses.
A. greater than
B. similar
c. lesser than
D. none of these
12
659 Identify the final product of the reaction
[
mathrm{CH}_{3} mathrm{MgBr}+mathrm{CH}_{2} mathrm{CH}_{2} rightarrow stackrel{mathrm{H}, mathrm{O}^{+}}{longrightarrow} ?
]
( mathbf{A} cdot C H_{3} O H )
в. ( C H_{3} C H_{2} O H )
( c )
[
triangle
]
D. ( C H_{3} C H_{2} C H_{2} O H )
12
660 Which of the following is(are) true
statement(s)?
Consider the following reaction
[
mathrm{CH}_{2}=stackrel{mathrm{CH}_{3}}{mathrm{C}-mathrm{CH}_{2}} stackrel{mathrm{CH}_{3}}{mathrm{CH}-mathrm{CH}_{2} mathrm{OH}} frac{mathrm{H}_{2} mathrm{SO}_{4}}{longrightarrow} underbrace{mathrm{CH}_{3}}_{mathrm{CH}_{3}}
]
This question has multiple correct options
A. Reaction is initiated by protonation of ( -O H ) followed by formation of carbocation intermediate
B. Reaction is initiated at ( C=C ) bond forming a tertiary carbocation
C. Here intramolecular reaction is favoured by entropy of reaction
D. The same reaction can also be done using ( N a O H ) catalyst
12
661 Statement ( I: H_{2} S O_{4} ) is not used during
the reaction of alcohols with ( K I )
Statement II : ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} ) oxidises ( boldsymbol{K} boldsymbol{I} ) to ( boldsymbol{I}_{2} )
and will prevent reaction of alcohol with
( boldsymbol{K} boldsymbol{I} )
A. Statement I & Statement II are correct and statement I is correct explanation of statement
B. Statement I & Statement II are correct and statement
Il is not correct explanation of statement
c. Statement lis correct and Statement II is wrong
D. Statement I is wrong and Statement II is correct
12
662 Explain why phenol in water or polarprotic give ( boldsymbol{O}-boldsymbol{P} ) tribromo
product but in nonpolar medium like
( C S_{2} C C l_{2} ) image ortho or ( p ) bromo product?
12
663 The correct combination of names for
isomeric alcohols with molecular
formula ( C_{4} H_{10} O ) is/are:

This question has multiple correct options
A. tert-butanol and 2-methylpropan-2-ol
B. tert-butanol and 1, 1-dimethylethan-1-ol
c. n-butanol and butan-1-ol
D. isobutyl alcohol and 2-methylpropan-1-ol

12
664 Which of the following substance can be used as a raw material for obtaining
alcohol?
A. Potatoes
B. Molasses
c. Maize
D. All of the above
12
665 Write IUPAC name of the given
compound:
[
mathbf{C H}_{3}-underset{mathbf{C} mathbf{H}_{3}}{mathbf{I}} mathbf{U}-mathbf{C}_{mathbf{O H}}-frac{mathbf{C} mathbf{H}_{3}}{mathbf{C} mathbf{H}_{3}}-mathbf{C H}_{3}
]
12
666 ( begin{array}{cc}boldsymbol{C H}_{mathbf{3}}-underset{mathbf{O}}{mathbf{C}} boldsymbol{H}- & boldsymbol{C} boldsymbol{H}-boldsymbol{C} boldsymbol{H}_{3} \ & boldsymbol{O} boldsymbol{H}end{array} )
IUPAC name of the given compound is :
A. Butane-2,3-diol
B. 1-Methy|-propane-1,2-diol
c. Both (A) and (B)
D. None of these
12
667 The correct IUPAC name of the above
given compound is:
A. 2-epoxy-1-chloropropane
B. 1,2-epoxy-1-chloropropane
c. epoxy-1-chloropropane
D. 3-Chloro-1,2-epoxypropane
12
668 In the reaction
[
left(boldsymbol{C H}_{3}right)_{3} boldsymbol{C}-boldsymbol{O}-boldsymbol{C H}_{2} boldsymbol{C H}_{3}+
]
[
begin{array}{c}
boldsymbol{H I} \
(mathbf{1 m o l e})
end{array}
]
the product(s) formed is(are):
( A )
[
left(C H_{3}right)_{3} C-O H text { and } C H_{3} C H_{2} I
]
в.
[
left(C H_{3}right)_{3} C-I text { and } C H_{3} C H_{2} O H
]
c. ( left(C H_{3}right)_{3} C-I ) and ( C H_{3} C H_{2} I )
D.
[
begin{array}{ccc}
C- & O^{+} & -C H_{2} C H_{3} I
end{array}
]
[
left(C H_{3}right)_{3}
]
12
669 The formation of oxanium salt of
ether is due to:
A. protonation of 0 atom in ether
B. donation of an e pair by 0 atom in ether
c. the attachment of a proton to 0 atom in ether by coordination
D. all the above
12
670 topp
( Q ) Type your question
( A )
B.
( c )
( D )
12
671 The product obtained by heating diethyl ether with ( boldsymbol{H} boldsymbol{I} ) is:
A. ( C_{2} H_{5} I )
В ( cdot C_{2} H_{5} O H )
( mathbf{c} cdot C_{2} H_{5} O H+C_{2} H_{5} )
D. ( C_{2} H_{5}-C_{2} H_{5} )
12
672 ( delta_{j} ) 12
673 Grain alcohol, a product of yeast fermentaion of sugars in grains and fruits, is:
A. Ethanol
B. 1-Butanol
c. 2-Methyl-1-propanol
D. Methanol
12
674 what is the product on the IOIIOwIng
reaction?
( A )
( B )
( c )
( D )
12
675 Which is used in alcoholic beverages?
A. Methanol
B. Ethanol
c. Phenol
D. Glycerol
12
676 Which of the following statements
is/are correct?
This question has multiple correct options
A. The common name of benzene- 1,2 -diol is catechol
B. The common name of benzene- 1,3 -diol is resorcinol.
C. The common name of benzene- 1,4 -diol is quinol,
D. The common name of benzene- 1,4 -diol is hydroquinone
12
677 What is the molecular formula of
pyrogallol?
