Aldehydes, Ketones And Carboxylic Acids Questions

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List of aldehydes, ketones and carboxylic acids Questions

Question No Questions Class
1 ( frac{1}{y} )
( frac{8}{8} )
( x )
12
2 A hydrocarbon ( C_{6} H_{10} ) absorbs only one
molecule of ( boldsymbol{H}_{2} ) on catalytic hydrogenation. On ozonolysis, the
hydrocarbon yields ( C H Oleft(C H_{2}right)_{4} C H O )
The hydrocarbon is:
A. cyclohexene
B. 1,5-hexadiene
c. 1,3 -cyclohexadiene
D. 1-methylcyclopentene
12
3 Identify the rate of decarboxylation of isomeric pyridine acetic acids by the similar mechanism.
( A cdot 1>2>3 )
B. ( 1>3>2 )
c. ( 3>2>1 )
D. ( 2>1>3 )
12
4 Which of the following is a volatile liquid at room temperature?
A. Ethanal
B. Ethane
c. Ethene
D. None of these
12
5 Major product of above reaction:
A. ( C_{6} H_{5}-C H=C H-C O O H )
в. ( C_{6} H_{5}- ) СООН
( mathrm{c} cdot C_{6} H_{5}-C H=C H-C O O C H_{3} )
( mathrm{D} cdot C_{6} H_{5} C H_{2} C H O )
12
6 From the list of alkenes given below, identify the alkenes which on ozonolysis give only ketones.
(a) 2 methyl-1-butene
(b) 1-butene
(c) 2,3 -dimethyl-2-butene
(d) 3 -methyl-2-pentene
(e) 3,4 -dimethyl-3-hexene
(f) 2,5-dimethyl-2,4-hexadiene
( A cdot a, b ) and ( c )
B. ( c ) and ( e ) only
c. ( d, e ) and ( f )
D. ( c, d ) and ( e )
12
7 45 Assertion (A) Aromatic aldehydes and formaldehyde undergo Cannizza
reaction.
Reason (R) Aromatic aldehydes are almost as reactive as formaldehyde.
A
12
8 83. A hydrocarbon reacts with HI to give (X) which on
reacting with aqueous KOH forms (Y). Oxidation of
(Y) gives 3-methyl-2-butanone.
The hydrocarbon is:
(a) CH2CH=C-CH; (b) CH2 = CH – CH – CH3
CH3
CH3
(C) CH3 – CH2 – C = CH, (d) CH=C- CH-CH3
CH3
CHZ
12
9 Major product X will be:
( mathbf{A} )
( mathbf{B} )
( mathbf{c} )
D.
12
10 Boiling points of aldehydes and ketones
are:
A. higher than hydrocarbons and ethers
B. higher than hydrocarbons but lower than ethers
C. higher than ethers but lower than hydrocarbons
D. lower than hydrocarbons and ethers
12
11 Benzoin is:
A. compound containing an aldehyde and a ketonic
group
B. ( alpha, beta- ) unsaturated acid
c. ( alpha- )hydroxy aldehyde
D. ( alpha- )hydroxy ketone
12
12 Match the column- 12
13 Cyanohydrin of which of the following compound on hydrolysis gives optically active product?
A . HCHO
в. ( C H_{3} C H O )
c. ( C H_{3} ) COCH( _{3} )
D. All the above
12
14 Which is most optimum site for EAS
(Electrophilic Aromatic Substitution) in
the given compound?
12
15 What is the secondary suffix for aldehyde?
A . -al
B. – -one
c. – -oic acid
D. -oate
12
16 Q. 31 Alkenes c-Cand carbonyl compounds (= both contain a t bond
but alkenes show electrophilic addition reactions whereas carbonyl
compounds show nucleophilic addition reactions. Explain.
12
17 Benzoyl chloride on reduction with
( boldsymbol{H}_{2} / boldsymbol{P} boldsymbol{d}-boldsymbol{B} boldsymbol{a} boldsymbol{S} boldsymbol{O}_{4} )
produces
A. Benzoic acid
B. Benzyl alcohol
c. Benzoyl sulphate
D. Benzaldehyde
12
18 Describe the following:
(i) Cross aldol condensation
(ii) Decarboxylation
12
19 ( frac{x}{x} ) 12
20 Arrange the following compounds in an increasing order of their reactivity in nucleophilic addition reactions:
ethanol, propanal, propanone, butanone
12
21 An organic compound of molecular
formula ( C_{3} H_{6} O ) did not give a silver
mirror with Tollen’s reagent, but gave an oxime with hydroxylamine, it may be:
A ( cdot C H_{3} C O C H_{3} )
в. ( C_{2} H_{5} C H O )
c. ( C H_{2}=C H-C H_{2}-O H )
D. ( C H_{3}-O-C H=C H_{2} )
12
22 Give the IUPAC name of the given compounds
[
mathrm{CH}_{3}-mathrm{NH}-mathrm{CHO}
]
12
23 Polarisation of electron in acrolein
( left(boldsymbol{C H}_{2}=boldsymbol{C H}-boldsymbol{C H}=boldsymbol{O}right) ) or resonance
hybrid of acrolein can be written as:
( A )
[
stackrel{partial^{+}}{mathrm{CH}_{2}} ldots ldots ldots ldots ldots
]
B. ( stackrel{partial^{-}}{mathrm{CH}}_{2} cdots ldots ldots ldots ldots+ldots 0^{+} )
( c )
( partial^{-} ldots ldots mathrm{CH}-mathrm{CH} cdots cdot mathrm{O}^{-} )
( mathrm{CH}_{2} cdots-mathrm{O}^{-} )
D. ( stackrel{partial^{+}}{mathrm{CH}}_{2} cdots ldots+cdots cdot mathrm{CH}=ldots 0^{+} )
12
24 Clemmensen’s reduction reaction is:
( A )
в. ( C_{6} H_{5}-C O C H_{3}+ )
[
N H_{2} N H_{2} C_{2} H_{5} O N a C_{6} H_{5} C H_{2} C H_{3}
]
c. ( C H_{3} C O C H_{3}+4 H I R e d quad P_{>} C H_{3} C H_{2} C H_{3} )
D. All the above
12
25 0
7
( frac{d}{d x} )
12
26 When methane is heated with dioxygen
in the presence of ( M o_{2} O_{3} ) catalyst, the
organic product obtained is:
A. methanal
B. ethanol acid
c. methanol
D. ethanol
E. 2-methyl propar-2-ol
12
27 Arrange benzoic acid, 4-methyl benzoic
acid and 4 -nitrobenzoic acid in
increasing order of their acidic
strength.
12
28 Formaldehyde, is the first member of the aldehyde family is a at a
ordinary temperature
A . solid
B. liquid
c. gas
D. none of these
12
29 Compound ( (X) C_{4} H_{8} O ) decolourises Baeyer’s reagent. It undergoes
hydrolysis on reaction with dil. ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} ) and produces (Y) and (Z). Both (Y) and
(z) give positive iodoform test. But, only
(Y) gives positive Tollen’s test.Choose
the correct statements.
This question has multiple correct options
( A )
( (Y) stackrel{a q_{1} N a O H(10 %) Delta}_{longrightarrow} C H_{3}-C H=C H-C H O )
B. Pyridinium chlorochromate (PCC)
(z)
( c )
( (mathrm{X}) frac{mathrm{B} mathrm{r}_{2} / mathrm{CCl}_{4}}{longrightarrow} mathrm{CH}_{2}-mathrm{CH}-mathrm{O}-mathrm{CH}_{2}-mathrm{CH}_{3} )
( mathrm{Br} quad mathrm{Br} )
( D )
[
(X) frac{(i) O_{3}}{(i j) Z n / H_{2} O}(Y)+text { other product }
]
12
30 The reaction between ( C O_{2} ) and ( a )
Grignard regent will yield :
A. An alkyl magnesium halide.
B. an alcohol
c. magnesium carbonate.
D. a carboxylic acid
12
31 Give the products formed on reductive ozonolysis with LAH and oxidative
ozonolysis with ( H_{2} O_{2} ), from the compound 2mol butan – 2 – one.
12
32 Match the Structure in column-I with
their Common name given in column
II. Matching can be one or more than one.
12
33 Aldol condensation will not take place in:
A. ( H C H O )
в. ( C H_{3} C H_{2} C H O )
( mathbf{c} cdot C H_{3} C H O )
D. ( C H_{3} ) COCH( _{3} )
12
34 Question 3. Benzaldehyde can be obtained from benzal chloride. Write
reactions for obtaining benzal chloride and then benzaldehyde from it.
colectie
TE
12
35 Draw the structure(s) of the following
compound:
3-Methylbutanal
12
36 The major product P formed in the
following reaction is:
( A )
B.
( c )
( D )
( E )
12
37 The products are :
Products ( P, Q, ) and ( R ) are:
( (mathrm{I}) )
A. ( P Rightarrow I, Q ) and ( R Rightarrow | )
B. P and Q both I and II, ( R Rightarrow ) II
C. ( P ) is both I and II, ( Q ) and ( R Rightarrow 1 )
D. ( P, Q, ) and ( R Rightarrow A | ) II
12
38 Consider the following reaction:
The compound ( D ) is an ortho-isomer
and E is a ( p- ) isomer. The compounds
( D ) and ( E, ) respectively are :
A. Phthalic acid and isophthalic acids
B. Isophthalic and phthalic acids
c. Terephthalic and phthalic acids
D. Phthalic and terephthalic acids
12
39 Which of the following is a true
statement?
A. Among the carbonyl compounds, ketones have slightly higher boiling points than the isomeric aldehydes. This is due to the presence of two electron releasing groups around the carbonyl carbon which makes them more polar.
B. Among the carbonyl compounds, ketones have slightly lower boiling points than the isomeric aldehydes. This is due to the presence of two electron releasing groups around the carbonyl carbon which makes them more polar.
C. Among the carbonyl compounds, ketones have slightly lower boiling points than the isomeric aldehydes. This is due to the presence of two electron releasing groups around the carbonyl carbon which makes them less polar.
D. Among the carbonyl compounds, ketones have slightly higher boiling points than the isomeric aldehydes. This is due to the presence of two electron releasing groups around the carbonyl carbon which makes them less polar.
12
40 The product ( ^{prime} boldsymbol{A}^{prime} ) is:
A ( cdot C_{6} H_{5} C O C H_{3} )
В ( cdot C_{6} H_{5} ) СС
( mathbf{c} cdot C_{6} H_{5} C H O )
D. ( C_{6} H_{5} O H )
12
41 The increasing order of base strength of
( boldsymbol{C l}^{-} boldsymbol{C H}_{3} boldsymbol{C O O}^{-},^{-boldsymbol{O H}} ) and ( boldsymbol{F}^{-} ) is
A ( cdot C l^{-}<F^{-}<C H_{3} C O O^{-}F^{-}>C H_{3} C O O^{-}>^{-} O H )
c. ( C H_{3} C O O^{-}<C l^{-}<F^{-}<^{-} O H )
D. None of these
12
42 Cyclohexene on ozonolysis followed by a reaction with zinc dust and water gives
compound (A). Compound (A) is:
( A )
B.
( c )
D.
12
43 The olefin which on ozonolysis gives
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H O} ) and ( boldsymbol{C H}_{3} boldsymbol{C H O} ) is :
A. 1 -butene
B. 2-butene
c. 1-pentene
D. Pent-2-ene
12
44 ( R-C H_{2}-C H_{2} O H ) can be converted
to ( boldsymbol{R}-boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C H}_{2} boldsymbol{C O O H} . ) The correct
sequence of reagents is:
A ( cdot P B r_{3}, K C N, H_{3} O^{+} )
в. ( P B r_{3}, K C N, H_{2} )
c. ( K C N, H^{+} )
D. ( H C N, P B r_{3}, H^{+} )
12
45 Which aldehyde smell like bitter
aImond?
12
46 Draw the structure of the following compounds:
4-Methylpent-3-en-2-one
12
47 ( boldsymbol{Y} stackrel{text {excess } H C l}{ } boldsymbol{H} boldsymbol{C} equiv boldsymbol{C} boldsymbol{H} stackrel{boldsymbol{O}_{3} / Z n, boldsymbol{H}_{2} boldsymbol{O}}{boldsymbol{N}} boldsymbol{X} )
( X, Y ) respectively are :
A ( cdot C O_{2}, C H_{3} C H C l )
B. ( mathrm{CO}_{2}, quad_{mathrm{Cl}}^{mathrm{CH}_{2}-mathrm{CH}_{2}} mathrm{Cl} )
( c )
( mathrm{H}_{mathrm{O}}^{mathrm{C}-mathrm{C}}_{mathrm{O}}^{-mathrm{H},}, mathrm{CH}_{3}-mathrm{CHCl}_{2} )
D.
( underset{|}{|}_{mathrm{O}}^{mathrm{C}-mathrm{C}-mathrm{H},} underbrace{mathrm{CH}_{2}-}_{mathrm{O}} frac{mathrm{CH}_{2}}{mathrm{Cl}} mathrm{Cl} )
12
48 The IUPAC name of succinic acid
is Butane-1,4-dioic acid.
If true enter ( 1, ) if false enter 0
12
49 Why the lower members of aldehyde and ketone are soluble in water while higher
members are sparingly soluble or insoluble in water?
12
50 Which of the following structures is not correctly matched?
( A )
( H_{3} )
( alpha ) – Methoxypropionaldehyde ( -H_{3} C-C H-C-H )
в. 3-Hydroxybutanal – ( C H_{3}-C H-C H_{2} C H O )
( c )
4 – Oxopentanal ( -C H_{3} C H_{2} C H_{2}-C_{-} C H O )
D. Di-sec. -butylketone – ( C H_{3} C H_{2}-C H-C-C H )
( C H_{2} C H_{3} )
12
51 Write the product of this reaction:
[
left.left.left.right|_{mathrm{OH}} ^{mathrm{CH}_{2}} frac{mathrm{CH}}{mathrm{OH}} frac{mathrm{CH}-mathrm{CH}_{2}}{mathrm{OH}}right|_{mathrm{OH}} ^{mathrm{HIO}_{4}}right)
]
12
52 Write te structural formula and names
of all four possible aldol condensation products from ethanal and propanal
12
53 ( underbrace{n}_{n} ) 12
54 The boiling point of Propanone is:
( A cdot 321 K )
в. з29 к
( c . ) ззо ( k )
D. 340 K
12
55 Yield of each step as actually carried out in laboratory is given above each arrow. What is overall yield of the
reaction?
A . 60%
в. 21%
c. ( 40 % )
D. 68%
12
56 Which of the following will not given butanoic acid as one of the product?
( mathbf{A} cdot C H_{3} C H_{2} C H_{2} B r frac{M g}{E t h e r} quad underbrace{(i) C O_{2}}_{(i i) H C l / H_{2}} )
B ( cdot C H_{3} C H_{2} C H_{2} B r stackrel{N a C N(a q)}{longrightarrow} stackrel{H^{+} / H_{2} O}{longrightarrow} )
c. ( _{C H_{3} C H_{2} C H O+H C N} stackrel{H^{+}+H_{2} mathcal{O}}{longrightarrow} )
D. ( C H_{3} C H_{2} C H_{2} C H=C H_{2 H^{+} / H_{2} O}^{K M n O_{4}} )
12
57 Identify the compounds which give
yellow precipitate with ( boldsymbol{I}_{2}+ ) NaOH
(a) Ethyl alcohol
(b) Acetone
(c) Propyl alcohol
(d) 2-propanol
(e) 3 – butanone
(f) Butanal
( A cdot c, e ) and ( f )
B. a, dand f
c. e, f and a
D. a, b and d
12
58 Which product is formed? 12
59 Which of the following is solid at room temperature?
A. Acetaldehyde
B. Paraldehyde
c. Metaldehdye
D. All of the above.
12
60 What is D? 12
61 What is Rosenmund’s reaction? What is
the purpose of adding ( B a S O_{4} ) in this
reaction?
12
62 Identify the relation between molecular mass and boiling point in aldehydes and ketones. 12
63 Which of the following compounds is the reactant in Rosenmund’s reaction?
A. ( C H_{3} C O O C H_{3} )
в. ( C H_{3} C H O )
c. ( C H_{3} C H_{2} C l )
D. ( C H_{3} C O C l )
12
64 ( boldsymbol{H}_{2} boldsymbol{O}^{18}+boldsymbol{N} boldsymbol{a} rightarrow underset{(b a s e)}{(boldsymbol{A})}+(boldsymbol{B}) )
( o )
( boldsymbol{C H}-mathbf{3}-stackrel{|}{boldsymbol{C}}-boldsymbol{O}-boldsymbol{C} boldsymbol{H}_{2}-boldsymbol{C} boldsymbol{H}_{3}+ )
( (A) rightarrow(C)+(D) ) alcohol
Product ( (C) ) of the reaction is:
( ^{mathbf{A}} cdot_{C H_{3}-C-_{18}^{|}}^{0}-H )
в. ( quad stackrel{o^{prime 8}}{N}-O-H )
[
C H_{3}-C-O-H
]
D.
[
C H_{3}-C-O^{ominus} N_{a}^{oplus}
]
12
65 One girl student uses the liquid compound to remove nail paint from her nail. The liquid compound removes the nail paint from her nail. Give the name of this compound.
A . Acetic acid
B. Formalin
c. Ethanol
D. Propanone
12
66 ( d )
0
( d )
( d )
12
67 Arrange the following in decreasing order of acidic strength.
I. Benzoic acid
II. 4 -nitrobenzoic acid
III. 3,4 -dinitrobenzoic acid
IV. 4-methoxy benzoic acid
( A cdot|||>||>|>mid V )
B. |||>|| > IV > |
c. ( |>| backslash>mid v>1 )
D. |> || > || > IV
12
68 Which of the following reactions will not resulting the formation of carbon-
carbon bonds?
A. Reimer-Tieman reaction
B. Cannizaro reaction
c. Wurtz reaction
D. Friedel-Crafts acylation
12
69 Which is not a reversible reaction?
A. Base-promoted ester hydrolysis
B. Claisen condensation
c. Acid catalyst ester hydrolysis
D. Acetal formation
12
70 The conversion of acid chlorides into
aldehydes by reduction is termed
A. Clemenson’s reduction
B. Wolf-Kishner reaction
c. Rosenmund reduction
D. McMurry reaction
12
71 Which of the following reagents convert the acid chloride into aldehyde? ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{C O}-boldsymbol{C l} rightarrow )
( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{C H O} )
A. ( H_{2}, P d, B a S O_{4} )
B . ( left(C H_{3}-C H_{2}-C H_{2}-C H_{2}right)_{3} ) SnH
c. LiAlH( _{4} )
D. Nah
12
72 1-phenylethyne gives ( C_{6} H_{5} C H_{2} C H O ) as a product on hydroboration-oxidation reaction.
Enter 1 if true else 0
12
73 The organic compouds ( A ) and ( B ) react
with sodium metal and release ( boldsymbol{H}_{2} ) gas.
A and B react with each other to given ethyl acetate. Then ( A ) and ( B ) are
A. ( C H_{3} ) COOHand ( C_{2} H_{5} ) OH
в. ( H C O O H a n d C_{2} H_{5} O H )
c. ( C H_{3} ) COOHand ( C H_{3} ) OH
D. ( C H_{3} ) СООНапдНСООН
12
74 Write the IUPAC names of the following ketone. If possible, give the common name(s) also.
PhCOPh
12
75 In Rosenmund reactions, presence of
( B a S O_{4} ) acts as for Pd.
A. promoter
B. moderator
c. inhibitor
D. poison
12
76 Which ( beta-k e t o ) acid shown will not
undergo decarboxylation?
( A )
B.
( c )
D.
12
77 Product ( (A) ) is:
Снз ( -c equiv c- ) сн ( _{3} ) Соыа КМпо ( _{4}(t) )
( mathbf{C H}_{3}-mathbf{C H}_{2}-mathbf{U}-mathbf{C}-mathbf{H} )
( mathbf{C H}_{3}-mathbf{U}-| )
( mathbf{O H} mathbf{~ O H} )
( mathbf{C H}_{3}-mathbf{C H}-mathbf{C H}-mathbf{C H}_{3} )
( o=C H-C H )
( h )
12
78 Convert the above compound and note
that ( K M n O_{4} ) can cause cleavage of the
ring in the presence of the activating
OH) group.
12
79 Which of the following is/are true
statement(s)?
A. Aldehdyes and ketones are polar compounds
B. Many naturally occuring aldehydes and ketones have been used in blending of perfumes and flavouring agents.
C. The ketones are good solvents.
D. All of the above.
12
80 Aldehydes other than formaldehyde react with Grignard’s reagent to give addition products which on hydrolysis give:
A. tertiary alcohols
B. secondary alcohols
c. primary alcohols
D. carboxylic acids
12
81 The general formula of carboxylic acids
is:
A ( . C_{n} H_{n} ) СООН
B. ( C_{n} H_{2 n-1} )
c. ( C_{n} H_{2 n-2} ) COOH
D. ( C_{n} H_{2 n+1} C O O H )
12
82 Decreasing order of rate of electrophilic aromatic substitution is:
A ( . a>b>c>d )
в. ( a>c>b>d )
c. ( b>a>c>d )
D. ( b>c>a>d )
12
83 What happens when acetic acid is
treated with carbonate salt? Name the
gas produced. What happens when this gas is treated with lime water? Support
your answer with equations
12
84 ( boldsymbol{C H}_{3}-boldsymbol{C O O H}+boldsymbol{X} rightarrow ) Fruity
smell compound. Then, X is :
A. aldehyde
B. chloroform
c. alcohol
D. base
12
85 What is the name of the above reaction?
A. Williamson’s synthesis
B. Gatterman-Koch process
c. Etard reaction
D. Hoffmann elimination reaction
12
86 In a set of the given reactions, acetic acid yields a product ( C . ) Product ( C ) would be:
( boldsymbol{C H}_{3} boldsymbol{C O O H}+boldsymbol{P C l}_{5} rightarrow )
( boldsymbol{A} frac{C_{6} boldsymbol{H}_{6}}{text {Anhy.AlCl}_{3}} boldsymbol{B} frac{C_{2} boldsymbol{H}_{5} M boldsymbol{g} boldsymbol{B r} / text {ether}}{(i i) boldsymbol{H}^{+}} boldsymbol{C} )
A ( cdot C H_{3} C H(O H) C_{2} H_{5} )
в. ( C H_{3} C O C_{6} H_{5} )
c. ( C H_{3} C H(O H) C_{6} H_{5} )
D. ( quad c_{2} ), и( _{5} )
[
C H_{3}-C-(O H) C_{6} H_{5}
]
12
87 Consider the above sequence and
answer the following
[
text { Conversion } boldsymbol{R}-boldsymbol{C H} boldsymbol{O} rightarrow boldsymbol{R}-boldsymbol{C O}_{2} boldsymbol{H}
]
can be done by :
( mathbf{A} cdot K M N O_{4} )
( mathbf{B} cdot H_{2} C r O_{4} )
( mathbf{c} cdot K_{2} C r_{2} O_{7} )
D. All of these
12
88 In the reaction sequence:
( boldsymbol{C H}_{3}-boldsymbol{C} equiv boldsymbol{C}-boldsymbol{H} frac{boldsymbol{C H}_{3} M boldsymbol{g} boldsymbol{B r}}{longrightarrow} boldsymbol{C H}_{4}+ )
( (boldsymbol{A}) frac{(i) C O_{2}}{(i i) H_{2} O / H^{oplus}}(B) )
(B) will be :
A ( cdot C H_{3}-C equiv C-C H_{3} )
B . ( C H_{3}-C equiv C-M g B r )
c. ( C H_{3}-C equiv C- ) COOH
D. ( C H_{3}-C H equiv C H-C O O H )
12
89 Which of the following hydrocarbon acids will be a constituent of the
highest melting point?
( A )
B.
( c )
( D )
12
90 Match the following and write the order
for ABCD.
List List – II
1) Conc
A) Decarboxylating agent
[
H_{2} S O_{4} / 170^{0} C
]
B) Dehydrohalogenating
2) ( mathrm{NaOH}+mathrm{CaO} )
agent
C) Dehalogenating agent
3) ( Z n ) dust
D) Dehydrating agent
4) aq ( K O H )
5) alcoholic ( K O H )
A . 1234
B. 2 4 31
( c cdot 2531 )
D. 1534
12
91 Which of the regents will convert a nitrile to corresponding aldehyde?
A ( cdotleft(text { i) } L i A l H_{4} text { (ii) } H_{3} O^{+}right. )
B . (i) ( D I B A L-H ) (ii) ( H_{3} O^{+} )
c. ( N a O H, H_{2} O, ) Heat
D. ( N a B H_{4} )
12
92 State the IUPAC names of the following compounds:
(i) ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}-boldsymbol{O H} )
(ii) ( boldsymbol{H} boldsymbol{C} boldsymbol{O} boldsymbol{O} boldsymbol{H} )
(iii) ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}=boldsymbol{C H}_{2} )
12
93 Which order is coorect about auidity?
( mathbf{A} cdot C H_{3} C O O H>C_{6} H_{5} C O O H>C_{6} H_{5} O H )
B ( cdot C_{6} H_{5} C O O H>C H_{3} C O O H>C_{6} H_{5} O H )
( mathbf{c} cdot C_{6} H_{5} O H>C_{6} H_{5} C O O H>C H_{3} C O O H )
( mathbf{D} cdot C_{6} H_{5} O H>C H_{3} C O O H>C_{6} H_{5} C O O H )
12
94 Which of the following IUPAC names is
not correctly matched?
( A )