( mathbf{A} cdot C_{6} H_{4}(O H) )
в. ( C_{6} H_{5}(O H)_{3} )
c. ( C_{6} H_{3}(O H)_{3} )
D. ( C_{6} H_{5} O H )
12
678 ( a c )
Chlorobenzene
Reaction ( rightarrow ) Salicylaldehyde. ( X ) and ( Y )
reactions are respectively:
A. Fries rearrangement and Kolbe-Schmidt
B. Cumene and Reimer-Tiemann
c. Dow and Reimer-Tiemann
D. Dow and Friedal-Craft
12
679 5
3
3
8
8
12
680 Which yields isopropyl methyl ether as the major product with little or no by products?
A ( cdotleft(C H_{3}right)_{2} C H O^{-} N a^{+}+C H_{3} I longrightarrow )
в. ( C H_{3} O N a+left(C H_{3}right)_{2} C H I )
c. ( left(C H_{3}right)_{2} C H O H+C H_{3} O H stackrel{H_{2} S O_{4}}{longrightarrow} )
D. All three gives isopropyl methyl ether as the major product
12
681 Question 9. What happens when benzene diazonium chloride is heated
with water?
12
682 ( C_{n} H_{2 n+1}(O H)_{3} ) is a general formula for trihydric alcohols.
A. True
B. False
12
683 Question 2. Write the IUPAC name of the following compounds.
NO₂
13
( &Hz-ah-ah-ah-ah-ah,
13 W
i
OCH;
CH, OH CH OH
12
684 Give the IUPAC name of ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}- )
( boldsymbol{C H}(boldsymbol{O H})-boldsymbol{C H}_{3} )
12
685 The reaction, ( boldsymbol{R} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C O O H} frac{boldsymbol{R} e d boldsymbol{P}}{boldsymbol{B r}_{2}} )
( boldsymbol{R}-boldsymbol{C} boldsymbol{H}_{2}-underset{boldsymbol{B} boldsymbol{r}}{boldsymbol{C}} boldsymbol{H}-boldsymbol{C O O H} ) is called:
A. Reimer-Tiemann reaction
B. Hell-volhard-zelinsky reaction
c. Cannizzaro reaction
D. Sandmeyer reaction
12
686 Which of the following phenols has lowest solubility in water?
A. Phenol
B. o-Nitrophenol
C. m-Nitrophenol
D. p-Nitrophenol
12
687 Among the following four compounds
(i) Phenol
(ii) Methyl phenol
(iii) Meta-nitrophenol
(iv) Para-nitrophenol The acidity order is:
A ( cdot(i v)>(i i i)>(i)>(i i) )
в. ( (i i i)>(i v)>(i)>(i i) )
c. ( (i)>(i v)>(i i i)>(i i) )
D. ( (i i)>(i)>(i i i)>(i v) )
12
688 The intermediate form in the
preparation of phenol by sodium benzene sulphonate is:
A. sodium propoxide
B. sodium phenoxide
c. sodium ethoxide
D. None of these
12
689 Write the mechanism of hydration of ethene to yield ethanol 12
690 Complete the following reaction Propene ( frac{boldsymbol{H}_{2} boldsymbol{S O}_{4}}{boldsymbol{H}_{2} boldsymbol{O}, boldsymbol{Delta}} boldsymbol{A} ) 12
691 Constituent of gasohol is:
( mathbf{A} cdot 90 % ) petrol ( +10 % ) alcohol
B. 80% petrol + 20% ethanol
C . ( 60 % ) petrol ( +40 % ) ethanol
D. 50% petrol + 50% ethanol
12
692 is prepared on a large seals from water gas.
A. Methanol
B. Ethanal
c. Methane
D. Ethanol
12
693 The number of monochloro derivaties of
2-methoxy propane are possible are:
A .2
B.
( c cdot 3 )
( D )
12
694 –CH
ОН
CH=CH
12
695 Which of the following has a higher boiling point?
A. Butanol
B. Butanal
c. Both of them have similar boiling point
D. Cannot say anything
12
696 Question 5. What is denatured alcohol? 12
697 For phenol, which of the following
statements is correct?
A. It is insoluble in water
B. It has higher boiling point than toluene
C. It does not shows acidic property
D. It has lower melting point compared to aromatic hydrocarbons of comparable molecular weight
12
698 90. What is the major dehydration product in the following
reaction?
OH
H2PO4
Heat
12
699 Phenol with ( C C l_{4} ) and ( K O H ) gives salicylic acid. The reaction is known as:
A. Friedel-Craft reaction
B. Reimer – Tiemann reaction
c. Rosenmund’s reaction
D. siemlet reaction
12
700 Write the name and formula of the
second member of the carbon
compounds having functional group-
ОН.
12
701 Salicylic acid is produced when phenol in alcoholic KOH is treated with
A. ( C H_{3} C l )
в. ( C H C l_{3} )
( mathbf{c} cdot C H_{2} C l_{2} )
D. ( C C l_{4} )
12
702 Ethylbenzene with bromine in presence
of ( F e B r_{3} ) predominantly gives
( A )
B.
( c )
( D )
12
703 Alcohols containing only up to
carbon atoms
are completely miscible with water
A . 10
B. 3
( c cdot 8 )
D. 14
12
704 When phenol is treated with bromine
water, the product formed is :
A. ( o ) -Bromo phenol
B. ( p ) – Bromo phenol
c. ( m ) -Bromo phenol
D. 2,4,6 -Tribromo phenol
12
705 Anisole on reaction with chloromethane
in presence of anhydrous ( A l C l_{3} ) gives
A. o-methyl anisole and p-methoxy anisole
B. p-methyl anisole and p-methoxy anisole
c. o-methyl anisole and p-methyl anisole
D. o-methoxy acetphenone and p-methoxy acetophenone
12
706 How would you synthesize an alcohol from appropriate alkenes? 12
707 Question 6. What is meant by hydroboration-oxidation reaction?
Illustrate it with an example.
Addition of diborane to alkenes followed by oxidation.
12
708 Arrange the following in order of decreasing acidic strength. nitrophenol
(1), p-cresol (II), m-cresol phenol (IV) :
A ( . I>I V>I I>I I I )
( I )
B. ( I V>I I I>I I>I )
c. ( I>I I>I I I>I V )
( . I I I>I I>I>I V )
( V )
12
709 The distillation of phenol with zinc dust gives:
( mathbf{A} cdot C_{6} H_{6} )
в. ( C_{6} H_{5}-C_{6} H_{5} )
c. ( C_{6} H_{1} )
D. ( C_{6} H_{5}-O-C_{6} H_{5} )
12
710 How will you convert:
(i) Propene to Propan-2-ol?
(ii) Phenol to 2,4,6-trinitrophenol?
12
711 Write the balanced equation for the
following:Bromoethane and an aqueous solution
of sodium hydroxide.
A. ( C_{2} H_{5} B r+N a O H rightarrow C_{2} H_{6} )
в. ( C_{2} H_{5} B r+N a O H rightarrow C_{2} H_{5} O H )
c. ( C_{2} H_{5} B r+N a O H rightarrow C_{2} H_{4} O )
D. ( C_{2} H_{5} B r+N a O H rightarrow C_{2} H_{2} O )
12
712 Which one of the following is oxidised
by ( mathrm{MnO}_{2} ? )
A ( cdot mathrm{C}_{6} mathrm{H}_{5}-mathrm{CH}_{2}-mathrm{OH} )
B. ( mathrm{CH}_{2}=mathrm{CH}-mathrm{CH}_{2}-mathrm{CH}-mathrm{CH}_{3} )
c. ( mathrm{CH}_{3}-mathrm{CH}=mathrm{CH}-mathrm{CH}-mathrm{CH}_{3} )
D. ( mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{OH} )
12
713 Which one of the following is a tertiary alcohol?
A. ( C H_{3} C H_{2} C H_{2} O H )
в. ( C H_{3} C H(O H) C H_{3} )
c. ( left(C H_{3}right)_{2} ) СНСН( _{2} ) ОН
D. ( left(C H_{3}right)_{3} C O H )
12
714 Which of the following is used as freezing mixture?
A. Mixture of ether and liquid ( C O_{2} )
B. Mixture of ether and ethyl alcohol
C. Mixture of ether and dry ice
D. Mixture of ethyl alcohol and dry ice
12
715 Assertion
o-Nitrophenol is more acidic than meta m-Nitrophenol
Reason
o-Nitrophenol has more I effect than ( m- )
Nitrophenol
Read the above assertion and reason
and choose the correct statement
regarding 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
716 Question 29. Explain the fact that in aryl alkyl ethers
(i) the alkoxy group activates the benzene ring towards electrophilic
substitution.
(ii) it directs the incoming substituents to ortho and para positions in
benzene ring.
12
717 Among the compounds ( I-I V ), the
compound having the lowest boiling
point is:
( A cdot I )
B. II
c. ( I I I )
D. ( I V )
12
718 How is phenol prepared from Benzene Sulphonic acid? 12
719 Match the column. 12
720 The product formed when ethene gas
reacts with water in the presence of sulphuric acid is :
A. ethanol
B. ethanal
c. ethanoic acid
D. ethanoate
12
721 Match the compounds in column I with
their
characteristics/test(s)/reagents(s)/ste reochemistry given in column II Matching can be one or more than one.
12
722 Why is sulphuric acid not used during the reaction of alcohols with KI? 12
723 Tert-butyl methyl ether on treatment
with hydrogen iodide in cold gives:
A. tert-butyl iodide and methyl iodide
B. tert-butyl alcohol and methyl alcohol
C. tert-butyl alcohol and methyl iodide
D. tert-butyl iodide and methyl alcohol
12
724 Compound ( (A) C_{5} H_{10} O ) forms a
phenylhydrazone and gives negative Tollen’s and iodoform test. Compound
(A) on reduction gives n-pentase. Compound ( (boldsymbol{A}) ) is:
A . a primary alcohol
B. an aldehyde
c. a ketone
D. a secondary alcohol
12
725 143. Addition of OsO, to cyclopentene would give a product
which is
(a) achiral
(b) racemic
(c) meso
(d) optically active
12
726 Cumene on reaction with oxygen
followed by hydrolysis gives?
( mathbf{A} cdot C H_{3} O H ) and ( C_{6} H_{5} C O C H_{3} )
B. ( C_{6} H_{5} O H ) and ( left(C H_{3}right)_{2} O )
( mathbf{c} cdot C_{6} H_{5} O C H_{3} ) and ( C H_{3} O H )
D. ( C_{6} H_{5} O H ) and ( C H_{3} C O C H_{3} )
12
727 ( begin{array}{cc}C_{4} H_{6} O_{4} stackrel{Delta}{longrightarrow} C_{3} H_{6} O_{2} frac{text {sodalime}}{Delta} & C \ A & Bend{array} )
Compound ‘ ( C^{prime} ) is a hydrocarbon,
occupying approx ( 0.75 L ) volume per
gram. Identify ( ^{prime} A^{prime} ) and ( ^{prime} B^{prime} )
A. tartaric acid, propanoic acid
B. Succinic acid, succinic anhydride
C . Maleic anhydride, maleic acid
D. Methyl malonic acid, propanoic acid
12
728 Explain the following behaviours.
(i) Alcohols are more soluble in water
than the hydrocarbons of comparable molecular masses.
(ii) Ortho-nitrophenol is more acidic
than ortho-methoxyphenol
12
729 + NaBI
Question 25. Illustrate the examples the limitations of Williamson’s
synthesis for the preparation of certain types of ethers.
Tertiary alkyl halides readily give elimination product with strong bases
like alkoxide ions. The C-X bond of alkyl halid
12
730 An organic compound of molecular
formula ( C_{4} H_{10} O ) does not react with
sodium. With excess of HI, it gives only one type of alkyl iodide. The compound is :
A. unsymmetrical ether
B. symmetrical ether
c. alcohol
D. none of these
12
731 Which of the following compounds is stable?
( mathbf{A} cdot C H_{3} C H(O H)_{2} )
B. ( left(C H_{3}right)_{2} C H(O H)_{2} )
( mathbf{c} cdot C C l_{3} C H(O H)_{2} )
D. None of these
12
732 Which of the following is the correct increasing order of boiling point of the following compounds?
I) ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{O H} )
II) ( boldsymbol{C} boldsymbol{H}_{3}-boldsymbol{C} boldsymbol{H}-boldsymbol{C} boldsymbol{H}_{3} )
( boldsymbol{O} boldsymbol{H} )
III) ( boldsymbol{C H}_{3}-boldsymbol{O}-boldsymbol{C H}_{2}-boldsymbol{C H}_{3} )
( mathbf{A} cdot l l<l<l l l )
в. ( | l<l l<l )
c. ( l<l l<l l l )
D. ( l l<l l l<l )
12
733 ( C-O-C ) bond in ethers can be
cleaved by:

This question has multiple correct options
A ( . H_{2} S O_{4} )
B. ( L i A I H_{4} )
c. ( K O H )
D. ( H I )

12
734 toppr
Q Type your question
4
( B )
( c )
( D )
12
735 An organic compound ( (B) ) is formed by the reaction of ethylmagnesium iodide
( left(boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{M} boldsymbol{g} boldsymbol{I}right) ) with a substance ( (boldsymbol{A}) )
follow by treatment with dilute aqueous
acid. Compound ( (B) ) dose not react with
( P C C ) in dichloromethane. Identify ( (A) ? )
A. 0
( C H_{3}-C-H )
B. ( quad o )
I
[
C H_{3} C H_{2} C C H_{3}
]
( mathbf{c} cdot H_{2} C=O )
D.