B . ( left(C H_{3}right)_{2} C=C H C O O H: 3 ) – Methylbut- 2 -enoic acid
c. ( P h C H_{2} C H_{2} C O O H: ) 3-Phenylpropanoic acid
( D )
Trinitr
12
95 78. Which ester on pyrolysis gives isobutylene?
(a) CH3-CH2-CH2-O-C-CH3
(b) CH,COOCH,CH,CH,
(C) CH,COOCH, -CH(CH3)2
(d) All the above
12
96 Formalin is the commercial name of :
A. formic acid
B. fluoroform
c. ( 40 % ) aqueous solution of methanal
D. paraformaldehyde
12
97 Oxalic acid is found in:
A. spinach
B. amla
c. grapes
D. unripe mangoes
12
98 Sodium phenoxide when heated with
( C O_{2} ) under pressure at ( 125^{0} C )
gives
A. Salol
B. Salicylaldehyde
c. Sodium benzoate
D. Sodium salcylate
12
99 Which of the following compounds gives
acetone ( left(C H_{3}right)_{2} C=o ) as one of the
product of its ozonolysis?
( A )
B.
( c )
( D )
12
100 Which of the following names is correct
for ( boldsymbol{C H}_{2}-boldsymbol{C H}-boldsymbol{C H}_{2} ? )
begin{tabular}{lll}
CHO & CHO & CHO \
hline
end{tabular}
A. 3- Formaldehyde-1,3-dial
B. 1,2,3- Triformaylpropane
c. 2-Formylmethylbutane-1,4-dial
D. Propane-1,2,3-tricarbaldehyde
12
101 Reaction by which Benzaldehyde cannot
be prepared is:
( mathbf{A} )
in ( mathrm{CS}_{2} ) followed by ( mathrm{H}_{3} mathrm{O}^{-} )
( B )
in presence of Pd-BaSO
( mathbf{C} )
presence of anhydrous AlCl
D.
and conc. HCl
12
102 An electrophilic reagent must have?
A. A vacant orbital
B. An orbital containing one electron
C. An orbital containing two electron
D. All completely filled atomic orbitals
12
103 CH2CHO_) CH3MgBr
0.9 Compounds A and C in the following reaction are ……..
Hydroboration oxidation
(ii) H2O
(a) identical
(b) positional isomers
(c) functional isomers
(d) optical isomers
Zobanata
12
104 Carbonyl group is converted into
methylene group by?
A. Acidic reduction
B. Raney Ni
c. Basic hydrolysis
D. Normal Hydrogenation
12
105 Write the IUPAC name of the following compound:
( o )
( boldsymbol{C H}_{2}=boldsymbol{C H}-stackrel{|}{boldsymbol{C}}-boldsymbol{C} boldsymbol{H}_{3} )
12
106 Q Type your question
pill
the Compound (H) is:
4
B.
( c )
( D )
12
107 The products of (A) on ozonolysis
followed by oxidation with ( boldsymbol{H}_{2} boldsymbol{O}_{2} ) are :
( A )
B.
( c )
( D )
12
108 ( frac{a-x}{a} )
( a )
12
109 Correct IUPAC name of the given
compound is
A. Anthranilic acid
B. 2-carboxylbenzamine
c. 2-Aminobenzoic acid
D. 2-Aminocarboxylic acid
12
110 Which of the following chemical is used in removing ink stain from clothes?
A. Ethyl alcohol
B. Glycol
c. Banzoic acid
D. Oxalic acid
12
111 What is the value of ( X ) and ( Y ? ) Report
your answer as ( (X Y) )
12
112 Acetic acid is present in vinegar. Curd contains
A . lactic acid
B. tartaric acid
c. picric acid
D. None of the above
12
113 Draw structures of the following
derivatives.
(i) The 2,4 -dinitrophenylhydrazone of benzaldehyde
(ii) Cyclopropanone oxime
(iii) Acetaldehydedimethylacetal
(iv) The semicarbazone of
cyclobutanone
(v) The ethylene ketal of hexan-3-one
(vi) The methyl hemiacetal of formaldehyde
12
114 What are the functional groups present in the given compound?
A. Ester and ether
B. Ester and amine
c. Ester and carboxylic acid
D. Ether and carboxylic acid
E. Ether and ketone
12
115 By which reaction ketal is formed?
A. Glycol with acetone
B. Hydration of glycol
c. condensation of glycol
D. Glycol with acetaldehyde
12
116 ord sto ob ort 12
117 The compound ( (X) ) is:
( mathbf{A} cdot P h C O O N a )
B.
( mathbf{c} )
D. ( P h-C H=C H-P h )
12
118 Identify the organic compound:
HOOC ( -left(boldsymbol{C H}_{2}right)_{2}-boldsymbol{C O O H} )
12
119 Benzoic acid does not undergo FriedelCrafts reaction due to ( – ) – of the
benzene ring by the – – – – – effect of -COOH
group.
A. Activation, electron donating
B. Activation, electron withdrawing
c. Deactivation, electron donating
D. Deactivation, electron withdrawing
12
120 formula ( left(C_{8} H_{10}right) .(A) ) is oxidized by a strong oxidizing agent to (B). (B) on dehydration and subsequent reaction with ammonia forms an imide, (C). (C) is then reacted with a strong inorganic
base to form a compound that undergoes Hoffman bromamide reaction to give (D). (D) is treated with sodium nitrite in an ice cold acidic
solution to form the product (E). (E) is a
steam volatile compound and on nitration gives two mononitro derivatives. (E) is treated with sodium
hydroxide to form the salt (F). On heating a solution of (F), bubble are
formed due to release of gas. This gas does not burn. On analysis it was found
that the gas has two components, one
lighter than air and one heavier than air.
Compound ( (B) ) is :
A. Phthalic acid
B. Isophthalic acid
c. Terephthalic acid
D. Benzoic acid
12
121 A and B are:
( mathrm{B} prec mathrm{NaBH}_{4}langlequad mathrm{CH}=mathrm{CH}-mathrm{CHO} stackrel{mathrm{H}_{2} / mathrm{Pt}}{longrightarrow} mathrm{A} )
( A )
( leftlangle-mathrm{cH}_{2} mathrm{CH}_{2} mathrm{cHo},langlequadrangle_{mathrm{CH}}=mathrm{cH}-mathrm{cH}_{2} mathrm{OH}right. )
( c )
( leftlanglemathrm{CH}=mathrm{CH}-mathrm{CH}_{2} mathrm{OH} ) in both cas right.
( D )
( leftlanglemathrm{CH}_{2} mathrm{CH}_{2} mathrm{CH}_{2} mathrm{OH} ) in both cases right.
12
122 210. Find incorrect product in following reactions.
(a) Ph=C=CH HBr → PhầC=CH,
Br
HBr
(b) Ph-C=CH ABEL> Ph-C=CHB
pero
Br
(1)BHZ.THF
(C) CH3CH2C=CH –
(2)BH COOD
CH3CH,
(1)BD, THF
(d) CH2CH2C=CH (2)CH,COOH
CH3CH,
H
C=C
DH
12
123 When o-xylene is oxidised with alkaline
( K M n O_{4}, ) the product is
A. Terephthalic acid
B. Phthalic acid
c. Benzoic acid
D. Salicylic acid
12
124 ( boldsymbol{C H}_{3}-boldsymbol{C H}=boldsymbol{C}left(boldsymbol{C H}_{3}right)_{2} frac{boldsymbol{O}_{3}}{left(boldsymbol{C H}_{3}right)_{2} boldsymbol{S}} ? )
Products obtained at the end of the
reaction when given compound is subjected to ozonolysis are:
A. acetaldehyde
B. propanaldehyde
c. acetone, acetaldehyde
D. acetone, formaldehyde
12
125 79. Electrochemical oxidation of the succinate ion
(1, 4-butanediate ion) into ethylene proceeds through
the formation of the intermediate
(a) CH, CH2-C0
(C) CH2 – CH;
(6) o-C-CH2-CH, CO
(d) CH2 = CH®
12
126 General formula of saturated
monocarboxylic acid is :
A. ( C_{n} H_{2 n+1} ) COOH
в. ( C_{n} H_{2 n} O_{2} )
c. Both A and B
D. None of the above
12
127 Acetone can not be obtained from:
A. hydrolysis of isopropylidene chloride
B. hydration of propyne
C. dehydrogenation of isopropyl alcohol
D. hydrolysis of ester
12
128 ( x )
( c )
( = )
12
129 Which is the correct method of
synthesising acetamide from acetone?
A ( cdot C H_{3} C O C H_{3} stackrel{P d / B a S O_{4}}{longrightarrow} C H_{3} C H O stackrel{N H_{3}}{longrightarrow} )
( C H_{3} C H_{2} N H_{2} stackrel{H_{2} O}{longrightarrow} C H_{3} C O N H_{2} )
в. ( C H_{3} C O C H_{3} frac{I_{2}}{N a O H} C H_{3} C O O N a frac{H^{+}}{N H_{3}} )
( C H_{3} C O O N H_{4} stackrel{Delta}{longrightarrow} C H_{3} C O N H_{2} )
c. ( C H_{3} C O C H_{3} stackrel{C r O_{3}}{longrightarrow} C H_{3} C O O H stackrel{N H_{3}}{longrightarrow} C H_{3} C O N H_{2} )
D. ( C H_{3} C O C H_{3} frac{I_{2}}{_{N a O H}} C H_{3} C O O H stackrel{H C l}{longrightarrow} )
( C H_{3} C O C l stackrel{N H_{3}^{3}}{longrightarrow} C H_{3} C O N H_{2} )
12
130 (major) is :
( A )
в.
c.
D.
12
131 Compound ‘A’ on chlorination gives compound ‘B’, compound ‘B’ reacts with alc. KOH gives gas ‘C’, which decolourizes Baeyer’s reagent and ozonolysis of compound ‘C’ gives only HCHO compound. Then compound ‘A’ is:
A. ( C_{2} H_{6} )
в. ( C_{2} H_{4} )
c. ( C_{4} H_{10} )
D. ( C_{2} H_{5} C l )
12
132 What is the acidity order of the
following compounds?
( mathbf{A} cdot I>I I>I I I>I V>V )
( mathbf{B} cdot I I>I I I>I V>V>I )
( mathbf{c} cdot V>I I I>I>I I>I V )
D. ( V>I I I>I I>I>I V )
12
133 The smell of bitter almond is given by the compound:
A. benzoic acid
B. benzaldehyde
c. vanilin
D. cinnamaldehyde
12
134 When acetaldehyde is reacted with LiAIH4 what is the product formed?
A. ( C H_{3} ) СООН
в. ( C H_{3} C H_{2} ) ОН
( mathbf{c} cdot C H_{3} O H )
D. нсоон
12
135 Draw the structure of the hexanal
molecule.
12
136 Acid catalysed hydrolysis of the cyclic
acetal gives:
A. ethanal and 2 -chlorocyclohexanol
B. ethanol and 2 -chlorocyclohexanol
C. 1,2 -ethanediol and 2 -chlorocychlohexanone
D. 1,2 -ethanediol and 2 -chlorocyclohexanol
12
137 The final product in the given reaction
is:
( A )
B
( c )
D. A and B both
12
138 The best method to purify impure
acetone is:
A. ( quad C H_{3} C O C H_{3}+H C l rightarrow C H_{3}-C_{I l}^{D H}-C H_{3} stackrel{h e a t}{longrightarrow} )
( C H_{3} C O C H_{3} )
B. ( quad C H_{3} C O C H_{3}+N a H S O_{3} rightarrow C H_{3}-C_{I}^{D H}- )
( S O_{3} N a stackrel{N a_{2} C O_{3}}{longrightarrow} C H_{3} C O C H_{3} )
( mathrm{c} )
( C H_{3} C O C H_{3} )
D.
[
C H_{3} C O C H_{3}+H_{2} S O_{4} rightarrow C H_{3}-quad C_{1}^{prime} C_{3}-C H_{3} stackrel{text { Heat}}{longrightarrow}
]
( C H_{3} C O C H_{3} )
12
139 Write the IUPAC name of the compound:
[
begin{array}{cc}
boldsymbol{C H}_{3}-boldsymbol{C H}-boldsymbol{C H}_{2}-boldsymbol{C}-boldsymbol{C H}_{3} \
mid & | \
boldsymbol{O H} & boldsymbol{O}
end{array}
]
12
140 With in each set, select the compound which is more reactive to nucleophilic addition at carbonyl carbon.
( (I) C H_{3} C O C H_{2} C H_{2} B r ) or ( C H_{3} C O C )
( (boldsymbol{I I}) boldsymbol{C H}_{3} boldsymbol{C H O} ) or ( boldsymbol{C H}_{3} boldsymbol{C O C H}_{3} )
( (I I I) C H_{3} C O C H_{3} ) or ( C H_{3} C O C F_{3} )
( (I V) P h C H O ) or ( C H_{3} C H O )
12
141 Which of the following reactions is called Rosenmund reaction?
A. Aldehydes are reduced to alcohols
B. Acids are converted to acid chlorides
c. Alcohols are reduced to hydrocarbons
D. Acid chloride are reduced to aldehydes
12
142 Assertion
( A beta ) keto acid is decarboxylated to a ketone on simple heating, even in absence of sodalime catalyst.
Reason
A resonance stabilized carbonion is
formed
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
143 Quinaine is obtained from-
A. Bark
B. Fruit
c. Leaves
D. Roots
12
144 The compounds ( (A) ) and ( (B) ) in the
equation given above are:
( mathbf{A} cdot C H_{3} C O O H quad C H_{3} C H_{3} )
B. ( D C H_{2}-C O O D quad C H_{4} )
( mathbf{c} cdot D C H_{2}-C O O H quad C H_{2} D_{2} )
( mathbf{D} cdot C h_{3}-C O O D quad C H_{3} D )
12
145 A carbonyl compound on reaction with
ilute ( N a O H ) gives 2 -ethyl-3 hydroxyhexanal. The carbonyl compound is :
A. propanal
B. propanone
c. butanal
D. butanone
12
146 2,4 DNP reacts with carbonyls (aldehyde/ketones) to give yellow ppt. This reaction is dehydration type
reaction as shown above.

A mixture of benzaldehyde and formaldehyde is heated with 2,4 DNP.
How many organic products will be
obtained after fractional distillation?