12
736 The IUPAC name of
( left(boldsymbol{C H}_{3}right)_{2} boldsymbol{C H C H}_{2} boldsymbol{C H}_{2} boldsymbol{O H} ) is:
A. 3-Methyl butan-1-ol
B. 2-methyl pentan-1-ol
c. 3-ethyl pentan-1-o
D. 2-ethyl butan-1-ol
12
737 Explain why is ortho nitrophenol more acidic than ortho methoxyphenol? 12
738 Out of benzene and phenol, phenol is
more easily nitrated
because
A. presene of -OH group in phenol increases the electron density at ortho and para – position
B. presene of -OH group in phenol decreases the electron density at ortho and para – position
c. nitration being electrophilic substitution requires less density at ortho and para- position
D. phenol is more reactive than benzene due to -R effect
12
739 Destructive distillation of wood in the
laboratory will result in the formation of
A. Ethanol
B. Methane
c. Methanol
D. Butane
12
740 The major product(s) of the following reaction is(are):
( A cdot P )
в. ( Q )
( c . R )
D.
12
741 Correct order of boiling point is:
A. Methanol < ethylene glycol < ethanol
B. Methanol < ethanol < ethylene glycol
C. Ethanol < ethylene glycol < methanol
D. Ethylene glycol < methanol < ethanol
12
742 Which one of the following methods is
used to prepare ( M e_{3} ) COEt with a good
yield?
A . Mixing EtONa with ( M e_{3} C C l )
B. Mixing ( M e_{3} C O N a ) with ( E t C l )
C. Heating a mixture of ( (1: 1) E t O H ) and ( M e_{3} C O H ) in the presence of ( operatorname{conc} . H_{2} S O_{4} )
D. Treatment of ( M e_{3} C O H ) with ( E t M g I )
12
743 The boiling point of phenols are higher than the hydrocarbons of comparable
masses due to:
A. more polarising power
B. presence of hydrogen bonding
c. resonance stabilisation
D. acidic character
12
744 Q Type your question
( A )
B
( c )
( D )
12
745 8
( b )
8
8
12
746 ( = )
( d_{c} )
( d sigma )
12
747 Arrange the following compounds in increasing order of boiling point.
( begin{array}{ll}text { Propan-1-ol } & text { Butan-1-ol } \ text { I } & text { II } \ text { Butan-2-ol } & text { Pentan-1-ol } \ text { III } & text { IV }end{array} )
A. ( I<I I I<I I<I V )
В. ( I I<I I I<I V<I )
c. ( I I<I V<I I I<V I )
D. ( I I I<I<I I<I V )
12
748 The ether which on hydrolysis gives single product is:
A. phenetol
B. tetrahydrofuran
c. anisole
D. all of the above
12
749 The compound with formula ( C_{6} H_{10} O ) is:
Yellow ppt.
( A )
B.
( c )
4-methoxypent-2-yne Chemical Formula: ( C_{6} H_{10} O )
D. none of the above
12
750 Predict the major product of acid catalysed dehydration:
(i) 1-methyl cyclohexanol
(ii) Butan-1-ol
12
751 Which of the following is the first oxidation product of secondary alcohol?
A. Alkene
B. Aldehyde
c. Ketone
D. carboxylic acid
12
752 Write the name and structure of an
alcohol with four carbon atoms in its
molecule.
12
753 ( x )
( y_{x}^{i} )
( y_{x}^{y} )
( x )
12
754 When phenol is treated with ( B r_{2} ) -water,
the product is:
A. ( sigma ) -and p-bromophenol
B. 2, 3,4-tribromophenol
c. 2,4,6 – tribromophenol
D. none of these
12
755 The decreasing order of the ease of
ionization under acidic conditions of
above alcohols will be
( A cdot I>I I I>I I )
3. ( I>I I>I I I )
c. ( I I>I I I>I )
( . I I>I>I I I )
( I )
12
756 The IUPAC name for
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}(boldsymbol{O H}) boldsymbol{C H}=boldsymbol{C H}_{2} )
A. 2-methyl butyl alcohol
B. 2-methyl butanol – 1
c. Pent-1-ene-3-ol
D. 2- methyl butanol and – 2- ol
12
757 a) Write the mechanism of acid
catalysed dehydration of ethanol to ethene.
b) Between phenol and alcohol which is
more acidic? Why?
12
758 Conversion of given reaction to the
given product will take place in how
many step?
12
759 How will you prepare iodoform in the laboratory with the help of ethyl alcohol? 12
760 Phenol is heated with a solution of a
mixture of ( K B r ) and ( K B r O_{3} . ) The major
product obtained in the above reaction
is:
A. 2 -bromophenol
B. 3-bromophenol
c. 4 -bromophenol
D. 2,4,6 -tribromophenol
12
761 toppr
Q Type your ques
The cleavage of ( C-O ) bond takes place
under drastic conditions with excess of
hydrogen halide, ( boldsymbol{R}-boldsymbol{O}-boldsymbol{R}+ )
( 2 H X rightarrow H X rightarrow 2 R X+H_{2} O )
If hydrogen halide is not taken in excess, then one molecule each of
alcohol and alkyl halide are formed, ( boldsymbol{R}-boldsymbol{O}-boldsymbol{R}+boldsymbol{H} boldsymbol{I} stackrel{^{373} boldsymbol{H}} boldsymbol{R}-boldsymbol{O} boldsymbol{H}+boldsymbol{R}- )
I. The order of reactivity of hydrogen
halides towards the above mentioned
reaction depends on the bond strength of halogenated acids. Weaker is the ( boldsymbol{H}-boldsymbol{X} ) bond, greater is its reactivity. In
case of unsymmetrical ethers, the site of cleavage is such that the halide is formed from the alkyl group which is tertiary, so that the halide formed is tertiary halide.
Indicate whether the following statements / reactions are true or false.
The order of hydrogen halide reactivity is ( boldsymbol{H} boldsymbol{I}<boldsymbol{H} boldsymbol{B r}<boldsymbol{H} boldsymbol{C l} )
A. True
B. False
12
762 Question 1. What is the structure and IUPAC name of glycerol? 12
763 The formation of phenol from benzene diazonium chloride is a
A. Hydrolysis reaction
B. pyrolysis reaction
c. Photosynthesis reaction
D. combustion raection
12
764 Which of the following does NOT involve application of Methanol?
A. As a solvent
B. As an anti-freeze in pipelines
c. In consumable liquor
D. In Windshield washer fluid
12
765 (P) and (Q) respectively are:
( mathrm{Ph}-mathrm{C}_{mathrm{CH}_{3}}^{mathrm{H}}-mathrm{O}-mathrm{CH}_{3} quad stackrel{mathrm{HBr}}{longrightarrow} quad begin{array}{l}(mathrm{P}) \ text { Aiconol }end{array}+quad begin{array}{l}(mathrm{Q}) \ text { Alkynalide }end{array} )
( A )
( mathrm{Ph}-mathrm{C}-mathrm{OH}, mathrm{CH}_{3}-mathrm{Br} )
B.
( c )
( mathrm{CH}_{3}-mathrm{OH}, mathrm{Ph}-underset{mathrm{Br}}{mathrm{CH}}-mathrm{CH}_{3} )
( D )
( mathrm{Ph}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{Br}, mathrm{CH}_{3}-mathrm{OH} )
12
766 Methanol is now prepared from:
A. water gas
B. sugar through fermentation
c. wood
D. both ( A ) and ( B )
12
767 of molasses takes place in the
presence of enzymes.
A. Fermentation
B. Reduction
c. Polymerization
D. Oxidation
12
768 Among i-iii the boiling point follows the
order.
(i)
(ii)
(iii)
A ( . i i<i< ) ii ( i )
B . ( i i i<i i<i )
c. ( i<i i< ) ii ( i )
D. ( i i<i i i<i )
12
769 The increasing order of the rate of
oxidation with ( H I O_{4} ) of the following is:
( (Pi) )
(III)
( (mathrm{IV}) )
A. ( |V<|mid<|<1 )
B. ( |<||<|||<mid V )
C. ( |V<|mid=|<1 )
D. ( mid<|=|<I V )
12
770 While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam
volatile? Give reason.
12
771 Q Type your question
[
underset{mathbf{M e} atop mathbf{P r o p e n}}^{mathbf{S}}+mathbf{P} mathrm{d} mathrm{Cl}_{2}+mathbf{H}_{2} mathbf{O} frac{mathbf{C u C l}_{2}}{mathbf{O}_{2}} underbrace{mathbf{O}}_{mathbf{M e}} |_{mathbf{M e}}+mathbf{P} mathbf{d}+mathbf{3 H C l}
]
(The reaction proceeds via the addition of ( mathbf{H}^{oplus} ) and ( mathbf{O} mathbf{H} ) by Markovnikov’s rule followed by oxidation.
(or)
(iii) ( mathrm{BH}_{3}+mathrm{THF}+mathrm{CH}_{3} mathrm{COOH} )
OH
(Wacker process)
This question has multiple correct options
( mathbf{A} cdot H_{2} / P t quad M M P P quad ) Coldalk. ( K M n O_{4} quad O_{2}+ )
[
P d C l_{2}+C u C l_{2}+H_{2} O
]
( mathbf{B} cdot H_{2} / P d+B a S O_{4}+ )
quinoline( quad H C O_{3} H quad )Hotalk. ( K M n O_{4} )
( H )
( H g^{2+} )
( mathbf{c} cdot sin _{2} B H+ )
( C H_{3} C O O H quad P h C O_{3} H quad O s O_{4} / N a H S O_{3} )
[
P d C l_{2}+C u C l_{2}+H_{O}
]
( mathbf{D} cdot B H_{3}+T H F+ )
[
begin{array}{llll}
C H_{3} C O O H & M C P B A & O s O_{4} / H_{2} O_{2} & i
end{array}
]
12
772 Give reason for the higher boiling point
of ethanol in comparison
to methoxymethane.
12
773 Phenol in presence of sodium hydroxide reacts with chloroform to form
salicyladehyde. The reaction is known
as:
A. Kolbe’s reaction
B. Reimer-Tiemann reaction
c. stephen reaction
D. Etard reaction
12
774 Which of the following is used in the manufacture of ethanol?
A ( cdot C_{2} H_{6} )
B. ( C_{2} H_{2} )
( mathrm{c} cdot mathrm{CH}_{4} )
D. ( C_{2} H_{4} )
12
775 The highest boiling point is for:
A. ( C_{2} H_{5} O H )
в. ( C_{2} H_{5} C l )
( mathbf{c} cdot C_{2} H_{6} )
D. ( C H_{3} O C C H_{3} )
12
776 Benzylamine reacts with nitrous acid to form mainly?
A. phenol
B. benzyl alcohol
c. benzaldehyde
D. nitrosbenzene
12
777 Which of the following reaction is most
exothermic?
( A )
B.
( c )
D. ( dot{C H}_{3}+C H_{3} C H_{2} C H_{3} rightarrow C H_{4}+C H_{3} dot{C} H C H_{3} )
12
778 When ( 20 g m ) of a compound
( (A)left(M . F .=C_{4} H_{10} O_{4}right) ) reacts with
excess of ( C H_{3} M g B r, 14.6 L ) of ( C H_{4} ) is
obtained at STP. What is structural
formula of ( (boldsymbol{A}) ) ?
( A )
B.
( c )
D. Both (a) & (b)
12
779 The reaction can be classified as:
A. williamson ether synthesis reaction
B. alcohol formation reaction
C. dehydration reaction
D. williamson alcohol synthesis reaction
12
780 8
8
8
8
8
12
781 Which reagent can be used to convert
ethanol to diethyl ether?
A. ( A l_{2} O_{3} ) at ( 250^{circ} C )
B. conc. ( H_{2} S O_{4} ) at ( 170^{circ} C )
c. conc. ( H_{2} S O_{4} ) at ( 130^{0}-140^{0} C )
D. ( A l_{2} O_{3} ) at ( 350^{circ} C )
12
782 Write a balanced equation using the correct symbols for these chemical
reactions:
i) Action of hydrogen on ethene in the presence of nickel catalyst.
ii) Combustion of methane evolving carbondioxide and water.
iii) Dehydrogenation of ethanol.
iv) Decarboxylation of Sodium salt of ethanoic acid.
12
783 Choose the correct statement.
( mathbf{A} cdot A ) is more volatile than ( B )
B. ( B ) is more volatile than ( A )
( mathrm{C} . A ) is formed more rapidly at a higher temperature
D. ( A ) is formed in higher yield at a low temperature
12
784 Total number ( 1^{circ} ) and ( 3^{circ} ) alcohols
possible for ( C_{5} H_{11} O H ? )
12
785 Pyrolysis of benzene sulphonic acid to form phenol is by:
A. combustion
B. double displacement
c. addition-elimination
D. both A and B
12
786 Which pair of products would result from the acid cleavage of phenyl propyl ether with excess concentrated ( boldsymbol{H} boldsymbol{B r} ) ?