12
147 Which of the following statements
is/are correct?
This question has multiple correct options
( mathbf{A} cdot ) The common name of ( left(H O O C-C H_{2}-C O O Hright) ) is
malonic acid
B. The common name of is succinic acid is butanedioic acid
C. The IUPAC name of ( left(C H_{2}=C H-O C O C H_{3}right) ) is vinyl
acetate
D. The IUPAC name of acrylonitrile is pror-2-enenitrile.
12
148 The weakest acid among the following
is
A. ( C H_{3} ) СООН
в. ( C H_{3} C H_{2} C O O H )
c. ( left(C H_{3}right)_{2} ) СНСООН
D. ( left(C H_{3}right)_{3} C C O O H )
12
149 Which of the followings is a tricarboxylic acid?
A . Citric acid
B. Malonic acid
c. succinic acid
D. Malic acid
12
150 Give chemical equations for Etard reaction. 12
151 Which of the following order of acidic
strength is correct:
( mathbf{A} cdot R C O O H>R O H>H O H>H C equiv C H )
B . ( R C O O H>H O H>R O H>H C equiv C H )
c. ( R C O O H>H O H>H C equiv C H>R O H )
D . ( R C O O H>H C equiv C H>H O H>R O H )
12
152 The compound (C) is:
(D) ( quad(mathrm{C})+mathrm{CO}_{2} )
[
begin{array}{ll}
left(mathrm{C}_{4} mathrm{H}_{6} mathrm{O}_{2}right) & left(mathrm{C}_{3} mathrm{H}_{6} mathrm{O}right) \
text { Acid } &
end{array}
]
( A )
B.
( c )
D.
12
153 In order to extract isobutyric acid from a solution of diethyl ether, one should wash the solution with:
A. one ( 30 m L ) wash of water
B. three ( 10 m L ) washes of water
c. one ( 30 m L ) wash of hexane
D. three ( 10 m L ) washes of hexane
12
154 Amongst the following carboxylic acids, the strongest acid is (for first dissociation of dicarboxylic acid):
( A )
в.
c. ( C H_{3} C H_{2} C O O H )
D. ( C H_{3} ) COOH
12
155 ( frac{j}{d} ) 12
156 Acids have much higher boiling points than isomeric esters because:
A. Acids form dimers by H-Bonding
B. Acids are volatile in steam
c. Ester are non-volatile
D. Acids can ionise to give protons in aqueous solution
12
157 In the formation of compound (E) from
(A), the name of the reaction is:
A. Elbs persulphate oxidation
B. Mannich reaction
c. Dakin’s reaction
D. Oppenauer oxidation
12
158 Which of the following doesn’t use acetaldehyde as a starting material in its preparation?
A. Ethyl acetate
B. Ethanoic acid
c. Methanoic acid
D. Drugs
12
159 Corrosive sublimate ( left(H g C l_{2}right) ) can be
used to distinguish between:
A. formaldehyde and propanone
B. formic acid and acetic acid
c. acetaldehyde and butanone
D. all of the above
12
160 Aldehydes on oxidation gives
A. Alcohol
B. Acid
c. Ketone
D. Ether
12
161 Which of the following acid does not have – COOH group?
A . Picric acid
B. Ethanoic acid
c. Benzoic acid
D. Salicylic acid
12
162 Write the structure of 2-hydroxybenzoic acid. 12
163 Conversion of esters to aldehydes can be accomplished by:
A. Stephen reduction
B. Rosenmund reduction
c. Reduction with lithium aluminium hydride
D. Reduction with diisobutyl aluminium hydride
12
164 One mole of an organic compound requires 0.5 moles of oxygen to produce a carboxylic acid. The compound may
be:
A. alcohol
B. ether
c. ketone
D. aldehyde
12
165 The molecular weight of acetone is ( mathrm{M} ) The molecular weight of diacetone alcohol is:
A.
B. M/2
( c . ) २м
D. 3M
12
166 The reagent that gives an acid chloride on treatment with a carboxylic acid is?
This question has multiple correct options
A ( cdot P C l_{5} )
в. ( P C l_{3} )
c. ( operatorname{socl}_{2} )
D. ( (C O C l)_{2} )
12
167 a) Define “Esterification”
b) Write any three uses of ethanol
12
168 Draw the structural formula of Ethanoic
acid.
12
169 The carboxylic acid includes the functional group:
A. carboxyl and amine group
B. carboxyl and amide group
c. carboxyl and hydroxyl group
D. carboxyl and amine functional group
12
170 Draw the structure of butanone
molecule.
12
171 How will you convert Toluene to Benzaldehyde? 12
172 4- pentenoic acid when treated with ( I_{2} )
and ( N a H C O_{3} ) gives:
A. 4,5 -diiodopentanoic acid
B. 5 – idomethyl – dihydrofuran -2-one
c. 5-iodo tetrahydropyran-2-one
D. 4-pentenolyiodide
12
173 lonic species are stabilised by the dispersal of charge, which of the following carboxylate ions is the most positive charge?
A. O
( C H_{3}-C-bar{O} )
в. ( C l-C H_{2}-C-bar{O} )
c. O
( F-C H_{2}-C-bar{O} )
D. ( F-C H_{2}-C-bar{O} )
( _{mathrm{F}} )
12
174 Which among the following is most reactive to give nucleophilic addition?
A. ( F C H_{2} C H O )
в. ( C l C H_{2} C H O )
( mathrm{c} cdot B r C H_{2} C H O )
D. ( I C H_{2} C H O )
12
175 Malonic acid and succinic acid are
distinguish by:
A. heating
в. ( operatorname{NaH} mathrm{CO}_{3} )
c. both ( A ) and ( B )
D. None of these
12
176 Acetic acid is a
volatile acid than ( boldsymbol{H}_{2} boldsymbol{C O}_{3} )
A. less
B. more
c. equally
D. can’t say
12
177 Butyraldehyde are produced commercially by:
A. hydroformylation
B. hydroacetylation
c. formylation
D. acetylation
12
178 Which of the following reactions is/are not correct to get cinnamic acid?
A ( cdot C_{6} H_{5} C H O frac{ }{left(C H_{3} C Oright)_{2} O / C H_{3} C O O N a} )
B. ( C_{6} H_{5} C H O frac{1) C H_{2}left(C O O C_{2} H_{2}right)_{2}, p y r i text { dine }}{2 / H_{3} O+, Delta} )
c. ( C_{6} H_{5} ) СНО ( stackrel{text {СНз} text {сно} / text {ОН}}{text { – }} )
D. ( C_{6} H_{5} C H O frac{1) B r C H_{2} C O O C_{2} H_{3} / Z n I Delta}{2) H_{2} O / H+/ Delta} )
12
179 The major product in the following reaction is:
( mathbf{A} )
B.
c.
D.
12
180 The given reaction is called:
[
mathbf{R}-mathbf{C}^{-} mathbf{R} frac{mathbf{N}_{3} mathbf{H}}{mathbf{U}}-mathbf{R} mathbf{C O N H R}+mathbf{N}_{mathbf{2} mathbf{S O}_{mathbf{4}}}^{mathbf{J}}
]
A. Claisen-Schmidt reaction
B. Kolbe-Schmidt reaction
C. Schmidt reaction
D. Kolbe’s reaction
12
181 The product ( (B): )
( A )
B.
( c )
D.
12
182 Compound ‘P’ of the following reaction sequence can be :
( langle 0rangle-c equiv c-sqrt{0} )
B.
( langle Orangle-mathrm{cH}_{2}-mathrm{c} equiv mathrm{CH} )
( c )
( langle Orangle-c equiv c H )
( D )
( langle Orangle-c=c H_{2} )
12
183 Compound which is used for separation
of acetone and acetophenone:
A. Sodium bisulphite.
B. Girgnard reagent.
c. Sodium sulphate
D. Ammonium chloride
12
184 0
0
0
0
12
185 prefix for side chain attached to the
parent chain lring is correct?
( A )
Prefix: Ethanoyloxy
B.
Prefix: Methoxycarbony
( c )
Prefix: cyano
( D )
Prefix: Carbamoy
12
186 Name the following compound according to the IUPAC system or nomenclature:
( boldsymbol{C H}_{3} boldsymbol{C H}left(boldsymbol{C H}_{3}right) boldsymbol{C H}_{2} boldsymbol{C}left(boldsymbol{C H}_{3}right)_{2} boldsymbol{C O C H}_{3} )
12
187 ( frac{8}{8} ) 12
188 How many alkyne/ alkynes gives following ketone as the only product on hydrolysis by sulphuric acid, water and
( boldsymbol{H} boldsymbol{g} boldsymbol{S} boldsymbol{O}_{4} ? )
4
B. 2
( c )
( D )
12
189 The major product obtained on
interaction of phenol with sodium hydroxide and carbon dioxide is :
A. Benzoic acid
B. Salicylaldehyde
c. Salicylic acid
D. Phthalic acid
12
190 mich of the following decarboxylation reaction and
their product is/are incorrectly matched?
COOH
NaOH/CaO
НООС
-COOH
COOH
COOH
12
191 Which of the following is/are responsible for the higher boiling points of aldehydes and ketones compared to
ethers and hydrocarbons of comparable molecular mass?
A. Intermolecular dipole-dipole interactions between opposite ends of ( C=O ) dipoles
B. Intermolecular hydrogen bonds
c. Dipole induced dipole interactions.
D. All of these
12
192 Question 23. What is the difference between saccharin and saccharic
acid?
CO
COOH
12
193 The reduction of benzoyl chloride with
( P d ) and ( B a S O_{4} / C a S O_{3} ) produces :
A. benzyl chloride
B. benzoic acid
c. benzaldehyde
D. All of the above
12
194 Cynohydrin of which of the following compound can give lactic acid
A. ( H C H O )
в. ( C H_{3} C O C H_{3} )
c. ( C H_{3} C H O )
D. ( C H_{3} C H_{2} C H O )
12
195 Which of the following represents the
correct order of the acidity in the given
compound?
( mathbf{A} cdot C l C H_{2} C O O H<B r C H_{2} C O O H<C H_{3} C O O H< )
( F C H_{2} C O O H )
B. ( C H_{3} C O O H<B r C H_{2} C O O H<C l C H_{2} C O O H< )
( F C H 2 C O O H )
( mathrm{c} cdot F C H_{2} C O O H<C l C H_{2} C O O H<B r C H_{2} C O O H< )
( C H_{3} C O O H )
D. ( C H_{3} C O O H<F C H_{2} C O O H<C l C H_{2} C O O H< )
( B r C H_{2} C O O H )
12
196 The product as a result of reaction of
( boldsymbol{C H}_{3} boldsymbol{M g I} ) with ( boldsymbol{C O}_{2} ) on further
hydrolysis gives:
A ( cdot C H_{3} C O O H )
в. ( H C O O H )
( mathbf{c} cdot C H_{3} O H )
D. ( C O O H-C O O H )
12
197 Complete the reactions with
appropriate products.
(i) ( C H_{3} C H O+N H_{2} O H rightarrow X )
(ii) ( boldsymbol{C H}_{2}=boldsymbol{C H}_{2}+boldsymbol{P d C l}_{2}+ )
( boldsymbol{H}_{2} boldsymbol{O} stackrel{boldsymbol{C u C l}_{2}}{longrightarrow} boldsymbol{Y} )
(iii) ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{O H} frac{C r boldsymbol{O}_{3}-boldsymbol{H}_{2} boldsymbol{S O}_{4}}{boldsymbol{lambda}} boldsymbol{Z} )
A. ( X=C H_{3} C H=N O H, Y=C H_{3} C H O, Z= )
( C H_{3} C H_{2} C H_{2} C O O H )
B. ( X=C H_{3} C H_{2} N H_{2}, Y=C H_{3} C H_{2} C H O, Z= )
( C H_{3} C H_{2} C H_{2} C O O H )
c. ( X=C H_{3} C O N H_{2}, Y=H C H O, Z=C H_{3} C O C H_{3} )
12
198 In which of the following reactions new carbon-carbon bond is not formed?
A. Cannizzaro reaction
B. Wurtz reaction
c. Aldol condensation
D. Friedel-Crafts reaction
12
199 Write the IUPAC name of the following:
( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}=boldsymbol{C H}-stackrel{mathbb{1}}{boldsymbol{C}}-boldsymbol{H} )
12
200 Draw the structure of the following compound:
3-Bromo-4-phenylpentanoic acid
12
201 ( C r_{2} O_{3} )
( C_{7} H_{16} frac{F e_{2} O_{3}}{773 K} A frac{K M n O_{4} / H^{oplus}}{ } B )
10 atm
Then what is the incorrect statement?
A. ( B ) will give effervescence with ( N a H C O_{3} )
B. ( A ) has degree of unsaturation equal to 4
c. ( B ) with slaked lime gives a symmetrical ketone
D. None of these
12
202 The IUPAC name of the compound is:
A. 3 -keto- 2 -methylhex- 5 -en-al
B. 3-keto-2-methylhex-4-en-al
C. 5 -formylhex- 2 -en-3-one
D. 5-methyl-4-oxohex-2-en-5-al
12
203 The correct IUPAC name of the
compound ( boldsymbol{H} boldsymbol{O O C}-boldsymbol{C H}_{2}-boldsymbol{C H}_{2}- )
COOH is:
A. Butanedioic acid
B. Ethane-1,2-dicarboxylic acid
c. succinic acid
D. 1,2-Ethane dioic acid
12
204 Which of the following cannot be used as reagent (B) ?
A ( cdot C H_{3} O ominus ) at high temperature
B. ( C_{2} H_{5} O^{ominus} ) at high temperature
( c )
at high temperature
D. ( C s O H+C_{2} H_{5} O H )
12
205 Question 5. Compound ‘A’ was prepared by oxidation of compound ‘B’
with alkaline KMnO. Compound ‘A’ on reduction with lithium
aluminium hydride gets converted back to compound ‘B’. When
compound ‘A’ is heated with compound B in the presence of H2SO4, it
produces fruity smell of compound C to which family the compounds ‘A’,
‘B’ and ‘C” belong top
12
206 Structure containing a ketone group is:
A ( cdot C H_{3}-C H_{2}-C H_{3} )
в. ( C H_{3}-C-O H )

О
c. ( C H_{3}-O-C_{3} H_{7} )
D. ( C H_{3}-C-C H_{3} )
I
O
E ( cdot C H_{3}-C H_{2}-N H_{2} )
12
207 ( boldsymbol{R}^{prime} ) is :
A. sulphanilamide
B. ( p ) -bromo sulphanilamide
c. ( o ) -bromo sulphanilic acid
D. sulphanilic acid
12
208 ( 0 % )
000
( sigma_{i}^{i-alpha} )
( @^{i 0} )
12
209 Nucleophilic addition reaction will be
most favoured in:
A ( cdot C H_{3}-C H_{2}-C H_{2} C-C H_{3} )
В ( cdotleft(C H_{3}right)_{2} C=O )
c. ( C H_{3} C H_{2} C H O )
D. ( C H_{3} C H O )
12
210 An aldehyde as well as a ketone can be represented by the same molecular
formula, say ( C_{3} H_{6} O . ) Write their
structures and name them, State the
relation between the two in the
language of science.
12
211 The triglycerides of which of the following unsaturated fatty acids are not present in oils and fats?
A. Oleic acid
B. Linoleic acid
C. Linolenic acid
D. Maleic acid
12
212 Which among the following carbonyl compound is most polar?
B.
( c )
D.
12
213 The carbonyl carbon is:
A. electrophilic
B. nucleophilic
C . amphoteric
D. lewis base
12
214 What is the action of ammonia ( left[N H_{3}right. )
on benzoic acid? Write equation.
12
215 The ( p K_{a} ) values of four carboxylic acids
are given below. Identify the weakest carboxylic acid.
A . 4.89
B. 1.28
c. 4.76
D. 2.56
12
216 In cold region during winter freezes at room temperature itself and looks ice.
A. Palmitic acid
B. Linoleic acid
c. Oleic acid
D. Ethanoic acid
12
217 The IUPAC name of the following compound is ( 3-(text { trichloromethyl }) ) benzoic acid.
A. True
B. False
12
218 Q. 19 Why is there a large difference in the boiling points of butanal and
butan-1-ol?
LI
12
219 Acid chlorides can be changed to
aldehydes by reaction with:
( mathbf{A} cdot L i A l H_{4} )
B. ( N a B H_{4} )
C . Hydrogen and palladised ( B a S O_{4} )
D. zinc amalgam and conc. ( H C l )
12
220 Assertion
Reduciton potential value of ( left(boldsymbol{E}^{circ}right) ) of ( mathbf{0} )
benzoquine (I) is greater than pbezoquinone (II)
Reason
Two adjacent (C=0) groups in (I)
destablise (I) relative to (II).
o-benzoquinone p-benzoquinone
( (mathrm{I}) )
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
221 What are the suitable reagent for
following conversion
( mathbf{A} cdot B r_{2} / F e B r_{3}, K M n O_{4}, H N O_{3} / H_{2} S O_{4} )
B. ( K M n O_{4}, B r_{2} / F e B r_{3}, H N O_{3} )
( mathbf{c} cdot H N O_{3}, B r_{2} / F e B r_{3}, K M n O_{4} )
D. ( H N O_{3}, K M n O_{4}, B r_{2} / F e B r_{3} )
12
222 Olefin, which gives ( C H_{3} C H O ) and
( C H_{3} C H_{2} C H O ) on ozonization and hydrolysis is :
A. 1butene
B. 2butene
c. 1pentene
D. 2pentene
12
223 -2
( infty )
( infty )
( infty )
00}
12
224 80
( g_{i} )
90
( 90^{circ} )
( int_{0}^{infty} )
12
225 Benzoyl chloride is prepared from benzoic acid by:
A. ( C l_{2} ) and ( h v )
в. ( S O_{2} C l_{2} )
c. ( operatorname{sOCl}_{2} )
D. ( C l_{2} ) and ( H_{2} O )
12
226 Q. 30 Arrange the following in decreasing order of their acidic strength. Give
explanation for the arrangement.
C6H5COOH, FCH,COOH, NO CH2COOH
12
227 toppr
Q Type your question
( A )
and
( B )
( c )
and
( D )
12
228 Q. 20 Write a test to differentiate between pentan-2-one and pentan-3-one. 12
229 How are the following conversions carried out?
( 2- ) methylbutan ( -1-01 ) into ( 2- )
methylbutanoic acid.
12
230 a) i) How do you convert benzoic acid to benzamide? Write the reaction.
ii) Complete the reaction : (please find above image)
b) What happens when carbony compounds are treated with hydrazine? Write the reaction.
12
231 Which carboxylic acid ( (B) ) (Equivalent
weight ( left.=52 g m e q^{-1}right) ) loses ( C O_{2}, ) which
on heating gives an acid ( (boldsymbol{C}) )
(Equivalent weight ( =mathbf{6 0} ) gm ( e q^{-1} ) )?
A ( cdot R=C H_{3} )
[
begin{array}{l}
C=C H_{3} C O O H \
N . E .(E w)=52 mathrm{gm} mathrm{eq}^{-1}
end{array}
]
В. ( R=C H_{3} )
[
C=C H_{3}-C H_{2}-C O O H
]
[
text { N.E. }(E w)=52 text { gm } e q^{-1}
]
( mathbf{c} cdot R=C H_{3} )
[
begin{array}{l}
C=C O O H \
N cdot E cdot(E w)=52 mathrm{gm} mathrm{eq}^{-1}
end{array}
]
D. None of these
12
232 The IUPAC name of ( N C-C H_{2}- )
( boldsymbol{C H}_{2}-boldsymbol{C O O H} ) is:
A. 3 – carboxy propanenitrile
B. 4- cyanobutanoic acid
c. 2 – cyanomethane Carboxylic acid
D. 3- cyanopropanoic acid
12
233 The reactant which is not used in
preparation of benzaldehyde in Etard method is:
This question has multiple correct options
A. toluene
B. ethylbenzene
c. benzoyl chloride
D. sodium benzoate
12
234 Zn(Hg)/HCI
Y to