A. Phenol and 1-propanol
B. Bromobenzene and 1-propanol
c. Bromobenzene and 1-bromopropane
D. Phenol and 1-bromopropane
12
787 Which of the following soluble in water?
A. ( C H_{3} O H )
в. ( C H C l_{3} )
c. ( C C l_{4} )
D. ( C S_{2} )
12
788 Select the best combination of reagents
which will bring the above conversion.
( mathbf{A} cdot B r_{2} / F e B r_{3} ; H N O_{3} / H_{2} S O_{4} ; N a O H ; H_{2} / P t )
B . ( C H_{3} C O C l / A l C l_{3} ; B r_{2} / F e B r_{3} ; N a B H_{4} / C H_{3} O H )
c. ( C H_{3} C l / A l C l_{3} ; K M n O_{4} ; C H_{3} C l / A l C l_{3} ; N B S / h v )
( operatorname{LiAlH}_{4} / H_{2} O ; N a O H )
D. ( C H_{3} C l / A l C l_{3} ; H N O_{3} / H_{2} S O_{4} ; N B S / h v / N a O H )
12
789 Methanol is called as Marine Methanol
beacuse:
A. it is an essential compound for marine life
B. it is mostly obtained from deep sea bed
C. it is used as a marine fuel
D. it serves as a signal indicator for big ships on burning
12
790 What is the IUPAC name of the following
compound?
A. 3,4-Dimethyl-1-pentene-3-01
B. Isopropyl-3-methyl vinyl carbinol
c. 2,3-Dimethyl-4-pentene-3-ol
D. None of the above
12
791 topp
ом ком
Q туре уочr question
( mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{O}-mathrm{CH}_{3} )
( mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{CH}-mathrm{O}-mathrm{CH}_{3} )
( mathrm{CH}_{3} )
( mathrm{CH}_{3} )
( mathrm{CH}_{3}-mathrm{C}-mathrm{O}-mathrm{CH}_{3} )
( mathrm{CH}_{3} )
D.
( mathrm{CH}_{3}-mathrm{CH}-mathrm{CH}_{2}-mathrm{O}-mathrm{CH}_{3} )
( mathrm{CH}_{3} )
12
792 How will you convert Acetonitrile to
ethanol?
12
793 Balanced chemical equations for the following:
Monochloro ethane is hydrolysed with
aqueous KOH:
A ( cdot C H_{3} C H_{2} C l+K O H rightarrow C_{2} H_{5} O H+H C l+K_{2} O )
в. ( C H_{3} C H_{2} C l+K O H rightarrow C_{2} H_{3} O H+K C l+H_{2} O )
c. ( C H_{3} C H_{2} C l+K O H rightarrow C_{2} H_{3} C l+K O H+H_{2} )
D. ( C H_{3} C H_{2} C l+K O H rightarrow C_{2} H_{5} O H+K C l+H_{2} O )
12
794 Give the IUPAC name of
( boldsymbol{C l}_{2} boldsymbol{C H C H}_{2} boldsymbol{O H} )
12
795 Name the method which can give
following product
12
796 THE
202. CH,CH,CH,C=CH_BH,,THE > H,0,/0H_— ‘X’
Identify the product ‘X’:
(a) CHỊCH,CH,CH,CHO
(b) CH2CH2CH2CCH,
(c) CHỊCH,CH,CHO
(d) CH,CH,CCH,CH,
Obolno
12
797 Draw the structure of major monohalo product in each of the following reactions.
(ii)
12
798 Ethanol is heated with excess
concentrated ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} ) at ( 443 mathrm{K} )
i) Name the reaction that occurs and
explain it.
ii) Write the equation for the above reaction.
iii) What is the product formed? What happens when this gas is passed through bromine water?
iv) When ethanol vapour is passed through bromine water, why does no change occur?
12
799 Which of the following structural formula represents cyclohexyl alcohol?
( A )
B.
( c )
D. None of the above
12
800 Assertion
A mixture of o- nitrophenol and ( p ) nitrophenol can be separated by steam distillation.
Reason
p-nitrophenol is steam volatile whereas o-nitrophenol is not steam volatile.
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
801 Heating together of sodium ethoxide
and ethyl iodide will give:
A. ether
B. ethyl alcohol
c. acetaldehyde
D. acetic acid
12
802 All ethers are lighter than
A. benzene
B. phenol
c. acetone
D. water
12
803 Convert : Chloro benzene to phenol. 12
804 The boiling point of ( 95 % ) ethanol is higher than that of absolute ethanol.
A. True
B. False
12
805 Assertion
Paraffin wax is a white or colourless
soft solid derivable from petroleum.
Reason
Paraffins are unsaturated hydrocarbons with straight or branched chains which contain only carbon and hydrogen.
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
806 Why do alcohols possess higher boiling
points as compared to those of corresponding alkanes?
12
807 Which of the following statements is
not correct about methanol?
A. It is used for drinking purposes.
B. It is highly poisonous compound.
C. It can be prepared by reduction of formaldehyde with ( L i A l H_{4} )
D. It is miscible with water in all proportions.
12
808 Which of the following statement is not
true?
A. phenol is soluble in Naol
B. phenol is a weak acid
C. phenol gives violet colouration with neutral ( F e C l_{3} )
D. phenol liberates ( C O_{2} ) from ( N a_{2} C O_{3} ) solution
12
809 The major product in the following
conversion is
( A )
( B )
( c )
( D )
12
810 Explain: Propan-1-ol has higher boiling point than n-butane. 12
811 Name the reagents used in the
following reaction:
Dehydration of propan-2-ol to propene.
12
812 Phenol is acidic, because:
A. it contains ( O H ) group
B. it has a cyclic structure
c. it conjugate base is stabilized by resonance
D. all the above
12
813 Ether is formed when alkyl halide is treated with sodium alkoxide. This
method is known as:
A. Hoffmann reaction
B. Williamson synthesis
c. Wurtz synthesis
D. Kolbe’s reaction
12
814 About above reaction the incorrect
statement is
Product
A. The name of reaction is Riemer teimann’s reaction
B. The intermediate in the reaction is dichloro carbene
c. The final product is o-hydroxy benzaldehyde
D. The final product is benzyl chloride
12
815 Which of the following is produced during the following reaction? ( boldsymbol{C O}(boldsymbol{g})+boldsymbol{H}_{2}(boldsymbol{g}) frac{575 boldsymbol{K}}{Z n O, C r_{2} O_{3}} )
A. Ethanol
B. Ethanal
c. Methanol
D. Methanal
12
816 The following reaction is probably:
( mathbf{2} boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{O} boldsymbol{H} frac{boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4}}{boldsymbol{H} e a t} )
( left(boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{C H}_{2}right)_{2} boldsymbol{O}+boldsymbol{H}_{2} boldsymbol{O} )
A . an ( E 2 ) -type reaction involving the protonated alcohol as the substrate
B. an ( S_{N} 1 ) type reaction involving the protonated alcohol as the substrate
c. an ( E 1 ) type reaction involving the protonated alcohol as the substrate
D. an ( S_{N} 2 ) type reaction involving the protonated alcohol as the substrate
12
817 Mark the correct order of decreasing
acid strength of the following
compounds.
( (b) )
( (c) )
( (d) )
( mathrm{e} )
( A cdot e>d>b>a>c )
( B cdot b>d>a>c>e )
( c cdot d>e>c>b>a )
( D cdot e>d>c>b>a )
12
818 61. When phenol reacts with phthalic anhydride in
presence of H2SO4 and heated and hot reaction
mixture is poured in NaOH solution, then product
formed is
(a) alizarin
(b) methyl orange
(c) fluorescein
(d) phenolphthalein.
(ΔΙΛΛς)
12
819 Reaction of monochloro ethane is
hydrolysed with aqueous KOH as follows:
( boldsymbol{C H}_{3} boldsymbol{C H}_{boldsymbol{x}} boldsymbol{C l}+boldsymbol{a q} cdot boldsymbol{K O H} rightarrow )
( boldsymbol{C}_{2} boldsymbol{H}_{boldsymbol{y}} boldsymbol{O} boldsymbol{H}+boldsymbol{K} boldsymbol{C l} )
Find ( x ) and ( y )
A. ( x=1, y=3 )
B. ( x=1, y=5 )
c. ( x=2, y=3 )
D. ( x=2, y=5 )
12
820 Williamson’s synthesis uses mechanism.
( mathbf{A} cdot S_{N} 1 )
B. ( S_{N} 2 )
C . either ( S_{N} 1 ) or ( S_{N} 2 )
D. none
12
821 When the vapours of alcohol are passed
over copper or zinc oxide, then the following compound has no chances to be formed?
A. Alkanal
B. Alkyne
c. Alkene
D. Alkanone
12
822 Give the decreasing order of reactivity of the following alkyl halides in the Williamson’ s reaction.
i. ( left(boldsymbol{C H}_{3}right)_{3} boldsymbol{C}-boldsymbol{C H}_{2} boldsymbol{B r} )
ii. ( boldsymbol{C l C H}_{2} boldsymbol{C H}=boldsymbol{C H}_{2} )
iii. ( boldsymbol{C l C H}_{2} boldsymbol{C H}_{2} boldsymbol{C H}_{3} )
¡v. ( B r C H_{2} C H_{2} C H_{3} )
( A ). ii ( > ) iv ( > ) iii ( >i )
B. i>iii>iv>ii
c. ii > ii >iv > i
D. i > iv > iii > i
12
823 The reactivities of methanol (I), ( 1- )
propanol (II), 2 – butanol (III) and 2 methyl-2- propanol (IV) towards sodium
metal follow the order:
( A cdot|>||>|||>mid V )
B. IV>|||> || > |
c. ।>IV> || > ||
D. IV > || > || > |
12
824 Assertion
Solubility on n-alcohols in water decreases with increase in molecular
weight.
Reason
The relative proportion of the hydrocarbon part in alcohols increases with increasing molecular weight which permits enhanced hydrogen bond with
water.
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
825 Q Type your question
( A )
B.
( c )
( D )
12
826 Which are the sources of phenol?
This question has multiple correct options
A. Cumene
B. Hydrolysis
C. Middle oil of coal tar distillation
D. Reaction of diazonium salt with ( H_{3} P O_{2} )
12
827 Write the mechanism involved in the
esterification of a carboxylic acid with alcohol
12
828 The ether when treated with ( H I )
produces:
A. alcohol + alkyl iodide
B. alkyl iodide only
c. alcohol only
D. one hydrogen in ether is substituted by iodide
12
829 2.2 ( g ) of an alcohol (A) when treated with
( boldsymbol{C H}_{3}- ) Mgl liberates ( 560 mathrm{mL} ) of ( boldsymbol{C H}_{4} ) at
STP. Alcohol (A) on dehydration followed by ozonolysis gives ketone (B) along with (C). Oxime of ketone (B) contains
( 19.17 % ) N. (A) on oxidation gives ketone
(D) having the same number of the carbon atom.
The molecular mass of (A) is?
A . 74
B. 88
( c cdot 60 )
D. 102
12
830 Give the IUPAC name for the following alcohols. Classify as primary or secondary or teritiary alcohol ( left(boldsymbol{C H}_{3}right)_{3} boldsymbol{C}-underset{boldsymbol{o} boldsymbol{H}}{boldsymbol{C}} boldsymbol{H}-boldsymbol{C}_{2} boldsymbol{H}_{5} ) 12
831 The IUPAC name of the following compound is 2,4,6 – tribromophenol.
A. True
B. False
12
832 In the following reaction ( boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{O} boldsymbol{C}_{2} boldsymbol{H}_{5}+boldsymbol{4} boldsymbol{H} stackrel{boldsymbol{R e d} boldsymbol{P}+boldsymbol{H I}}{longrightarrow} boldsymbol{2} boldsymbol{X}+ )
( boldsymbol{H}_{2} boldsymbol{O}, boldsymbol{X} ) is:
A. ethane
B. ethylene
c. butane
D. propane
12
833 Which is the best synthesis of the ether
(A) shown in the figure?