In the above reaction, product (B) is
-OH
12
235 Write the IUPAC name of following
compound
12
236 ( x )
4
ser ( x^{2} )
and
12
237 of the following compounds will give butanone on oxidation with
alkaline KMnO solution?
(a) Butan-1-ol
(b) Butan-2-ol
(c) Both (a) and (b)
(d) None of these
ne (6) Rutes
12
238 Acetic acid is obtained when:
A. methyl alcohol is oxidised with potassium permanganate
B. calcium acetate is distilled in the presence of calcium formate
C . acetaldehyde is oxidised with potassium dichromate and sulphuric acid
D. glycerol is heated with sulphuric acid
12
239 Mention the hybridised state of carbonyl
carbon atom.
12
240 Chlorination of toulene in the presence
of light and heat followed by the treatment with aqueous ( N a O H ) gives:
A. o-cresol
B. p-Cresol
c. 2,4 -Dihydroxy toulene
D. Benzoic acid
12
241 Identify the products.
[
underset{mathrm{Me}}{longrightarrow} underbrace{Gamma=mathrm{O}+2 mathrm{Me}-equiv-mathrm{H} frac{mathrm{M}_{mathrm{CO}}}{_{mathrm{MCOH}}}^{+}}_{(mathrm{B})}(mathrm{C})
]
12
242 Write chemical equations for the following conversions:
(i) Nitrobenzene to benzoic acid.
(ii) Benzyl chloride to 2 phenylethanamine.
(iii) Aniline to benzyl alcohol.
12
243 Aspirin is known as:
A. Acetyl salicylic acid
B. Phenyl salicylate
C . Acetyl salicylate
D. Methyl salicylic acid
12
244 Question 6. Arrange the following in decreasing order of their acidic
strength. Give explanation for the arrangement. CH3COOH,
FCH2COOH, NO,CH,COOH
12
245 0.13 Which of the following compounds do not undergo aldol condensation:
05912 120
(a) CH–CHO
(b) ( )–CHO

(C) CH3–C–CH,
Siamois nodig om
CH₂ –
(d) CH, C-CHO
ONG
Сң,
OT
12
246 Which of the following is a true statement about aromatic aldehydes
and ketones?
A. They are insoluble in water
B. They are water soluble
c. They are insoluble in organic solvents.
D. None of these
12
247 Predict which of the following compounds will have a lower boiling point than 1-butanal
A. 1-butanol
B. 2-butanol
c. butanoic acid
D. 1-butene
12
248 The decreasing order of acidic character of the following is:
(I) EtOH (II) Me- ( mathrm{COOH} ) (III) ( M e O O C- )
( boldsymbol{C H}_{2}-boldsymbol{C O O M e}(mathrm{IV}) mathrm{MeCOMe} )
B. ( |>|>>1>1 v )
c. ।>IV> |||> ||
12
249 Compound (A) will be:
condensation
( mathbf{A} cdot P h-C equiv C-C equiv C-C H O )
B ( . P h-C equiv C-C H=C H-C H O )
( mathbf{c} cdot P h-C H=C H-C equiv C-C H O )
( mathbf{D} cdot P h-C H=C H-C=C H-C O_{2} H )
12
250 ( left.boldsymbol{R}-stackrel{boldsymbol{O}}{boldsymbol{C}}-boldsymbol{C l} frac{boldsymbol{N} boldsymbol{a} boldsymbol{N}_{3}}{boldsymbol{c o n c .} boldsymbol{H}_{2} boldsymbol{S O}_{4}}rightrangle_{boldsymbol{C H}_{3}-boldsymbol{C l}(mathbf{1} text { eqv } boldsymbol{t} .)} )
( boldsymbol{P} quad ) Hence, Product ( (boldsymbol{P}) ) is:
(Major product)
( mathbf{A} cdot R-N H_{2} )
( mathbf{B} cdot R-N H-C H_{3} )
C.
[
R-C-N H-C H_{3}
]
D.
[
R-N H-C-C H_{3}
]
12
251 Which of the following sequences is
correct?
( mathbf{A} cdot p K_{a}left(p-O_{2} N C_{6} H_{4} C O O Hright)>p K_{a} )
[
left(C_{6} H_{5} C O O Hright)>p K_{a}left(p-H O C_{6} H_{4} C O O Hright)
]
B ( cdot p K_{a}left(p-O_{2} N C_{6} H_{4} C O O Hright)<p K_{a} )
[
left(C_{6} H_{5} C O O Hright)

p K_{a} )
[
left(C_{6} H_{5} C O O Hright)<p K_{a}left(p-H O C_{6} H_{4} C O O Hright)
]
( mathbf{D} cdot p K_{a}left(p-O_{2} N C_{6} H_{4} C O O Hright)

p K_{a}left(p-H O C_{6} H_{4} C O O Hright)
]

12
252 The name of the compound is cyclohexylidene methanone.
A . True
B. False
12
253 Assertion
Hydrolysis of ethyl acetate in the
presence of acid is a reaction of first
order whereas in presence of alkali, it is
reaction of second order.
Reason
Acid only acts as a catalyst whereas
alkali acts as one of the reactants.
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
254 ( frac{d x}{d} )
( d_{j}^{d} )
12
255 Write the structural formulae for the
compounds that yield the following products on reductive ozonolysis:
penta-3-one + glyoxal + propanal
12
256 How do you bring about the following conversion?
Acetylene to Oxalic acid
12
257 Draw the structure of the following compound:
p-Methylbenzaldehyde
12
258 In the Rosenmund reduction, the
catalyst used is :
( mathbf{A} cdot P d / B a S O_{4} )
B. Raney ( N i )
( mathbf{c} cdot S n / H C l )
D. ( Z n / H C l )
12
259 Tollen’s reagent is:
A. ammoniacal cuprous chloride
B. ammoniacal cuprous oxide
C. ammoniacal silver nitrate
D. ammoniacal silver chloride
12
260 Identify the product obtained when
following acid prolonged heating
12
261 Select the correct option:
This question has multiple correct options
A. carbonic acid is weaker acid than acetic acid
B. the boiling points of acids are higher than corresponding alcohols
C. chloroacetic acid is stronger acid than acetic acid
D. phenol is more acidic than ethanol
12
262 Q.16 Through which of the following reactions number of carbon atoms can
be increased in the chain?
(a) Grignard reaction
(b) Cannizzaro’s reaction
(c) Aldol condensation
(d) HVZ reaction
12
263 When acetone in treated with
sodium bisulphite, the compound formed is :
( A )
[
mathrm{CH}_{3}-underset{mathrm{SO}_{3}^{prime} mathrm{Na}}{mathrm{C}}^{mathrm{OH}}-mathrm{CH}_{3}
]
в.
[
mathrm{CH}_{3}-begin{array}{c}
text { он } \
mathrm{C} \
mathrm{s} 0_{3}^{prime} mathrm{Na}
end{array}-mathrm{H}
]
( c )
[
mathrm{CH}_{3}-stackrel{mathrm{O}_{3}^{mathrm{Na}}}{mathrm{C}}-mathrm{CH}_{3}
]
D.
[
mathrm{CH}_{3}-stackrel{mathrm{O}_{3}}{mathrm{C}}-mathrm{H}
]
12
264 What is the correct IUPAC name of
HOOC ( -boldsymbol{C H}_{2}- ) COOH
12
265 ( boldsymbol{P h}-underset{boldsymbol{O} boldsymbol{H}}{boldsymbol{C} boldsymbol{H}}-stackrel{boldsymbol{O}}{boldsymbol{C}}-boldsymbol{O H} )
Correct IUPAC naming of given acid is:
A. 1-hydroxy-1-phenylethanoic acid
B. 2-hydroxy-2-phenylethanoic acid
c. 2-phenyl hydroxy ethanoic acid
D. none of these
12
266 Question 7. Identify the compounds A, B and C in the following reaction.
CH3-Br – Mg/ether14 (1) CO2181 CH2OH/H+
(ii) Water
AC
12
267 Which of the following statements is
not true for acetaldehyde?
A. It will undergo an aldol condensation reaction.
B. It will undergo a Cannizzaro reaction.
C. It wit undergo a haloform reaction
D. Enolisation is catalysed by acid or base.
12
268 The IUPAC name of
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}left(boldsymbol{C H}_{3}right) boldsymbol{C H}(boldsymbol{C H O}) boldsymbol{C H}_{2} boldsymbol{C} )
is:
A. 2-sec-butylbutanal
B. 2,3-diethylbutanal
c. 2-Ethyl-3-methyl-pentanal
D. 3-methyl-2-ethylpentanal
12
269 The final product obtained when toluene is subjected to side chain chlorination followed by hydrolysis at 373 K is
A. phenol
B. benzaldehyde
c. acetophenone
D. chlorobenzene
12
270 How will you prepare the following compounds from benzene? You may use any inorganic reagent and any organic reagent having not more than one carbon atom:
(i) Methyl benzoate
(ii) ( m )
Nitrobenzoic acid
(iii) p-Nitrobenzoic acid
Phenylacetic acid
(v) p-Nitrobenzaldehyde.
12
271 What is the best way to carry out the
following transformation? ( 1- )pentyne( longrightarrow ) pentanal
A. ( H g S O_{4} / H_{2} S O_{4} )
B. ( H_{2} / )Lindlar’s catalyst; ( O_{3} ; Z n . H_{2} O )
c. ( H I O_{4} / H_{2} O )
D. ( B H_{3} ; H_{2} O_{2} / N a O H )
12
272 IUPAC name of hydroxybutyraldehyde is
A. 1-hydroxybutanal
B. 2-hydroxybutanol
c. 2-Hydroxybutanal
D. 2-hydroxybutyraldehyde
12
273 Catalytic poison in Rosenmund’s reduction is :
A. quinoline
в. ( H_{2} )
c. ( C H_{3} ) COCl
D. ( C H_{3} C H O )
12
274 The major product obtained in the
reaction is :
( A )
в.
( c )
( D )
12
275 Type your question
( A )
( B )
( c )
( boldsymbol{beta}- ) lactone
( D )
12
276 Which of the above compounds would be expected to decarboxylate when
heated?
( A )
B. I
c. ॥॥
D. IV
12
277 ( frac{5}{6} )
( frac{6}{8} )
in
12
278 One of the following named reaction is an example of disproportionation reaction. Identify it
A. Birch reduction
B. Aldol condensation
c. Reimer-Tiemann reaction
D. Cannizaro reaction
12
279 Formalin is used in the preparation of:
A. bakelite
B. nylon
c. styrene
D. teflon
12
280 Which is the most acidic site? 12
281 Which of the following aldehyde is a gas at room temperature?
A. Methanal
B. Ethanal
c. Propanal
D. Butanal
12
282 Which of the following acids does not contain – COOH group?
A. Carbamic acid
B. Barbituric acid
c. Lactic acid
D. succinic acid
12
283 Which of the following is true
statement?
A. The lower aldehydes have pungent ordour, but as molecular mass increases odour becomes less pungent and more fragrant.
B. The lower aldehydes have fragrant ordour, but as molecular mass increases odour becomes less
fragrant and more pungent.
C. The lower aldehydes have pungent ordour, but as molecular mass increases odour disappears.
D. The lower aldehydes have fragrant ordour, but as molecular mass increases odour disappears.
12
284 The correct order of increasing acidic
strength of the following acids is:
( A cdot|<1|<| )
c. ॥ा < ॥ ।
D. II<IIIS
12
285 The major products obtained during ozonolysis of ( 2,3- ) dimethyl -1
butene and subsequent reductions with
( Z n ) and ( H_{2} O ) are :
A. Methanoic acid and ( 2- ) methyl -2 – butanone
B. Methanal and ( 3- ) methyl -2 – butanone
C. Methanol and ( 2,2- ) dimethyl -3 – butanone
D. Methanoic acid and ( 2- ) methyl -3 – butanone
12
286 Formaldehyde is a liquid at room
temperature.
A. True
B. False
12
287 The reagent which does not give acid chloride on treating with a carboxylic acid is:
A ( . P C l_{5} )
в. ( C l_{2} )
c. ( operatorname{socl}_{2} )
D. ( P C l_{3} )
12
288 An organic compound
(A) (molecular
formula ( C_{8} H_{16} O_{2} ) ) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidationof
(C) with chromic acid
produced (B).
(C) on dehydration gives but-1-ene.Write equations for the reactions involved.
12
289 Question 10. An aromatic compound ‘A’ (molecular formula C.H.
gives positive 2,4-DNP test. It gives a yellow precipitate of compound
on treatment with iodine and sodium hydroxide solution. Compound
does not give Tollen’s or Fehling’s test. On drastic oxidation with
potassium permanganate it forms a carboxylic acid ‘C’ (molecular
formula C,H,02), which is also formed along with the yellow compound
in the above reaction. Identify A, B and C and write all the reactions
involved.
12
290 Which acid is used as table vinegar?
A. Formic acid
B. Acetic acid
c. Picric acid
D. None of these
12
291 The suffix used for naming an aldehyde
is:
A . -ol
B. -al
c. – -one
D. -ene
12
292 toppr ( t )
Q Type your question.
( A )
( B )
( c )
D.
12
293 ( p^{delta} )
( x )
( x )
( s )
12
294 Prepare carbolic acid from benzene
sulphonic acid. Write a chemical
equation for the action of neutral ferric chloride on phenol.
12
295 In electrophilic aromatic substitution reaction, the nitro group is meta directing because it:
A. Decreases electron density at meta position
B. Increases electron density at meta position
c. Increases electron density at ortho and para positions
D. Decreases electron density at ortho and para positions
12
296 Decarboxylation of salts of carboxylic acids is carried out in presence of alcoholic KOH.
A. True
B. False
12
297 Which one of the following acids undergoes decarboxylation on strong heating:
This question has multiple correct options
A. Adipic acid
B. 3 – butenoic acid
c. Formic acid
D. Salicylic acid
12
298 What is the structure of ( boldsymbol{E} ) ? 12
299 Identify ( (X),(Y) ) and ( (Z) ) in the given
reaction. ( boldsymbol{X}+boldsymbol{Y} stackrel{Z}{longrightarrow} boldsymbol{C} boldsymbol{H}_{3}-stackrel{boldsymbol{C} boldsymbol{H}}{boldsymbol{3}-boldsymbol{H} boldsymbol{y} d r o x y} boldsymbol{H}-boldsymbol{C} boldsymbol{H}_{2}- )
( C H O )
A ( cdot X=H C H O Y=C H_{3} C H O Z=K O H )
В . ( X=C H_{3} C H O Y=C H_{3} C H O Z=N a O H )
c. ( X=C H_{3} C H_{2} ) OH ( Y=H C H O Z=H_{2} S O_{4} )
D. ( X=C H_{3} C H_{2} C H O Y=H C H O Z= )Dryether
12
300 What is the IUPAC name for the
following compound?
A. 3-methylpentanoic acid
B. isohexanoic acid
c. ( beta ) -methylvaleric acid
D. 2-methylpentanoic acid
12
301 When an acetyl chloride is heated with
Na salt of a carboxylic acid, the
product is an:
A. ester
B. anhydride
c. alkene
D. aldehyde
12
302 Name of functional group shown.
A. Aldehyde
B. Ketone
C. Alcohol
D. Carboxylic acid
12
303 Malonic ester contains an active
methylene group and two hydrogen atoms of active methylene group which
are easily replaced by alkyl and acyl
groups in the presence of a strong base. The carbonation intermediate formed
makes ( S_{N} 2 ) attack on alkyl or acyl
groups. In the sequence of reactions
given above, the final product ( [S] ) is :
[
[mathrm{Q}] stackrel{mathbf{H}_{3} mathbf{O}^{+}}{longrightarrow}[mathbf{R}] stackrel{text { heat }}{longrightarrow}[mathrm{s}]
]
( mathbf{A} cdot C H_{2}=C H-C H_{2}-C H_{2}-C O-C O O H )
B ( cdot C H_{2}=C H-C H_{2}-C O-C H_{2}-C O O H )
c. ( C H_{2}=C H-C H_{2}-C H_{2}-C O O H )
D. ( C H_{3}-C H=C H-C H_{2}-C O O H )
12
304 How can the following conversation be brought about:
Propanoic acid to ethylamine.
12
305 What is compound ( z: )
[
begin{array}{l}
boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{B} boldsymbol{r} stackrel{boldsymbol{N a C} boldsymbol{N}}{longrightarrow} boldsymbol{X} stackrel{boldsymbol{H}_{3} boldsymbol{O}^{+}}{rightarrow} \
boldsymbol{Y} stackrel{boldsymbol{C H}_{3} C boldsymbol{H}_{2}}{longrightarrow} boldsymbol{O} boldsymbol{H}_{boldsymbol{H}^{+}}
end{array}
]
( mathbf{A} )
[
begin{array}{c}
mathbb{N} \
| \
mathrm{CH}_{3} mathrm{CH}=mathrm{CH} mathrm{COH}
end{array}
]
B. ( C H_{3} C H_{2} C H_{2} C H=N O C H_{2} C H_{3} )
( mathbf{c} cdot C H_{3} C H_{2} C H_{2} C Hleft(O C H_{2} C H_{3}right)_{2} )
D.
[
mathrm{CH}_{3} mathrm{CH}_{2} mathrm{CH}_{2} mathrm{COCH}_{2} mathrm{CH}_{3}
]
12
306 Alkene ( (mathrm{X})left(C_{5} H_{1} 0right) ) on ozonolysis gives a mixture of two compounds ( (Y) ) and ( (Z) ) Compound (Y) gives positive Fehling’s test and iodoform test. Compound ( (z) ) does not give Fehling’s test but give iodoform test. Compounds ( (X),(Y) ) and
(z) are?
A ( cdot X=C_{6} H_{5} C O C H_{3}, Y=C H_{3} C H O, Z= )
( C H_{3} C O C H_{3} )
B. ( X=C H_{3}-C H=underset{C H_{3}}{C}-C H_{3}, Y= )
( C H_{3} C H O, Z=C H_{3} C O C H_{3} )
c. ( X=C H_{3} C H_{2} C H=C H_{2}, Y= )
( C H_{3} C H_{2} C H O, Z=H C H O )
D. ( X=C H_{3}-C H=C H-C H_{3}, Y= )
( C H_{3} C H O, Z=C H_{3} C H O )
12
307 ( triangle-C O O H stackrel{H B r}{rightarrow} ? )
Which of the following is the major product?
( mathbf{A} cdot H_{3} C-C H_{2}-underset{B r}{C} H-C H_{3} )
в. ( B r-C H_{2}-C H_{2}-C H_{2} C O O H )
c. ( H_{3} C-C H-C H_{2}-B r )
Coot
D. ( H_{3} C-C_{text {। }} H-C H_{2} ) COCH
12
308 Toluene ( frac{K M n O_{4} / K O H / H_{3} O oplus}{A .} ) What is
A?
A. Acetice acid
B. Benzene
C. Benzoic acid
D. Benzaldehyde
12
309 In the above reaction sequence, the
correct structures of ( mathrm{E}, mathrm{F} ) and ( mathrm{G} ) are :
( A )
( B )
( c )
( D )
12
310 The conversion of benzaldehyde into benzyl alcohol takes place by:
A. Fittig reaction
B. Wurtz -Fittig reaction
c. wurtz reaction
D. Cannizzaro’s reaction
12
311 Why are aldehydes and ketones polar
compounds?
12
312 toppr
Q Type your question
The final product ( (C) ) of the above
reaction is
( A )
3
( c )
( D )
12
313 G
Q. 17 Benzophenone can be obtained by ……….
(a) benzoyl chloride + benzene + AlCl3
Chloride + benzene + AICINDIN
(b) benzoyl chloride + diphenyl cadmium
(c) benzoyl chloride + phenyl magnesium chloride
(d) benzene + carbon monoxide + ZnCl2
12
314 Give the structural formulae and IUPAC
names of the following compounds:
(a) Formaldehyde
(b) Acetone.
12
315 Column I
( organic compounds ( products of
oxidised by ( H I O_{4} ) ) ( left.H I O_{4} text { oxidation }right) )
12
316 The ( p K_{a} ) values of four carboxylic acids
are 4.76,4.19,0.23 and 3.41
respectively. The ( p K_{a} ) value of strongest carboxylic acid among them is:
A . 4.19
в. 3.41
c. 0.23
D. 4.76
12
317 The product ( ^{prime} X^{prime} ) on oxidation with
HIO gives:

This question has multiple correct options
A. ( H C H O )
в. ( C H_{3}-C H O )
( c cdot c o_{2} )
D. ( H C O O H )

12
318 ( C H_{3} C H_{2} O H+O_{2} stackrel{X}{longrightarrow} ) Vinegar
In the above reaction, ( boldsymbol{X} ) is:
A ( cdotleft(C H_{3} C O Oright)_{2} M n )
в. ( C H_{3} ) СООН
c. mycoderma aceti
D. ( K_{2} C r_{2} O_{7} / H oplus )
12
319 An organic compound ( boldsymbol{A}left(boldsymbol{C}_{mathbf{9}} boldsymbol{H}_{8} boldsymbol{O}_{3}right) ) does
not react with an aqueous solution of
( N a H C O_{3} ) and does not change the
color of litmus paper. A on acid
hydrolysis gives ( Bleft(C_{9} H_{8} O_{4}right) ) whereas ( A ) on treatment with methanol in acid
medium gives ( Cleft(C_{10} H_{14} O_{4}right) ) as the major alcoholysis product. B on heating with excess of soda-lime produces toluene. Deduce structures of ( A ) to ( C )
12
320 reactions.
The products ( (A) ) and ( (B)(B) ) are:
( A )
( B )
( mathbf{N O H} ) and
( c )
NOH and
D.
( mathbf{N O H} ) and
12
321 ( C a C_{2} stackrel{H_{2} O}{N H_{4} C l} frac{C u_{2} C l_{2}}{(2) M g / text { ether }} B frac{(1) 1 text { eqv. } H C l}{(3) C O_{2} / H_{2} O / H^{+}} C )
In above reaction product ( (C) ) is?
( mathbf{A} cdot C H_{2}=C H-C O O H )
( mathbf{B} cdot H C equiv C-C O O H )
c. ( H O O C-C equiv C-C O O H )
( mathbf{D} cdot C H_{2}=C H-underset{cot }{C}=C H_{2} )
12
322 ( frac{(mathbf{1}) boldsymbol{H} boldsymbol{C I}}{(mathbf{2}) boldsymbol{C H}_{2} boldsymbol{O} boldsymbol{H}} times frac{(mathbf{1}) boldsymbol{L} boldsymbol{i} A boldsymbol{I} boldsymbol{H}_{4} / boldsymbol{E} boldsymbol{t}_{2} boldsymbol{O}}{(mathbf{2}) boldsymbol{H}_{2} boldsymbol{O}} boldsymbol{Y} stackrel{boldsymbol{H}_{O}^{+}}{longrightarrow} boldsymbol{Z} ) ldentify ( X, Y ) and ( Z )
(according to the image shown, the
correct ans is)
12
323 The compound ( 2- ) methy -2
butene on reaction with ( N a I O_{4} ) in the
presence of ( K M n O_{4} ) gives:
( mathbf{A} cdot C H_{3} C O O H )
B . ( C H_{3} C O C H_{3}+C H_{3} C O O H )
( mathbf{c} cdot C H_{3} C O C H_{3}+C H_{3} C H O )
( mathrm{D} cdot mathrm{CH}_{3} mathrm{CHO}+mathrm{CO}_{2} )
12
324 dentify ( A, B ) and ( C ) in following
reactions.
12
325 ( d )
( d )
( d )
( d )
12
326 The IUPAC name of ( boldsymbol{C H}_{3}-boldsymbol{C H}= )
( boldsymbol{C H}-boldsymbol{C O O H} ) is:
A. but-2-ene-1-oic acid
B. but-1-ene-1-oic acid
c. but-2-ene-1-carboxylic acid
D. propene-1-carboxylic acid
12
327 2-methyl-1,3-cyclohexanedione is more acidic than cyclohexanone
A. True
B. False
12
328 Draw the structure of the simplest
ketone.
12
329 Which of the following is used for preserving biological specimens?
A. Formaldehyde
B. Ether
c. Ethyl alcohol
D. None of these
12
330 Give the products formed on reductive
ozonolysis with LAH and oxidative
ozonolysis with ( boldsymbol{H}_{2} boldsymbol{O}_{2}, ) from the
compounds.
A. Propan-1,3-diol and propan-1,3-dioic acid
B. Propan-1,2-diol and propan-1,3-dioic acid
C. Propan-1,3-diol and propan-1,2-dioic acid
D. Propan-1,2-diol and propan-1,2-dioic acid
12
331 104. A hydrocarbon of formula CH,, on ozonolysis gives
only one carbonyl product which does not reduce
Fehling’s solution. The hydrocarbon is
(a) 2-Hexene 03 (b) 2,3-Dimethyl-2-butene
(C) 2-Methyl-2-pentene (d) 3-Hexene
12
332 Which of the following is not a use of benzoic acid?
A. Food preservative
B. Anticeptic
c. In manufacture of dye
D. In metal polish
12
333 Assertion
If a pure enantiomer of the following
ester is hydrolysed in dilute alkaline
medium, a pure enantiomer of alcohol
is obtained.
Reason
Under the given condition of hydrolysis, acyl oxygen heterolysis always takes
place.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct
12
334 What is the functional groups in the following molecules?
( boldsymbol{C H}_{3} boldsymbol{C O O H} )
12
335 Decarboxylation of malonic acid gives:
A ( . C H_{4} )
в. ( C H_{3} ) СООН
c. both (a) and (b)
D. none of the above
12
336 Carboxylic acids may be prepared by the reaction of Grignard reagents with:
A. ( C O_{2} )
в. ( C O )
c. Formaldehyde
D. Formic acid
12
337 Identify ( A, B, ) and ( C )
i) Isomeric alcohols ( (A),(B), ) and ( (C) )
( left(boldsymbol{C}_{5} boldsymbol{H}_{12} boldsymbol{O}right) )
ii) ( (A) ) and
(B) react with chromic acid
solution.
(B) gives an acid (D).
iii) Reactivity with HBr is: ( C>A gg B )
All give the same compound,
( boldsymbol{C}_{5} boldsymbol{H}_{11} boldsymbol{B} boldsymbol{r}(boldsymbol{E}) )
iv) Only (A) is oxidised by NaOI.
12
338 The IUPAC name of the following compound is ethyl 4 – acetylbenzoate.
A. True
B. False
12
339 The incorrect statement(s) about the
following two compound ( I ) and ( I I )
is/are:

This question has multiple correct options
A. ( (I I) ) is more acidic than ( (I) )
B. the resonance effect of phenyl ring with – cooH group is more in ( (I I) ) than in ( (I) )
C. ( (I I) ) is weaker acid than ( (I) ) because of electron releasing inductive effect of tertiary – butyl group
D. the positive charge of carboxylate anions of ( (I) ) is more delocalized in the benzene ring than the ( (I I) ) compound

12
340 Identify the combination of compounds that undergo aldol condensation followed by dehydration to produce but ( -2- ) enal
A. methanal and ethanal
B. two moles of ethanal
c. methanal and propanone
D. Ethanal and propanone
E. two moles of ethanol
12
341 Among the following compounds which will react with acetone to give a product containing ( >boldsymbol{C}=boldsymbol{N}-? )
A. ( C_{6} H_{5} N H C O C l )
в. ( left(C H_{3}right)_{2} N-C H_{3} )
c. ( C_{6} H_{5} N H N H_{2} )
D. ( C_{6} H_{5} N H C_{6} H_{5} )
12
342 The IUPAC name of the compound is:
A. 3- Methyl- 5 – heptanone
B. 5-Methylheptan-3-one
c. 5 – Ethyl – 5 – hexanone
D. 2 – Ethyl – 4 – hexanone
12
343 Among the given compounds, the compound which is most susceptible to
a nucleophilic attack at the carbonyl
group is:
A ( cdot C H_{3} C O C l )
в. ( C H_{3} C H O )
( mathbf{c} cdot C H_{3} C O O C H_{3} )
D. ( C H_{3} ) СООСОСН( _{3} )
12
344 Structure of propanone is:
A ( cdot C H_{3}-C H_{2}-C H_{3} )
в. ( C H_{3}-C-O H )

О
c. ( C H_{3}-O-C_{3} H_{7} )
D. ( C H_{3}-C-C H_{3} )
I
O
E ( cdot C H_{3}-C H_{2}-N H_{2} )
12
345 ( boldsymbol{H O O C}-boldsymbol{C H}_{2}-underset{1}{boldsymbol{C} boldsymbol{H}}-boldsymbol{C H}_{2}- )
( boldsymbol{C O O H} )
COOH
What is the IUPAC name of the given
compound?
A. Propane-1,2,3-tricarboxylic acid
B. Propane -1,2,3 – trioic acid
c. 1,2,3 – tricarboxylic propane
D. Propanedioic carboxylic acid
12
346 The acidity of the compounds
( boldsymbol{R} boldsymbol{C O O H}, boldsymbol{H}_{2} boldsymbol{C O}_{3}, boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{O H}, boldsymbol{R O H} )
decreases in the order:
A ( cdot R C O O H>H_{2} C O_{3}>C_{6} H_{5} O H>R O H )
в. ( C_{6} H_{5} )ОН( > )RСООН( >H_{2} )СО( _{3}> )ВОН
c. ( R O H>C_{6} H_{5} O H>R C O O H>H_{2} C O_{3} )
D. ( H_{2} C O_{3}>R C O O H>C_{6} H_{5} O H>R O H )
12
347 10.23 Write IUPAC names of the following structures
CHO
Br
CHO
(0) CHO
CHO
CHO
12
348 Identify ( boldsymbol{X} )
( A )
в.
( c )
( D )
12
349 Diols (I-IV) which react with ( C r O_{3} ) in
aqueous ( H_{2} S O_{4} ) and yield products that readily under go dercarboxylation on heating, are:
( (mathrm{I}) )
A. I and ( J )
B. II and III
c. ( I I ) and ( I V )
D. ( I ) and ( I V )
12
350 Identify the compound ( boldsymbol{A} )
( mathbf{A} cdot C_{6} H_{5} O H )
B ( cdot C_{6} H_{5} C O C H_{3} )
( mathbf{c} cdot C_{6} H_{5} C l )
( mathbf{D} cdot C_{6} H_{5} C H O )
12
351 IUPAC name of ( left(boldsymbol{C H}_{3}right)_{3} boldsymbol{C}-boldsymbol{C H}= )
( boldsymbol{C H}-boldsymbol{C H O} )
A. 4,4,4 -trimethyl but- – -en- -1-al
B. 4, 4-Dimethylpent-2-enal
c. 2, 2-dimethylpent-3- 3n-4-al
D. 3-tert. butyl prop-2-en-1-al
12
352 The structure of compound’X’ is:
( A )
[
mathrm{H}-underset{mathrm{O}}{mathrm{C}}-mathrm{O}-mathrm{C}_{2} mathrm{H}_{5}
]
B.
[
mathrm{CH}_{3}-mathrm{CH}-mathrm{CH}_{2}-mathrm{C}-mathrm{O}-mathrm{C}_{2} mathrm{H}_{5}
]
( c )
[
begin{array}{c}
mathrm{CH}_{3}-mathrm{C}-mathrm{O}-mathrm{C}_{2} mathrm{H}_{5} \
| \
mathrm{O}
end{array}
]
( D )
[
mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{O}-underset{mathrm{O}}{|}-mathrm{CH}_{2}-mathrm{C}_{2} mathrm{H}_{5}
]
12
353 8
8
8
8
12
354 ( frac{sigma}{partial x} )
0
12
355 Assertion
PhCOCOCOPh forms stable hydrate.
Reason
The compound in the hydrate from has intramolecular H-bonding.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is
not the correct explanation for Assertion
C. Assertion is incorrect but Reason is correct
D. Both Assertion and Reason are correct
12
356 reaction?
( A )
( B )
( c )
( D )
12
357 The solubility of water decreases rapidly with the increase in the size of groups attached to carbonyl
group.
A. alkyl
B. aryl
c. phenyl
D. benzyl
12
358 Aldehydes and ketones both undergo condensation with:
A. ( N H_{2} O H )
в. ( operatorname{NaHSO}_{3} )
c. ( H C N )
D. ( R M g X )
12
359 A sample of acetaldehyde contained some ethyl alcohol as impurity. The
reagent useful for the purification of
( boldsymbol{C H}_{3} boldsymbol{C H O} ) is :
A. ( N a H C O_{3} )
B. ( N a_{2} C O_{3} )
( mathbf{c} cdot operatorname{NaH} S O_{3} )
D. ( P C l_{5} )
12
360 The colour of ( C r_{2} O_{7}^{2-} ) changes from orange to blue-green when added to compound (A). The blue-green colour is due to the formation of :
A ( cdot C r^{2} )
в. ( C r^{3} )
( mathrm{c} cdot mathrm{Cr} mathrm{O}_{4}^{2} )
D. ( C r O_{5} )
12
361 Cyanohydrin of which of the following compound on hydrolysis gives optically active products?
A. ( H C H O )
в. ( C H_{3} C H O )
c. ( C H_{3} ) COCH( _{3} )
D. all of the above
12
362 ( M e C H O stackrel{N a O H, Delta}{longrightarrow} A stackrel{K O H, Delta}{longrightarrow} B )
B is:
A ( cdot operatorname{Me}(C H=C H)_{3} C H O )
в. ( M e C H=C H C H O )
c. ( operatorname{Me}(C H=C H)_{2}-C H O )
( D )
(4) ( mathrm{Me}+mathrm{CH}=mathrm{CH}=_{4} mathrm{CHO} )
12
363 Oxidation of cyclohexene in presence of acidic potassium permanganate leads
to.
A . Glutaric acid
B. Adipic acid
c. Pimelic acid
D. succinic acid
12
364 Q Type your question-
gives acetone as one of the products.
The structure of the compound is
( A )
( B )
( c )
( D )
12
365 Which of the following IUPAC name will be used to name carboxylic acid functional group?
A. -one
B. -oic acid
( c .-a )
D. – -ane
12
366 IUPAC name of valeric acid is:
A. Propanoic acid
B. Butanoic acid
c. Ethanoic acid
D. Pentanoic acid
12
367 Given the best condition for this
transformation:
( mathbf{A} cdot C H_{3} O H, H^{+}(mathrm{cat.}), ) heat
B. ( H_{2} O, H_{+} ) (cat.), heat
( mathbf{c} cdot M g, ) ether ( , C H_{3} O H )
( mathbf{D} cdot S O C l_{2}, C H_{3} O H )
12
368 ( left.left(C_{2} H_{5}right)right)_{2} C O frac{H_{3} O^{+}}{C H_{3} M g B r(e x c e s s)} A . A )
(alcohol) can also be obtained by:
A ( cdot C H_{3} C H_{2} C H O frac{H_{3} O^{+}}{C H_{3} M g B r(2 m o l)} )
в. ( _{mathrm{II}}^{o} )
( C H_{3} C O C_{2} H_{5} frac{C H_{3} M g B r(2 m o l)}{H_{3} O^{+}} )
c. ( quad_{mathrm{N}}^{o} mathrm{C}_{mathrm{H}_{3} mathrm{CCH}_{3}} frac{mathrm{CH}_{3} mathrm{MgBr}(1 mathrm{mol})}{mathrm{H}_{3} mathrm{O}^{+}} )
D. both ( B ) and ( C )
12
369 What is the product of the reaction?
( mathbf{A} )
( B )
( mathbf{C} )
( D )
12
370 The number of ( s p^{2} ) hybridized carbon
atoms in the given compound is:
[
mathbf{H C} equiv mathbf{C}-mathbf{C H}_{2}-mathbf{U}-mathbf{C H}_{2}-mathbf{C H}=mathbf{C H}_{2}
]
( A cdot 3 )
B. 4
( c cdot 5 )
( D )
12
371 Which one of the following is an optically active compound?
A. ( C H_{3} C H_{2} ) COOH
в. ( C H_{3} C H(O H) C O O H )
с. НООС СН( _{2} ).СООН
D. ( C H_{3} ) СО СООН
12
372 ( boldsymbol{C}_{boldsymbol{6}} boldsymbol{H}_{boldsymbol{5}}left(boldsymbol{C} boldsymbol{H}_{2}right)_{boldsymbol{2}} boldsymbol{C} boldsymbol{d}+ )
( boldsymbol{2} boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C o C l} stackrel{d r y}{operatorname{ether}} )
12
373 Write the product of this reaction?
[
mathrm{C}_{6} mathrm{H}_{5}-mathrm{CH}-mathrm{CH}_{3} frac{mathrm{OH}}{mathrm{CCl}_{4}}>
]
12
374 Stephen’s reduction is used to prepare
aldehyde from :
A. Alcohol
B. Alkyl cyanide
c. Alkanone
D. Acid chloride
12
375 Structure of ( A ) and the type of
isomerism in the above reaction are respectively:
( boldsymbol{C H}_{3}-boldsymbol{C} equiv boldsymbol{C H} frac{40 % boldsymbol{H}_{2} boldsymbol{S O}_{4}}{1 % boldsymbol{H g S O}_{4}} )
( boldsymbol{A} stackrel{text {Isomerisation}}{longrightarrow} boldsymbol{C H}_{3} boldsymbol{C O C H}_{3} )
A. prop-1-en-2-ol, metamerism
B. prop-1-en-2-ol, tautomerism
c. prop-z-en-2-ol, cis and trans isomerism
D. prop-2-en-1-ol, tautomerism
12
376 Above reaction is known as:
[
begin{array}{c}
mathrm{O} \
mathrm{H}-mathrm{C}-mathrm{D}-mathrm{H}^{28} mathrm{O}^{-}
end{array} mathrm{H}-mathrm{N}^{-18} mathrm{O}^{-}+mathrm{CH}_{2} mathrm{D}-mathrm{OH}
]
A. Cannizaro reaction, Disproportionation reaction
B. Tischenko reaction, Disproportionation reaction
C. Cross Cannizaro reaction, Redox reaction
D. Tischenko reaction, Redox reaction
12
377 Which product is formed when 3
methylpentane-1,3,4-triol is heated under reflux with an excess of acidified
potassium dichromate(VI)?
A ( cdot H O_{2} C C H_{2} Cleft(C H_{3}right)(O H) C O C H_{3} )
в. ( H O_{2} C C H_{2} C O C(O H)left(C H_{3}right)_{2} )
c. ( O H C C H_{2} Cleft(C H_{3}right)(O H) C O C H_{3} )
D. ( H O_{2} C C H_{2} C Oleft(C H_{3}right) C O C H_{3} )
12
378 Q. 12 In Clemmensen reduction, carbonyl compound is treated with
(a) zinc amalgam + HCI
(b) sodium amalgam + HCI
(c) zinc amalgam + nitric acid
(d) sodium amalgam + HNO,
12
379 ( A ) compound ( C ) (molecular formula,
( left.C_{2} H_{4} O_{2}right) ) reacts with ( N a ) metal to form
a compound ( boldsymbol{R} ) and evolves a gas which
burns with a pop sound. Compound ( C )
on treatment with an alcohol ( A ) in
presence of an acid forms a sweet smelling compound ( S ) (molecular formula, ( C_{3} H_{6} O_{2} ) ). On addition of
NaOH to ( C, ) it also gives ( R ) and water.
S on treatment with ( N a O H ) solution
gives back ( boldsymbol{R} ) and ( boldsymbol{A} )
Identify ( boldsymbol{R} ) and ( boldsymbol{A} ) ?
A . Compound ( R ) is ( C H_{3} C O O N a ) Compound ( A ) is ( C H_{3} O H )
B. Compound ( A ) is ( C H_{3} O H ) Compound ( R ) is ( C H_{3} C O O C H_{3} )
C. Compound ( A ) is ( C H_{3} C O O H ) compound ( R ) is ( C H_{3} C O O N a )
D. Compound ( A ) is ( C H_{3} C O O N a ) Compound ( R ) is ( C H_{3} O H )
12
380 Write IUPAC name and chemical
formula of Acetone.
12
381 is/are used in the
manufacture of bakelite polymer.
A. Propyl alcohol
B. Phenol
c. Formaldehyde
D. both B and C
12
382 Esterification of the acid ( (P) ) with the
alcohol (Q) gives:
A. only one enantiomer
B. a mixture of diastereomer
c. a mixture of enantiomer
D. only one fraction on fractional distillation
12
383 The compound (A) is:
( mathbf{A} )
B.
( mathbf{C} )
D.
12
384 In the presence of manganese acetate, ethyne produces:
A . acetic acid
B. propanoic acid
c. butanoic acid
D. methanoic acid
12
385 Answer the following questions:
1. Explain the mechanism of aldol addition reaction.
2. Mention two uses of carboxylic acids.
12
386 The IUPAC name of the given compound
is:
A. 4 – pentanone
B. pentanone –
c. Pentan-2-one
D. none of the above
12
387 Arrange the following in increasing order of their acidic character:
Benzoic acid, Phenol, Cresol
12
388 In which of the following solvent/(s), aldehydes and ketones are soluble?
A. Alcohol
B. ether
c. benzene
D. All of the above
12
389 Which part of – COOH group is involved in the reaction of acid with metals?
A. C group
B. only -OH group
c. соон group
D. all carboxylic group
12
390 The secondary suffix, ‘-one’ indicates
the following functional group in the compound.
A. -coon
в.
c.
D. – он
12
391 IUPAC name of the following compound
is :
A. 6 -ethyl-1,4, 6-octanetrioic acid
B. 5-Ethyl -hexane-1, 3, 6-tricarboxylic acid
C. 3-ethyl-5-carboxyoctanedioic acid
D. 4-carboxy-6-ethyloctanedioic acid
12
392 In case of aldehydes and ketones there is the addition of nucleophile but in case of acyl compound, there is a nucleophilic substitution.
A. True
B. False
12
393 The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits:
A. geometrical isomerism
B. optical isomerism
c. neither optical nor geometrical isomerism
D. both optical and geometrical isomerism
12
394 Question 12. How can propan-2-one be converted into tert. butyl
alcohol?
12
395 How are the following compounds
prepared? Benzaldehyde from benzene.
12
396 Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents.
(i) PhMgBr and then ( boldsymbol{H}_{3} boldsymbol{O}^{+} )
(ii) Tollens reagent
(iii) Semicarbazide and weak acid
(iv) Excess ethanol and acid
(v) Zinc amalgam and dilute
hydrochloric acid
12
397 Assertion
2,4-Dimethyl hex-2-ene has 4
stereoisomer
Reason
It show geometrical isomerism
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
398 115. Which of the following compounds was the starting
material for the oxidation shown below?
KMnO4/H
OH
OH + CO2
OH
(a)
12
399 Using grignard reagent ( boldsymbol{C}=boldsymbol{O}+boldsymbol{R}-boldsymbol{M} boldsymbol{g} boldsymbol{X} rightarrow ) 12
400 Which compound does not gives Cannizaro’s reaction:
A. Acetaldehyde
B. Benzaldehyde
c. Formaldehyde
D. None of the above
12
401 The correct statement(s) about the
following reaction sequence is(are):
Cumene ( left(C_{9} H_{12}right) frac{i) O_{2}}{i i) H_{3} O^{+}} )
( P frac{C H C l_{3} / N a O H}{ } Q(text { major })+ )
( boldsymbol{R}(boldsymbol{m} boldsymbol{i n} boldsymbol{o r}) boldsymbol{Q} frac{boldsymbol{N a O H}}{boldsymbol{P h C H}_{2} boldsymbol{B r}} boldsymbol{S} )
This question has multiple correct options
A. ( R ) is steam volatile
B. Q gives dark violet coloration with ( 1 % ) aqueous ( F e C l_{3} ) solution
c. ( operatorname{sgives} ) yellow precipitate with ( 2,4- ) dinitrophenylhydrazine
D. s gives dark violet coloration with ( 1 % ) aqueous ( F e C l_{3} ) solution.
12
402 Amongst the given, the total number of
compounds suitable in aqueous
NaOH are:
( A )
3.2
( c .3 )
( D )
12
403 The condensation reaction between one
equivalent of acetone and two
equivalents of benzaldehyde in presence of dilute alkali leads to the
formation of:
A. Benzalacetophenone
B. Benzylideneacetone
c. Dibenzalacetone
D. Benzoic acid and acetic acid
E. Only benzoic acid
12
404 Among the following, which is the strongest acid?
A. ( C H F_{2}-C H_{2}-C H_{2}-C O O H )
в. ( C H_{3}-C H_{2}-C F_{2}- ) СООН
c. ( C H_{2} F-C H F-C H_{2}-C O O H )
D. ( C H_{3}-C F_{2}-C H_{2}-C O O H )
12
405 Out of the following the one that undergoes reaction with ( 50 % ) NaOH solution to give corresponding alcohol
and acid is:
A. phenol
B. benzaldehyde
c. butanol
D. benzoic acid
12
406 ( a-(0)-_{i_{f, a}}^{i}(Omega)-a )
( a-[0]_{i}^{i}(0)-a )
( a-(0)-_{i}^{i}(0)-a )
( a-(0)-underset{c c_{3}}{c_{0}}<0-c )
12
407 How many of the given compounds will
react with ( N a H C O_{3} ? )
12
408 The alkene ( C_{6} H_{10} ) producing
OHC ( left(C H_{2}right)_{4} C H O ) on ozonolysis is:
A. 1 -hexene
B. 3-hexene
c. cyclohexene
D. 1-methylcyclohexene
12
409 Which of the following substituted
carboxylic acids has the highest ( boldsymbol{K}_{boldsymbol{a}} )
value?
( A )
в.
( c )
D.
12
410 COOH
120. 11
Li, Liq. NH3 , major product:
COOH
COOH
CHOH
be
COOH
(c) ||
(d)
12
411 Why do aldehydes and ketones have
high dipole moments?
12
412 ( frac{d}{d} ) 12
413 The IUPAC name of ( boldsymbol{C H}_{3} boldsymbol{C O C H}left(boldsymbol{C H}_{3}right)_{2} )
is:
A. 4-methylisopropyl ketone
B. 3-Methyl-2-butanone
c. Isopropylmethyl ketone
D. 2-methyl-3-butanone
12
414 Which of the following is the functional group for carboxylic acids?
( A )
[
>C=0
]
B.
( c )
( -mathrm{OH} )
( D )
12
415 ( j_{j}^{j} ) 12
416 The correct structural formula of
butanoic acid is
12
417 How anisole reacts with bromine in
ethanoic acid? Write the chemical
equation for the reaction.
12
418 0.24 Which of the carbon atoms present in the molecule given below are
asymmetric?
но ,
он но
нон
(с) 1,4
(а) 1, 2, 3, 4
(b) 2, 3
(d) 1, 2, 3
furgoncies with four
12
419 Ethanedioic acid has the formula
( H O_{2} C C O_{2} H . ) What is the formula of
aluminium ethanedioate?
A ( . A l C_{2} O_{4} )
в. ( A lleft(C_{2} O_{4}right)_{3} )
( mathbf{c} cdot A l_{2} C_{2} O_{4} )
D. ( A l_{2}left(C_{2} O_{4}right)_{3} )
12
420 Assertion
The acid hydrolysis of ester takes place
more rapidly in ( D_{2} O ) than ( H_{2} O )
Reason
( D_{3} O^{+} ) is stronger acid than ( H_{3} O^{+} )
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
421 A compound ‘X’ gives brisk
effervescence of ( C O_{2} ) on treatment with
Na H ( C O_{3} ) and when treated with

Li ( A l H_{4} ) gives ethyl alcohol. Therefore ‘X
may be:
A. ( C H_{3} C O C H_{3} )
в. ( C H_{3} C H_{2} C H O )
c. ( C H_{3} C H O )
D. ( C H_{3} C O O H )

12
422 ( sigma )
( sigma )
0
12
423 What is the action of acidified
potassium dichromate on acetaldehyde?
12
424 Write IUPAC name of the compound
above
A. 2-Amino-4-hydroxybenzoic acid
B. 6-Amino-4-hydroxybenzoic acid
c. 3-Amino-4-carboxyphenol
D. 2-Carboxy-5-hydroxyaniline
12
425 2.27 Arrange the following in decreasing order of their acidic strength and
give reason for your answer.
CH3CH2OH, CH3COOH, CICH,COOH, FCH2COOH, CGH-CH2COOH
Thinking Process
12
426 The correct order of acidic strength of
carboxylic acid is:
A. formic acid< benzoic acid< acetic acid
B. formic acids acetic acid < benzoic acid
C. acetic acid< formic acid< benzoic acid
D. acetic acid< benzoic acid< formic acid
12
427 Rochelle salt is :
A. sodium tartarate
B. sodium potassium tartarate
c. ammonium tartarate
D. potassium ammonium tartarate
12
428 The acid strength of active methylene group in given compounds decreases
as:
(a) ( boldsymbol{C H}_{3} boldsymbol{C O C H}_{2} boldsymbol{C O O C}_{2} boldsymbol{H}_{5} )
(b) ( C H_{3} C O C H_{2} C O C H_{3} )
(c) ( C_{2} H_{5} O O C C H_{2} C O O C_{2} H_{5} )
( mathbf{A} cdot a>b>c )
В . ( c>a>b )
( mathbf{c} cdot a>c>b )
D. ( b>a>c )
12
429 The IUPAC name of acetyl acetone is :
A. pentane-2,5-dione
B. pentane-2,4-dione
c. hexane- 2,4 -dione
D. butane-2,4-dione
12
430 The name of the compound is
Cyclopropanecarboxylic acid.
A. True
B. False
12
431 Assertion
Oxidation of glucose by ( B r_{2} ) water gives
saccharic acid.
Reason
Bra water oxidized -CHO and alcohol.
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
432 Formalin is:
A. ( 60 % ) solution of formaldehyde
B. ( 40 % ) solution of formaldehyde
C. ( 30 % ) solution of formaldehyde
D. ( 50 % ) solution of formaldehyde
12
433 Which of the following reagents can reduce acetyl chloride to acetaldehyde?
A ( cdot N a / C_{2} H_{5} O H )
в. LiАlH( _{4} )
c. ( H_{2} / N i )
D. ( H_{2} / P d-B a S O_{4} )
12
434 Which of the following carbonyl compounds is most polar?
A. ( C_{2} H_{5}-stackrel{I}{C}-C_{2} H_{5} )
B. ( quad o )
( C H_{3}-C-C H_{3} )
c.
[
C H_{3}-C-H
]
D.
[
H-C-H
]
12
435 uuluu man carboxylic acids.
2. 20 what product will be formed on reaction of propanal WI
menylpropanal in the presence of NaOH? What products will be
formed? Write the name of the reaction also.
12
436 Aldehydes and ketones are
differentiated by using:
( mathbf{A} cdot N a O H / I_{2} )
B. ( N a H S O_{3} )
( mathbf{c} cdot A g N O_{3} / N H_{4} O H )
D. ( N H_{2}-N H_{2} )
12
437 ( boldsymbol{P} frac{boldsymbol{K} boldsymbol{M} boldsymbol{n} boldsymbol{O}_{4} / boldsymbol{K} boldsymbol{O} boldsymbol{H}}{longrightarrow} boldsymbol{Q} frac{text {Sodalime}}{Delta} boldsymbol{R} frac{boldsymbol{C H}_{3} boldsymbol{C l}}{boldsymbol{a n h y} cdot boldsymbol{A l} boldsymbol{C l}_{3}} boldsymbol{S} )
If ( P ) and ( S ) are toluene, ( Q ) and ( R )
and ( —– ) respectively.
A. Benzaldehyde, Benzoic acid
B. Benzaldehyde, Sodium benzoate
C. Benzoic acid, Benzene
D. Benzene, Benzoic acid
12
438 Which of the following is the best
preparation of ( 2- ) methyl pentanoic
acid?
A ( cdot ) 2 – chloropentane ( stackrel{N a C N(a q)}{longrightarrow} stackrel{H^{+} / H_{2} O}{longrightarrow} )
B・ ( _{2-text { pentanone }} stackrel{N a C N(a q)}{longrightarrow} stackrel{H^{+} / H_{2} O}{longrightarrow} )
c. 2 – bromopentane ( frac{M g}{text {Ether}} ) (ii) (i) ( C O_{2} ) ( overline{H C I} ) H ( _{2} ) O
D. ( 1- ) chloropentane ( stackrel{N a C N(a q)}{longrightarrow} stackrel{H^{+} / H_{2}}{longrightarrow} )
12
439 Which of the following constitutes the best substrate during the acidic
hydrolysis of amides?
( A )
в.
( c )
D.
12
440 The most direct malonic ester synthesis of the 3-phenyl propanoic acid would involve the use of :
A. ( C_{6} H_{5} C H_{2} C H_{2} C H_{2} C l )
в. ( C_{6} H_{5} C H_{2} C H_{2} C l )
c. ( C_{6} H_{5} C H_{2} C l )
D. ( C l C H_{2} C O O H )
12
441 The given compound is used as:
A. antihistamine
B. analgesic
C . insecticide
D. antacid
12
442 Write the reaction to prepare
acetaldehyde from hydrogen gas and an acid chloride?
12
443 Compound ( Xleft(C_{5} H_{8} O_{2}right) ) forms a
dioxime with ( N H_{2} O H . ) On

Clemmensen reduction it forms a
compound which forms only one monochloro derivative. ‘X’ can be :
( A )
в.
( c )
D. онс-снд ( -mathrm{cH}_{2}-mathrm{cH}_{2}- ) сно