12
834 Which of the following compounds has lowest boiling point?
A. n-butyl alcohol
B. Isobutyl alcohol
c. Tert-butyl alcohol
D. Sec-butyl alcohol
12
835 33. Alcohol prepared by the distilla
tion of wood is :
(1) Propyl alcohol
(2) Methyl alcohol
(3) Ethyl alcohol
(4) Glycerol
12
836 What compounds are used in reaction of ester preparation?
A. An organic acid and an aldehyde
B. An alcohol and an aldehyde
c. An acid and a ketone
D. Two alcohols
E. An alcohol and an organic acid
12
837 In which of the following substances, ethanol is not used?
A. Tonics
B. cough mixture
c. candle
D. Alcohol
12
838 Cumene process is the most important
commercial method for the
manufacture of phenol. Cumene is:
A. (1-methylethyl ) benzene
B. ethyl benzene
c. vinyl benzene
D. propyl benzene
12
839 Benzene ( stackrel{X}{longrightarrow} ) Benzene sulphonicacid
Identify ( X ? )
A. Sulphuric acid
B. Hydrochloric acid
c. Sulphur
D. Both A and C
12
840 Action of hydrogen iodide on anisole
gives:
A. phenol and iodomethane
B. iodobenzene and methanol
c. phenol and methanol
D. iodobenzene and iodomethane
12
841 Among the following which has the highest boiling point?
A ( cdot C H_{3} C H_{2} ) OH
в. ( C H_{3} C H_{2} C H_{3} )
( mathbf{c} cdot C H_{2}=C H C H_{3} )
D. ( C H_{3} O C H_{3} )
12
842 The correct order of boiling point of
1,2,3 alcohol is:
( mathbf{A} cdot 1>2>3 )
В. ( 3>2>1 )
c. ( 2>1>3 )
D ( .2>3>1 )
12
843 With ethoxyethane which compound is miscible to almost the same extent?
A. Formaldehyde
B. Bhutanone
c. Butan-1-ol
D. Propan-1-ol
12
844 Arrange the following compounds in the increasing order of their acid strength:
p-cresol, p-nitrophenol, phenol
12
845 An alcohol with ( D . U=1 ) exists having
a ( 2^{circ} ) hydroxy group with the
molecular formula of ( C_{3} H_{6} O ) is:
A. isopropanol
B. propenol
c. cyclopropenol
D. cyclopropanol
12
846 IUPAC name of the given compound is:
[
begin{array}{c}
mathrm{H}_{3} mathrm{C}-mathrm{CH}-mathrm{CH}_{2}-mathrm{CH}-mathrm{CH}-mathrm{CH}_{2}-mathrm{CH}_{3} \
mathrm{OH}
end{array}
]
A. 5 -ethylheptane-2.4-diol
B. 3-ethylheptane-4,6-diol
C . 4-ethyl-1-methylhexane-1,3-diol
D. none of these
12
847 Williamson synthesis is a method of preparation of
A. symmetrical ethers
B. unsymmetrical ethers
c. diaryl ethers
D. both A and B
12
848 Question 7. When phenol is treated with bromine water, white
precipitate is obtained. Give the structure and the name of the compound
formed.
12
849 ( boldsymbol{C H}_{3}-boldsymbol{O H} stackrel{boldsymbol{P}+boldsymbol{I}_{2}}{longrightarrow} boldsymbol{A} frac{boldsymbol{H} text {eating}}{operatorname{alc} K C boldsymbol{N}} )
( boldsymbol{B} frac{boldsymbol{L i} A boldsymbol{l} boldsymbol{H}_{4}}{boldsymbol{N a} / text {alcohol}} boldsymbol{C} frac{boldsymbol{H} boldsymbol{N} boldsymbol{O}_{2}}{boldsymbol{N a N O _ { 2 }}+boldsymbol{d i l} boldsymbol{H C l}} boldsymbol{D} )
What is ( D ? )
A. ( C H_{3} C H O )
в. ( C H_{3} )СООН
c. ( C H_{3} C H_{2} ) ОН
D. ( C H_{3}-O-C H_{3} )
12
850 ( boldsymbol{R}-boldsymbol{O H} stackrel{boldsymbol{P B r}_{3}}{boldsymbol{A}} )
( boldsymbol{B} frac{text {Grignard reaction}}{boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{O}} boldsymbol{C} stackrel{boldsymbol{H}^{+} / boldsymbol{H}_{2} boldsymbol{O}}{boldsymbol{N}} boldsymbol{D} )
What are ( A, B, C ) and ( D ) are
respectively?
( mathbf{A} cdot R-B r, R-M g-B r, R-C H_{2}-O-M g-B r, R- )
( C H_{2} C H_{2}-O H )
B . ( R-B r, R-M g-B r, R-C H_{2}-O-C H_{2}-M g- )
( B r, R-C H_{2} C H_{2}-O H )
c. ( R-B r, R-M g-B r, R-C H_{2}-C H_{2}-O-M g- )
( B r, R-C H_{2} C H_{2}-O H )
D. ( R-B r, R-M g-B r, R-C H_{2}-C H_{2}-O-M g- )
( B r, R-C H_{2} O H )
12
851 Give equations of the following reactions:
(i) Oxidation of propan-1-ol with alkaline
( boldsymbol{K} boldsymbol{M} boldsymbol{n} boldsymbol{O}_{4} ) solution
(ii) Bromine in ( C S_{2} ) with phenol.
(iii) Dilute ( boldsymbol{H} boldsymbol{N} boldsymbol{O}_{3} ) with phenol
(iv) Treating phenol wih chloroform in
presence of aqueous ( N a O H )
12
852 Which of the following is a primary alcohol?
A. Butan- 2 – – ०
B. 2 – Methylpropan-1- ol
c. 2 – Methylpropan – 2- ol
D. None of the above
12
853 Question 17. Give equation of the following reactions.
(i) Oxidation of propan-l-ol with alkaline KMnO, solution.
(ii) Bromine in CS, with phenol.
(iii) Dilute HNO, with phenol.
(iv) Treating phenol with chloroform in presence of aqueous NaOH.
(1) Alcohol oxidises to carboxylic acid.
(ii) o-and p-bromophenol are formed.
fiil) Nitration (introduction of NO, group) at o- and p- positions.
(v) Reimer-Tiemann reaction involves introduction of -CHO group at
ortho position, salicylaldehyde is formed.
T
10LT
12
854 Which of the following reactions is
possible?
A. ( M e_{3} C-O N a+M e_{3} C-B r rightarrow M e_{3} C-O-C M e_{3} )
в. ( M e_{2} C H-O N a+M e_{2}+M e_{2} C H M e_{2} C H B r rightarrow )
( M e_{2} C H-O-C H M e_{2} )
c. ( P h O N a+P h B r rightarrow P h O P h )
D. ( P h O N a+C H_{3} B r rightarrow P h O C H_{3} )
12
855 Which of the following has lowest boiling point?
A. ( p ) -nitrophenol
B. ( m ) -nitrophenol
c. ( o ) -nitropheno
D. phenol
12
856 Reagents used for industrial
preparation of methanol are:
A. ( C O+H_{2} )
в. ( H C H O+H_{2} )
c. ( C O_{2}+H_{2} )
D. ( H C O O H+H_{2} )
12
857 IUPAC name is 2-propoxycyclohexane.
Is the above statement correct?
A. True
B. False
12

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