12
444 Aldehydes and ketones with or more carbon atoms are either
sparingly soluble or insoluble in water
A. 5
B. 6
( c cdot 7 )
D. 8
12
445 Which one of the following pentafluorides cannot be formed?
A. ( P F_{5} )
B. ( A s F_{5} )
( mathrm{c} . S b F_{5} )
D. ( B i F_{5} )
12
446 Q. 15 Which of the following conversions can be carried out by Clemmensen
reduction?
(a) Benzaldehyde into benzyl alcohol
(b) Cyclohexanone into cyclohexane
(c) Benzoyl chloride into benzaldehyde
(d) Benzophenone into diphenyl methane
12
447 ( boldsymbol{C H}_{3}-boldsymbol{C} equiv boldsymbol{C}-boldsymbol{C H}_{3} frac{(i) boldsymbol{x}}{(i i) Z n / boldsymbol{H}_{2} boldsymbol{O}} )
( boldsymbol{C H}_{3}-underset{boldsymbol{O}}{boldsymbol{V}}-underset{boldsymbol{O}}{boldsymbol{V}}-boldsymbol{C H}_{boldsymbol{3}} )
In the above reaction ( x ) is:
A ( . H N O_{3} )
B. ( O_{2} )
( c cdot O_{3} )
D. ( K M n O_{4} )
12
448 Which of the following reagents can form a phenylhydrazone with dimethyl ketone?
( mathbf{A} cdotleft[N H_{3} O Hright]^{oplus} C l^{ominus} )
в. ( P h N H N H_{2} )
c. ( N H_{2} N H C O N H_{2} )
D. ( H C N )
12
449 Carbonyl compounds react with phenyl hydrazine to form:
A . oxime
B. phenyl hydrazone
c. hydrazone
D. semicarbazone
12
450 The appropriate reagent for the
transformation:
( mathbf{A} cdot Z n(H g), H C l )
( mathbf{B} cdot N H_{2} N H_{2}, O H^{-} )
( mathbf{C} cdot H_{2}, N i )
( mathbf{D} cdot N a B H_{4} )
12
451 ( boldsymbol{p} boldsymbol{K}_{a} ) and ( boldsymbol{K}_{a} ) of an acid are connected
by the relation – –
A ( cdot p k_{a}=log k_{a} )
B ( cdot p k_{a}=-p H )
c. ( p k_{a}=-log k_{a} )
D・ ( p k_{a}=- ) logk ( _{b} )
12
452 Methyl cyanide on hydrolysis gives:
A . acetic acid.
B. acetaldehyde
c. acetone.
D. methyl amine.
12
453 The boiling point of aldehyde and
ketones depend upon:
A. intermolecular dipole-dipole repulsion
B. intermolecular dipole-dipole attraction.
C. intermolecular induced dipole-dipole attraction.
D. none of these.
12
454 Acetone is used:
A. for extraction of essential oils
B. as a constituent of liquid nail polish
C. both A and B
D. none of these
12
455 194. Which of the following reaction would not give at least
one aldehyde product?
(a) 1-pentyne + B, H, NaOH →
(b) 2-butyne + Na _ NH3 () –
NaOH
(c) 1-pentyne + KMnO4 –
(d) Cyclopentene + 0, 1,0
Zn
12
456 ( boldsymbol{C H}_{3} boldsymbol{C H O}+ )
( boldsymbol{H}_{2} boldsymbol{C}(boldsymbol{C O O R})_{2} frac{(i) boldsymbol{P i p}}{(i i) boldsymbol{H}_{3} O oplus, boldsymbol{Delta}} boldsymbol{A} )
If ( mathbf{A} ) is ( boldsymbol{C} boldsymbol{H}_{boldsymbol{p}}-boldsymbol{C} boldsymbol{H}=boldsymbol{C} boldsymbol{H}-boldsymbol{C} boldsymbol{O}_{boldsymbol{q}} boldsymbol{H} )
Then find the value of ( boldsymbol{p}+boldsymbol{q} )
12
457 Write the IUPAC names of following ketone or aldehyde. If possible, give common name(s) also.
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}(boldsymbol{B r}) boldsymbol{C H}_{2} boldsymbol{C H}left(boldsymbol{C H}_{3}right) boldsymbol{C H} )
12
458 Which of the following can be used for protection of carbonyl group:
This question has multiple correct options
A. ( C H_{2} O H-C H_{2} O H / H )
в. ( C H_{2} O H-C H_{2}-C H_{2} O H / H )
c. ( H S-left(C H_{2}right)_{3}-S H )
D. ( C H_{2} O H-C H_{2}-C H O )
12
459 You can make an organic acid from
ethanol and that is:
( mathbf{A} cdot C_{3} H_{7} O H )
B. found in bees and ants
c. acetic acid
D. formic acid
E. butanoic acid
12
460 Mechanism of Cannizzaros reaction of
benzaldehyde is Which of the following reactants can undergo Cannizaro’s reaction?
A. ( _{|}^{o} )
( H-C-H )
в. ( R_{3} C C H O )
( c )
D. All of these
12
461 Which among the following compounds will not give effervescence with sodium bicarbonate?
A. ( C_{6} H_{5} C O_{2} H )
в. ( C_{6} H_{5} S O_{3} H )
( mathbf{c} cdot C_{6} H_{5} O H )
D. ( C_{6} H_{3} N_{3} O_{7} )
12
462 Which of the following reagent is used to identify carbonyl group from other functional groups?
A. Schiff reagent
B. Fehling solution
c. 2,4-dinitrophenylhydrazine
D. Tollen’s reagent
12
463 Question 6. Aspirin is pain relieving antipyretic drug but can be used to
prevent heart attack. Explain.
lotolot coamlation and thus har
12
464 Which of the following will have highest
value of ( p K a ? )
A. ( F C H_{2} C H_{2} ) СООН
в. ( C H_{3} C H(F)- ) СООН
c. ( C H_{3} C H(B r)-C O O H )
D. ( C H_{3} C H_{2} C O O H )
12
465 ( y= )
( y )
( y )
( y )
12
466 Wang
Q. 42 Assertion (A) Formaldehyde is a planar molecule.
ar molecule. T
Reason (R) It contains sp2 hybridised carbon atom.
12
467 How will you convert Benzene to acetophenone? 12
468 Which reagent should be used for
following conversion?
A. ( N H_{2}-N H_{2} / O H^{-} )
B . ( H_{2}-P d / C )
( mathbf{c} . Z n-H g / )Conc ( H C l )
D. Both (A) and (C)
12
469 Which of the following is nucleophilic
addition reaction?
This question has multiple correct options
( mathbf{A} cdot C H_{3} C O C l frac{C H_{3} M g B r(1 e q)}{ } C H_{3} C O C H_{3} )
( mathbf{B} cdot C H_{3} C O C H_{3} frac{I_{2} / O H^{-} / Delta}{longrightarrow} C H_{3} C O O^{-}+C H I_{3} )
( mathbf{c} cdot operatorname{Ph} C H O frac{K C N / H^{oplus}}{longrightarrow} operatorname{Ph} C H(O H)(C N) )
( mathbf{D} cdot C H_{3} C equiv C M g B r frac{C H_{3} B r}{longrightarrow} C H_{3} C equiv C C H_{3} )
12
470 Formalin is ( % ) solution of
formaldehyde in water
A . 10
B. 20
( c cdot 40 )
D. 60
12
471 Methyl vinyl ketone on reaction with
LiCu Me gives a major product,
whose structure is:
( A )
B.
( c )
( D )
12
472 Which of the following aldehyde is mostly used as plasticizer?
A. Formaldehyde
B. Acetaldehyde
c. Butyraldehyde
D. Benzaldehyde
12
473 A compound, containing only carbon, and hydrogen and oxygen, has a molecular weight of ( 44 . ) On complete oxidation it is converted into a
compound of molecular weight ( 60 . ) The original compound is
A. an aldehyde
B. an acid
c. an alcohol
D. an ether
12
474 In Kolbe’s reaction with phenol as the
reactant, the number of ( O ) atoms in the
final product is:
12
475 0
6
0
6
12
476 A terpene has molecular formula
( Aleft(C_{10} H_{16} Oright) ) and it is a major
constituent of lemongrass oil. ( boldsymbol{A} ) on
treatment with acidified ( K M n O_{4} )
solution produces acetone, Oxalic acid
and ( boldsymbol{C H}_{3} boldsymbol{C O C H}_{2} boldsymbol{C H}_{2} boldsymbol{C O O H} . boldsymbol{A} | mathbf{s o}, boldsymbol{A} )
does not give silver mirror test with Tollen’s reagent. The correct deduction regarding ( boldsymbol{A} ) is/are:
A. ( A ) gives positive iodoform test
B. ( A ) has two stereoismers
c. ( A ) has one chiral carbon
D. ( A ) on treatment with ( N H_{2} O H ) gives six pair of diastereomers
12
477 The order of reactivity of carboxylic acid
derivatives is:
A. Acid Chloride ( > ) Ester ( > ) Amide ( > ) Acid Anhydride
B. Acid Chloride ( > ) Acid Anhydride ( > ) Ester ( > ) Amide
C. Acid Chloride ( > ) Amide ( > ) Acid Anhydride ( > ) Ester
D. Acid Anhydride > Ester > Amide > Acid Chloride
12
478 Choose the correct statement regarding the physical properties of carbonyl compound.
A. All aldehydes are insoluble in benzene
B. Higher aldehydes are more fragrant
c. n-Butane has more boiling point than acetone
D. Methanal and propanone are immiscible with water in all proportions
12
479 An organic compound gives orange precipitate with ( 2,4-D N P H . ) What is
the functional group in the compound?
12
480 HgSO4/H2SO4X
207. 1-pentyne
BHZ.THF/H,02,0H
sy
X and Y can be distinguished by:
(a) silver-mirror test (b) iodoform test
(c) both of these (d) none of these
12
481 The properties of aldehydes and ketones
are:
This question has multiple correct options
A. they can form hydrogen bonds in water
B. they can form hydrogen bonds with themselves
C. they are polar in nature
D. generally boiling point decrease with the increase in molecular weight
12
482 Which of the following could be named
as ( 2- ) pentanone?
A. ( R-C O O H )
в. ( R-C H O )
c. ( R-C O-R )
D. ( R-C O O-R )
E ( . R-C O-N H_{2} )
12
483 Write any two uses of ( 40 % ) solution of
formaldehyde.
12
484 Which one of the following does not form sodium bisulphite addition
product with sodium bisulphite
solution?
A. ( C H_{3} C O C H_{3} )
( mathbf{c} cdot C_{6} H_{5} C H O )
D. ( C H_{3} C H O )
12
485 Question 3. Arrange the following compounds in increasing order of
their boiling points. CH3CHO, CH3CH2OH, CH3OCH3, CH3CH,CH,
Boiling point is related to attractive forces. Stronger the attractive force,
higher is the boiling point,
12
486 Acetaldehyde on reaction with Grignard reagent and subsequent hydrolysis yields:
A. tertiary alcohol
B. primary alcohol
c. secondary alcohol
D. both primary and secondary alcohol
12
487 Which of the following order of acidity is
correct?
(I) ( quad mathbf{C H}_{3}-mathbf{N H}_{2} )
(II) ( mathbf{H}-mathbf{C} equiv mathbf{C}-mathbf{H} )
(III)
(IV)
A. ( I I I>I V>I>I I )
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
488 ( C_{n} H_{2 n-1} C O O H ) is the general formula
for:
A. saturated fatty acids
B. unsaturated fatty acids
c. simple lipids
D. phospholipids
12
489 The IUPAC name of the compound is :
A . 1,2,3 -triformyl propane
B. 3-formyl-1, 5-pentane dial
c. propane-1, 2, 3-trial
D. Propane-1, 2, 3-tricarbaldehyde
12
490 The IUPAC name of the formic acid:
A. methanoic acid
B. ethanoic acid
C. propanoic acid
D. butanoic acid
12
491 Which of the following methods can be
used to prepare propanoic acid?
( mathbf{A} )
B.
( mathrm{CH}_{2}=mathrm{CH}_{2}+mathrm{CO}+underset{(text { Steam })}{mathrm{H}_{2} mathrm{O}}-frac{text { High pressure }}{570-670 mathrm{K}} )
C. Reaction of ( E t M g B r ) with dry ice followed by the acidification with diL ( H C l )
D. Sodium ethoxide is heated with ( C O ) under pressure followed by the acidification with dil, ( H C l )
12
492 What is meant by an acetal? Give an example of reaction(with mechanism) showing its formation. 12
493 Isobutyraldehyde on oxidation gives:
A. 2-Methylpropanoic acid
B. 2-Methylpropanone
c. Propanoic acid
D. 2-Methyl butanoic acid
12
494 The – COOH group in a carboxylic acid canbe replaced by H by heating the acid with :
A. zn with HCI
B. ( H_{2} ) in presence of nickel
c. soda lime
D. bromine and concentrated aqueous alkal
12
495 ( boldsymbol{C H}_{3}-boldsymbol{C H O} stackrel{boldsymbol{O H}^{-}}{longrightarrow} boldsymbol{A} )
The IUPAC name of ( boldsymbol{A} ) is:
A. aldol
B. prop-1-ene-2-ol
c. 4 -hydroxy- 4 -methyl 2 -pentanone
D. 3-Hydroxybutanal
12
496 What is the final product? ( boldsymbol{C H} )
The compound ( boldsymbol{C H}_{3}-boldsymbol{C}=boldsymbol{C H}- )
( C H_{3} ) on reaction with ( N a l O_{4} ) in the
presence of ( boldsymbol{K} boldsymbol{M} boldsymbol{n} boldsymbol{O}_{boldsymbol{4}} )
A. ( C H_{3} C O C H_{3} )
в. ( C H_{3} C O C H_{3}+C H_{3} C O O H )
c. ( C H_{3} C O C H_{3}+C H_{3} C H O )
D. ( C H_{3} C H O+C O_{2} )
12
497 Write the IUPAC name of following ketone or aldehyde. If possible, give the
common name(s) also.
( boldsymbol{C H}_{3} boldsymbol{C O}left(boldsymbol{C H}_{2}right) boldsymbol{C H}_{3} )
12
498 ( boldsymbol{R}-boldsymbol{C O O H}+boldsymbol{R}-boldsymbol{C O O N a} rightarrow ? ) 12
499 Acetone on addition to methyl magnesium bromide forms a complex, which on decomposition with acid gives
( X ) and ( M g(O H) B r . ) Which one of the
following is ( boldsymbol{X} ) ?
( mathbf{A} cdot C H_{3} O H )
в. ( left(C H_{3}right)_{3} C O H )
( mathrm{c} cdotleft(mathrm{CH}_{3}right)_{2} mathrm{CHOH} )
D. ( C H_{3} C H_{2} ) OH
12
500 is used in the preparation of chloroform, sulphonal, cordite etc.
A. formalin
B. ethyl alcoho
c. acetone
D. none of these
12
501 Arrange the following compounds in
increasing order of their boiling points:
( mathbf{C H}_{3} mathbf{C H}_{2} mathbf{C H}_{2} mathbf{C H O}, mathbf{C H}_{3} mathbf{C H}_{2} mathbf{C H}_{2} mathbf{C H}_{2} )
12
502 ( X frac{H_{2} text { along with boiling xylene}}{P d / B a S O_{4}} C H_{3} C H O )
In the above reaction ( boldsymbol{X} ) is:
A ( cdot C H_{3} C O O H )
в. ( C H_{3} ) СОС( l )
c. ( C H_{3} C O C H_{3} )
D. ( C H_{3} C H_{2} ) ОН
12
503 Compound ( A ) undergoes formation of cyanohydrins which on hydrolysis gives
lactic acid ( left(boldsymbol{C H}_{3} boldsymbol{C H O H} boldsymbol{C O O H}right) )
Therefore, compound ( boldsymbol{A} ) is:
A. formaldehyde
B. acetaldehyde
c. acetone
D. benzaldehyde
12
504 An unknown compound has molecular
formula ( C_{7} H_{12} ).It gives two aldehydes shown below upon ozonolysis followed
by workup with ( Z n-H_{2} O . ) What is the
the structure of the original compound?
and
( A )
B.
( c )
D. None of the above
12
505 The correct order of increasing acidic
strength is:
A. Phenol ( < ) Ethanol ( < ) Chloroacetic acid ( < ) Acetic acid
B. Ethanol ( < ) Phenol ( < ) Chloroacetic acid ( < ) Acetic acid
C. Ethanol ( < ) Phenol ( < ) Acetic acid ( < ) Chloroacetic acid
D. Chloroacetic acid ( < ) Acetic acid ( < ) Phenol ( < ) Ethanol
12
506 When benzene sulphuric acid and ( p )
nitrophenol are treated with ( N a H C O_{3} )
the gases released, respectively are:
A. ( S O_{2}, N O_{2} )
в. ( S O_{2}, N O )
( mathrm{c} cdot mathrm{SO}_{2}, mathrm{CO}_{2} )
D. ( C O_{2}, C O_{2} )
12
507 Acetophenone cannot be prepared
easily starting from:
A ( cdot C_{6} H_{5} C H_{3} )
B . ( C_{6} H_{6} )
( mathbf{c} cdot C_{6} H_{5} C H(O H) C H_{3} )
D. ( C_{6} H_{5} C equiv C H )
12
508 Reaction by which Benzaldehyde cannot
be prepared?
( mathbf{A} )
co in ( mathrm{CS}_{2} ) followed by ( mathrm{H}_{3} mathrm{O} )
B.
in presence of ( mathrm{Pd}-mathrm{BaSO}_{4} )
( c )
in presence of anhydrous
[
mathrm{AlCl}_{3}
]
D.
and conc. HCl
12
509 Which of the following compounds will give acetic acid with ( boldsymbol{K} boldsymbol{M} boldsymbol{n} boldsymbol{O}_{4} / boldsymbol{H} oplus / boldsymbol{Delta} ? )
A ( cdot C H_{3}-C H O )
в. ( C H_{3}-C H=C H-C H_{3} )
c. ( C H_{3}-C=C-C H_{3} )
D. ( C H_{2} C H_{2} O H )
12
510 Phenoxide ion has ( _{-} ) number
of resonating structures than benzoate ion and benzoic acid is a
acid than phenol.
A. more, stronger
B. more, weaker
c. less, stronger
D. less, weaker
12
511 Which one of the following contains either aldehyde or ketones in it? This question has multiple correct options
A. vanillin
B. Acetone
c. Camphor
D. Formalin
12
512 The missing reagent in the sequence
of synthesis shown is:
A. bromocyclopentane
B. 1,5 -dibromopentane
C. 1,4 -dibromobutane
D. 1,1 -dibromocyclopentane
12
513 What is meant by the Semicarbazone? Give an example of reaction(with mechanism) showing its formation. 12
514 The structure of 6-hydroxyheptanal is:
( mathbf{A} cdot C H_{3}-C H_{2}-C H(O H)-C H_{2}-C H_{2}-C H_{2}- )
( C H O )
B. ( C H_{3}-C H_{2}-C H_{2}-C H(O H)-C H_{2}-C H O )
( mathbf{c} cdot C H_{3}-C H(O H)-C H_{2}-C H_{2}-C H_{2}-C H O )
D. ( C H_{3}-C H(O H)-C H_{2}-C H_{2}-C H_{2}-C H_{2}- )
( C H O )
12
515 Identify the compounds ( A, B ) and ( C )
(i) ( boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{O} boldsymbol{H} quad boldsymbol{P C l}_{5} quad boldsymbol{A} quad boldsymbol{K} boldsymbol{C} boldsymbol{N} )
(ii) ( boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{C O O H} quad boldsymbol{S O C l}_{2}, boldsymbol{A} quad boldsymbol{N H}_{3} )
12
516 A major constituent of vinegar is:
A. Methanoic acic
B. Benzoic acid
c. Ethanoic acid
D. Picric acid
12
517 2-Acetoxybenzoic acid is called:
A . paracetamol
B. aspirin
c. heroine
D. mordant dye
12
518 What is the correct order of acidity in
the given compounds?
A. ( I<I I<I I I )
В. ( I I I<I<I I )
c. ( I I<I<I I I )
D. III ( <I I<I )
12
519 5
0
8
8
12
520 Which statements is/are correct?
dl or ( (pm) ) or raccmic
(A)
This question has multiple correct options
A. Compound
(B) is meso- and (C) is racemic-1, 2dimethyl cyclohexane
B. Compound
(B) is racemic-and (C) is meso-1, 2dimethyl cyclohexane
c. compound
(D) is 1,2 -dimethyl cyclohexane
D. Octane-2,7-dione is obtained on reductive ozonolysis of compound (D)
12
521 Compound ( B ) is:
A.
в.
(B)
( c )
D.
12
522 Starting with 1- butyne, how could you make 3-hexanone? 12
523 Draw the structures of the following
compounds.
(i) 3-Methylbutanal
(ii)
Nitropropiophenone
(iii) p-Methylbenzaldehyde 4-Methylpent-3-en-2-one
(v) 4 -Chloropentan-2-one
( (mathbf{v} mathbf{i}) )
Bromo-4-phenylpentanoic acid
(vii) p,p-Dihydroxybenzophenone Hex-2-en-4-ynoic acid
12
524 ( C_{6} H_{6}+B r_{2} stackrel{F e}{rightarrow} C_{6} H_{5} B r+H B r ) is an
example for:
A. free radical substitution reaction
B. electrophilic substitution reaction
c. nucleophilic addition reaction
D. nucleophilic substitution reaction
12
525 The IUPAC name of cinnamaldehyde is:
A . (2E)-3-phenylprop-2-enal
B. (2Z)-1-phenylprop-1-enal
C . ( (2 E) ) -1-phenylprop-2-enal
D. (2Z)-3- phenylprop-1-enal
12
526 Q. 26 Oxidation of ketones involves carbon-carbon bond cleavage. Name the
products formed on oxidation of 2, 5-dimethylhexan-3-one.
12
527 ( boldsymbol{C H}_{3} boldsymbol{C O C l}+boldsymbol{H}_{2} frac{boldsymbol{P d} / boldsymbol{B a S O}_{4}}{boldsymbol{}} )
( boldsymbol{C H}_{3} boldsymbol{C H O}+boldsymbol{H C l} )
Which of the following option is correct about the given reaction?
A. Aldol condensation
B. Clemmensen reduction
c. Rosenmund reduction
D. carbylamine reaction
12
528 Ketones ( left(boldsymbol{R}_{1} boldsymbol{C O} boldsymbol{R}_{2}right) ; boldsymbol{R}_{1}=boldsymbol{R}_{2}= ) alkyl
group, can be obtained in one step by:
12
529 Explain the preparation of carboxylic
acids from Grignard reagent. Give
equation.
12
530 How many ( H C l ) molecules are lost
when Acetyl chloride is converted to Ethanal by Rosenmund reduction?
12
531 ( 0.40 g ) of an organic compound ( (A) )
(Molecular formula ( C_{5} H_{8} O ) ) reacts
with ( x ) mole of ( C H_{3} M g B r ) to liberate
( 224 m L ) of a gas at STP.With excess of
( boldsymbol{H}_{2},(boldsymbol{A}) ) gives pentan-1-ol. The correct structure of ( (A) ) is:
A ( cdot C H_{3}-C equiv C-C H_{2}-C H_{2}-O H )
в. ( C H_{3}-C H_{2}-C equiv C-C H_{2}-O H )
c. ( H-C equiv C-C H_{2}-C H_{2}-C H_{2}-O H )
D. ( H-C equiv C-C H_{2}-C H-C H_{3} )
12
532 Assertion
Rate of nitration is ( C_{6} H_{6} simeq C_{6} D_{6} simeq )
( boldsymbol{C}_{boldsymbol{6}} boldsymbol{T}_{boldsymbol{6}} )
Reason
Formation of intermediate is rate
determining step in nitration of
benzene, not the breaking of ( boldsymbol{C}-boldsymbol{H} ) or
( C-D ) bond
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct
12
533 The IUPAC name of the compound
( boldsymbol{C H}_{3}-boldsymbol{C H}left(boldsymbol{C H}_{3}right)-boldsymbol{C H}left(boldsymbol{C H}_{3}right)- )
( boldsymbol{C H}=boldsymbol{C H}-boldsymbol{C H}_{2}-boldsymbol{C H O} ) is:
A. 5,6 -Dimethylhept- – -en-1-al
B. 2,3-Dimethyl-4-en-7-al
c. 5,6 -Dimethylhept- – -ene-1-al
D. 5,6-Isopropylpent-3-ene-1-al
12
534 when compound ( mathbf{C} ) is treated with
( boldsymbol{B} boldsymbol{r}_{2} / boldsymbol{C} boldsymbol{C l}_{4} )
A. a meso dibromide is formed.
B. four stereo-isomers of dibromides are fromed.
C . racemic mixture of dibromides are formed.
D. a pair of enantiomers of dibromides in unequal amount is formed.
12
535 Give one chemical test each to
distinguish between the following pairs of compounds:
(1) Ethanol and acetic acid
(2) Acetaldehyde and benzaldehyde
12
536 Compound ( C_{4} H_{8} O_{2} ) exists in various structures as shown:

Which statement(s) is/are correct?
(1)
(II)
( (mathrm{III}) )
( (mathrm{IV}) )
A. compounds land II give iodoform test: Compound gives white turbidity on heating with Lucas reagent while compound II reduces Tollens reagent
B. compound III gives silver mirror with ( left[A gleft(N H_{3}right)_{2}right] ) and does not react with NaoBr
C. compound IV on acid hydrolysis gives ( C_{2} H_{5} ) COOH and MeOH
D. compound v on heating is decarboxylated to propane

12
537 Consider the following reaction. ( o^{16} )
( boldsymbol{C H}_{3}-stackrel{|}{boldsymbol{C}}-boldsymbol{O}^{18}-boldsymbol{C}_{2} boldsymbol{H}_{5}+ )
( boldsymbol{H}_{2} boldsymbol{O}^{16} frac{boldsymbol{H} boldsymbol{e} boldsymbol{a} boldsymbol{t}}{boldsymbol{H}^{+}} )
The products formed in the reaction are:
( A )
( C H_{3}-stackrel{vartheta^{16}}{C}-O^{16} H ) and ( C_{2} H_{5} O^{18} H )
В.
[
C H_{3}-C^{mid 6}-O^{18} H text { and } C_{2} H_{5} O^{16} H
]
( c )
( C H_{3}-stackrel{vartheta^{16}}{C}-O^{16} H ) and ( C_{2} H_{5} O^{16} H )
D. ( C H_{3}-stackrel{vartheta_{1}^{prime 8}}{C}-O^{18} H ) and ( C_{2} H_{5} O^{18} H )
12
538 ( C H_{3} C H_{2} O H stackrel{O}{longrightarrow} C H_{3} C H O stackrel{O}{longrightarrow} )
( C H_{3} C O O H )
Give the oxidizing agent in the given reactions
12
539 State the oxidation number of carbonyl carbon in methanal and methanoic acid
respectively:
A. 0 and 0
B. 0 and +2
( c cdot+1 ) and +2
D. +1 and +3
12
540 Write structural formulae of the organic
compounds ( ^{prime} boldsymbol{A}^{prime},^{prime} boldsymbol{B}^{prime},^{prime} boldsymbol{C}^{prime} ) and ( ^{prime} boldsymbol{D}^{prime} ) in the
following sequence of reaction. ( boldsymbol{A}^{prime}+boldsymbol{C} boldsymbol{H}_{3} boldsymbol{M} boldsymbol{g} boldsymbol{B} boldsymbol{r} stackrel{boldsymbol{H}_{2} boldsymbol{O}}{longrightarrow} )
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}(boldsymbol{O H}) boldsymbol{C H}_{3} frac{c o n c . boldsymbol{H}_{2} boldsymbol{S O}_{4}}{boldsymbol{1}} )
( ^{prime} boldsymbol{B}^{prime} stackrel{boldsymbol{B} boldsymbol{r}_{2}}{longrightarrow}^{prime} boldsymbol{C}^{prime} stackrel{text {alc.} boldsymbol{K O H}}{longrightarrow} boldsymbol{D}^{prime} )
12
541 A triene is treated with ozone followed
by zinc in acetic acid to give the following three products. What is the structure of the triene
( A )
в.
( c )
D.
12
542 Which of the following has highest boiling point?
A. ( C_{2} H_{5} O H )
в. ( C H_{3} ) СООН
c. ( C H_{3} ) СОСН ( _{3} )
D. ( C_{2} H_{6} )
12
543 Name the following compound according to the IUPAC system or
nomenclature:
( boldsymbol{C H}_{3} boldsymbol{C H}left(boldsymbol{C H}_{3}right) boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{C H O} )
12
544 Carbonyl group of aldehyde and ketone contain
A. carbon and oxygen
B. carbon and nitrogen
c. carbon and sulphur
D. none of these
12
545 Which of the following substance exists as a gas at room temperature?
A. Formaldehyde
B. Para formaldehyde
c. Trioxane
D. All of the above.
12
546 What is the action of the following reagent on ethanoic acid?
( boldsymbol{L} boldsymbol{i} boldsymbol{A l} boldsymbol{H}_{4} / boldsymbol{H}_{3} boldsymbol{O}^{+} )
12
547 Determine the major product of the
given reaction:
12
548 The compound that neither forms semicarbazone nor oxime is:
A. ( H C H O )
в. ( C H_{3} )СОСН( _{3} )
с. ( C H_{3} C H O )
D. ( C H_{3} C H_{2} C H_{2} N H_{2} )
E ( cdotleft(C H_{3}right)_{2} C H C H O )
12
549 Oxime is the product of the following:
A. ( >C=O+ ) hydrazine
B. ( >C=O+ ) Phenylhydrazine
( c )
[
-mathrm{C}-mathrm{O} mathrm{H}+mathrm{SOCl}_{2}
]
D. >CO + Hydroxylamine
12
550 Which reagent is used in
Rosenmund reduction?
( mathbf{A} cdot H_{2} / P d-B a S O_{4} )
( mathbf{B} cdot L i A I H_{4} )
( mathbf{c} cdot N H_{2}-N H_{2} / K O H / C H_{2} O H-C H_{2} O H )
( mathbf{D} cdot Z n-H g / H C l )
12
551 Q. 12 Which of the following alkenes on ozonolysis give a mixture of ketona
only?
(a) CH-CH=CH-CH, (b) CH–C-CH=CH,
CH,
CH₃
(d) (CH3)2C=C
CH3
CH3
12
552 Question 2. Write a test to differentiate between pentan-2-one and
pentan-3-one.
12
553 The oxidation of toluene to
benzaldehyde by chromyl chloride is called:
A. Etard reaction
B. Riemer – Tiemann reaction
c. Wurtz reaction
D. Cannizzaro’s
12
554 In deodorant soaps, the additive added
is:
A. glycerol
B. stearic acid
c. potassium bicarbonate
D. 3,4,5-tribromo salicylaldehyde
12
555 -CHO group is
A. ( + ) ME and tle group
B. -ME and -IE group
C . +ME and -IE group
D. -ME and +IE group
12
556 Study the given reaction and identify the process which is carried out.
[
left.rangle mathrm{c}=mathrm{O}+mathrm{NaHSO}_{3} rightarrow lambda_{mathrm{SO}_{3} mathrm{Na}}^{/ mathrm{OH}} frac{mathrm{Na}_{2} mathrm{CO}_{3}}{rightarrow}rightrangle mathrm{C}=0
]
A. It is used for purification of aldehydes and ketones
B. It is used to distinguish aldehydes from ketones
c. It is used to prepare cyclic aldehydes and ketones
D. It is used to study polar nature of aldehydes and ketones
12
557 The correct name of the given
compound:
( boldsymbol{C H}_{3}-underset{boldsymbol{O} boldsymbol{H}}{boldsymbol{C}}-boldsymbol{C O O H} )
A. glycoxal
B. lactic acid
c. glycine
D. glyceraldehyde
12
558 Which of the following reactions will
give ( alpha- ) hydroxy acid as a product?
( mathbf{A} cdot C H_{3}-C H O frac{(i) N a C N / H C l}{(i i) H_{2} O / H^{oplus} / Delta} )
в. ( C H_{3}-C H O+B r-C H_{2}- )
( operatorname{COOC}_{2} H_{5} frac{(i) Z_{n}}{(i i) N H_{4} C l / H O H} )
( (i i i) H O H / H^{oplus} / Delta )
c. ( C H_{3}- ) COOH ( stackrel{text { NaOH } / text { НОН }}{longrightarrow} )
D. All of these
12
559 Reduction of acetyl chloride with ( H_{2} ) in
presence of Pd and ( B a S O_{4} ) gives :
A. ( C H_{3} C O C H_{3} )
в. ( C_{2} H_{5} O H )
с. ( C H_{2} ) СООН
D. ( C H_{3} C H O )
12
560 Which of the following is used for purification of aldehydes from impurities?
( mathbf{A} cdot H C N )
в. ( operatorname{NaHSO}_{3} )
c. ( C H_{3} M g B r )
D. ( N a_{2} S O_{4} )
12
561 Number of intramolecular aldol
condensation product is:
[
begin{array}{c}
stackrel{0}{|} \
mathrm{CH}_{3}-mathrm{C}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{CH}_{2}-mathrm{I}-mathrm{H} \
mid mathrm{KOH}
end{array}
]
( A )
B.
( c cdot 3 )
( D )
12
562 ( R-C H_{2}-C H_{2} O H ) can be converted
into ( R C H_{2} C H_{2} C O O H ) by the following
sequence of steps:
( mathbf{A} cdot P B r_{3}, K C N, H_{2} / P t )
B. ( P B r_{3}, K C N, H_{3} O^{+} )
c. ( H C N, P B r_{3}, H_{3} O^{+} )
D. ( K C N, H_{3} O^{+} )
12
563 Which of the following presents the correct order of the acidity in the given compounds?
A. ( F C H_{2} C O O H>C l C H_{2} C O O H>B r C H_{2} C O O H> )
( C H_{3} C O O H )
в. ( C H_{3} C O O H>B r C H_{2} C O O H>C l C H_{2} C O O H> )
( F C H_{2} C O O H )
c. ( F C H_{2} C O O H>C H_{3} C O O H>B r C H_{2} C O O H> )
( _{C l C H_{2} C O O H} )
D. ( B r C H_{2} C O O H>C l C H_{2} C O O H>F C H_{2} C O O H> )
( C H_{3} C O O H )
12
564 Q. 3 The correct order of increasing acidic strength is –
(a) phenol < ethanol < chloroacetic acid < acetic acid
(b) ethanol < phenol < chloroacetic acid < acetic acid
(c) ethanol < phenol < acetic acid < chloroacetic acid
(d) chloroacetic acid < acetic acid < phenol < ethanol
otoblo con
12
565 ( boldsymbol{O} )
( boldsymbol{P h}-boldsymbol{C H}_{2}-stackrel{|}{boldsymbol{C}}-boldsymbol{O H} )
( (A) ) is :
A. ( P h-C O_{2} H )
в. ( P h-C H_{2}-O H )
c. ( P h-C H_{3} )
D.
12
566 Which of the following represents the correct order of the acidity in the given compounds?
A ( cdot F C H_{2} C O O H>C H_{3} C O O H>B r C H_{2} C O O H> )
( mathrm{ClCH}_{2} mathrm{COOH} )
в. ( B r C H_{2} C O O H>C l C H_{2} C O O H>F C H_{2} C O O H> )
( C H_{3} C O O H )
c. ( F C H_{2} C O O H>C l C H_{2} C O O H>B r C H_{2} C O O H> )
( C H_{3} C O O H )
D. ( C H_{3} C O O H>B r C H_{2} C O O H>C l C H_{2} C O O H> )
( F C H_{2} C O O H )
12
567 The strongest acid among the following acids is :
( mathbf{A} . quad H C O O H )
в. ( C H_{3} )СООН
c. ( left(C H_{3}right)_{2} C H C O O H )
D. ( left(C H_{3}right)_{3} C C O O H )
12
568 y are carboxylic acids more acidic than alcohols or phenols although
all of them have hydrogen atom attached to a oxygen atom -0-H)?
Ans. Carboxylic acido a
12
569 Which of the following set of reaction
( R-C-O H ) as the can not prepare
final product?
A ( cdot R-M g X+O=C=O frac{d r y cdot e t h e r}{longrightarrow} A frac{H_{3} O^{+}}{longrightarrow} )
в. ( R-C N frac{S nleft(l_{2}+H C lright.}{(i i) H_{2} O / H^{+}} )
( c )
D. ( C H_{3}left(C H_{2}right)_{8} C H_{2} O H frac{C r O_{3}}{H_{2} S O_{4}} )
12
570 Structural isomerism and
stereoisomerism should be considered
when answering this question. The molecular formula of compound ( x )
is ( C_{5} H_{12} O )
Compound ( X: )
reacts with alkaline aqueous iodine
can be dehydrated to form two alkenes only. What could be the identify of compound
X?
A. ( C H_{3} C H_{2} C Hleft(C H_{3}right) C H_{2} O H )
B. ( C H_{3} C H_{2} C H(O H) C H_{2} C H_{3} )
( mathbf{c} cdotleft(C H_{3}right)_{2} C H C H(O H) C H_{3} )
D. ( C H_{3} C H_{2} C H_{2} C H(O H) C H_{3} )
12
571 Find a wrong statement from the given
statements.
A. oxalic acid is used for making metal polish
B. benzoic acid is used in manufacture of dyes
C. oxalic acid in form of ferrous potassium oxilate used as developer in photography
D. benzoic acid is used for making metal polish
12
572 (D) and (C) are:
A. Isomeric alkane
B. Isomeric alkene
C. Not isomers
D. ( (C) ) is an alkene and (D) is salt
12
573 Q. 62 Benzoic acid is an organic compound. Its crude sample can be purified
by crystallisation from hot water. What characteristic differences in the
properties of benzoic acid and the impurity make this process of
purification suitable ?
12
574 Which of the following is not a
monovalent group?
A. Aldehydic
B. Ketonic
c. carboxylic
D. Hydroxy
12
575 The acid which contains both ( -O H ) and
( – ) COOH groups is:
A. phthalic acid
B. adipic acid
c. glutaric acid
D. salicylic acid
12
576 Etard reaction in the following is:
A. oxidation of toluene to benzaldehyde by chromylchloride
B. oxidation of toluene to benzaldehyde by alkaline ( K M n O_{4} )
C . dry distillation of calcium benzoate
D. reaction of benzene with ( C l_{2} ) in the presence of UV
light
12
577 Citric acid is present in lemon. Apple contains:
A . lactic acid
B. malic acid
c. tartaric acid
D. oxalic acid
12
578 Ethanoic acid is a member of
homologous series with general
formula ( C_{n} H_{2 n+1} C O O H )
i) Name the series and give its
functional group.
ii) Give the molecular formula and the
common name of ethanoic acid.
iii) If this compound is mixed with
ethanol in the presence of Conc. ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} ) a sweet smelling compound is formed. Give the equation and name the compound.
iv) Ethanoic acid reacts with
carbonates. Which gas is liberated
during this reaction?
v) Write the balanced equation for the
reaction of ethanoic acid with
carbonate.
vi) Your grandmother has prepared mango pickle. What has she added to preserve it for a long time?
12
579 Draw the structural formula for each of
the following:
1. 2,3 – dimethyl butane
2. Diethyl ether
3. Propanoic acid.
12
580 Consider the following reaction:
The m-isomer of D and E is called:
A. Phthalic acid
B. Isophthalic acid
c. Terephthalic acid
D. None
12
581 Product ( Q ) is:
( A ). An amide
B. An amine
C. Nitro compound
D. Nitrite Compound
12
582 toppr
Q Type your question_
( A )
( B )
( c )
D.
12
583 Statement- – I: The addition of ammonia
derivatives on carbonyl compound is carried in weakly acidic medium. Statement- II : In weakly acidic medium attacking nuclephile is also protonated.
A. Both the statements are true and statement-ll is the correct explanation of statement-I.
B. Both statements are true but statement-ll is not the correct explanation of statement-I.
c. statement-l is true but statement-ll is false
D. Statement-I is false but statement-II is true.
12
584 Correct arrangement of the following
acids in correct ( boldsymbol{K}_{3} ) order is :
( (boldsymbol{I}) boldsymbol{H} mathbf{3} boldsymbol{N} oplus boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C O O H}(boldsymbol{I I}) boldsymbol{N C C H} mathbf{2 C} )
A ( .|>||>|||>|V| )
( V )
B. || >|>॥|> |V
c. ( |>|||>||>mid V )
D. IV>||| > || > |
12
585 The product (B) is:
A. Benzaldehyde
B. Benzoic acid
C. Phenylacetic acid
D. None of the above
12
586 ( d )
( d )
( d )
( x )
12
587 Which of the following does not uses formaldehyde in its preparation?
A. Melamine polymer
B. Bakelite
c. РнВу
D. preservation of biological specimens
12
588 The products of ( (A) ) on ozonolysis
followed by reduction with LAH are:
( mathbf{A} )
( B )
( C )
( D )
12
589 n-Butylbenzene on oxidation with hot
alkanine ( K M n O_{4} ) gives:
A. Benzoic acid
B. Butanoic acid
c. Benzyl alcohol
D. Benzaldehyde
12
590 Pinacolone is:
A. 2,3 -dimethyl- 2,3 -butanediol
B. 3, 3-dimethyl-2-butanone
C. 1 -phenyl-2-propanone
D. 1,1 -diphenyl-1, 2-ethandiol
12
591 The product formed in the given
reaction will react with ( x ) molecules of
( C H_{3} M g B r . ) What is ( x ? )
12
592 What is the formula of acrolein?
A. ( C H_{2}=C H-C N )
В. ( C H_{2}=C H-C H O )
c. ( C H_{2}=C H-C O O H )
D. ( C H_{2}=C H-C O N H_{2} )
12
593 ( H B r ) fails to give addition products
with carbonyl compounds. Is the above statement true?
A. True
B. False
12
594 is a transparent liquid that is highly flammable.
A. Uranium
B. Methane
c. Ethane
D. Acetone
12
595 Among the following compounds, identify total number of compounds
that liberate ( C O_{2} ) gas on reaction with
( N a H C O_{3} )
12
596 45. Which one of the following is
found in Vinegar ?
(1) Acetic acid
(2) Propionic acid
(3) Formic acid
(4) Butyric acid
12
597 ( C_{4} H_{8} O_{2} ) represents:
( A ). an acid only
B. an ester only
c. an ketone only
D. an acid and an ester also
12
598 Which of the following compounds are not soluble in water?
A. Formaldehyde
B. Acetaldehyde
c. Acetone
D. None of the above
12
599 (D) ( frac{(i) N H_{2} N H_{2}}{(i i) C_{2} H_{5} O N a} mathrm{CH}_{3} mathrm{CH}_{2} mathrm{CH}_{3} )
( D ) in the given reaction is:
A. Iso-propyl alcohol
B. Butanaldehyde
c. Acetone
D. None of these
12
600 Write the IUPAC names of the following ketone or aldehyde. If possible, give common name(s) also.
( mathrm{Ph}-mathrm{CH} equiv mathrm{CH}-mathrm{CHO} )
12
601 Propose structure/structures for the
hydrocarbon that gives the following products on oxidative cleavage by
( boldsymbol{K} boldsymbol{M} boldsymbol{n} boldsymbol{O}_{4} / boldsymbol{H}^{oplus} )
12
602 a) Explain Rosenmund reduction with
equation
b) How does propanone ( left(C H_{3} C O H_{3}right) ) reacts with hydrazine? Give equation.
c) Name an oxidising agent used in the Etard’s reaction.
12
603 Which of the following is correct?
A. Formic acid is used in medicine for the treatment of
gout
B. Propanoic acid is used as an antiseptic in the preservation of fruit juice
C. Ethanoic acid is a coagulating agent in rubber industry
D. None of these
12
604 Tartaric acid is a colourless, crystalline acid found in fruit juices, like that of grapes. Some of its uses are mentioned
here. Pick the false one:
A. In photography
B. In cosmetics
c. In dyeing of cloth
D. In medicines
12
605 In the sequence of reaction ( C_{2} H_{2} frac{H_{2} S O_{4}}{H g S O_{4}} A stackrel{[O]}{longrightarrow} B ) The compound
B is:
A. ethanoic acid
B. propanone
c. ethanol
D. methanal
12
606 ( C H_{3} C H_{2} C O O H frac{B r / R e d p}{Delta} )
( (A) stackrel{a l c . N H_{3}}{ } B )
The final product (B) in the above reaction is
A. Alanine
B. Pyruvic acid
c. citric acid
D. Lactic acid
12
607 Draw the structure of the following compound:
4-Chloropentan-2-one
12
608 The reagents ( X ) and ( Y ) are respectively:
A ( cdot X=C H_{3} C O C l / A l C l_{3}, Y=K M n O_{4} / O H^{Theta} / Delta )
(acidification)
B. ( X=C H_{3} C H_{2} C l / A l C l_{3}, Y=C r O_{3} / H^{+} / Delta )
C. ( X=C H_{3} C O C l / A l C l_{3}, Y=I_{2} / N a O H, ) (acidification)
D. ( X=K M n O_{4} / O H^{Theta} / Delta, ) (acidification), ( Y= )
( C H_{3} C H_{2} C l / A l C l_{3} )
12
609 What are ( X ) and ( Y ? )
( |+N B S quad longrightarrow quad X frac{(i) M g / text { ether }}{(i i) C_{2}_{2}:} Y Y )
A. ( x: 1 ) -bromo cyclohex- 1 -ene ( Y ) : Cyclohex- 1 -enoic acid
B. ( x: 1- ) bromo cyclohex-2-ene Y: Cyclohex-2-enal
c. ( x: 3 ) -bromo cyclohexene ( Y ) : Cyclohex-2-enoic acid
D. None of these
12
610 Which of the following reacts with water to form very stable product?
A. ( C H_{3} C l )
в. ( C C l_{4} )
c. ( C C l_{3} C H O )
D. ( C H_{2} C l C H_{2} C l )
12
611 10.7 Which products is formed when the compound
with concentrated aqueous KOH solution?
CHC is treated
CHO
cho-OR +
CH OH
O
th
12
612 Formaldehyde is used:
A. for preserving biological specimens
B. for the preparation of urotropine
C. in the manufacture of bakelite
D. all of these
12
613 The products for the following reactions
are:
(i) ( C H_{3}-C_{H}^{B r}-C H_{2}-C H_{3}+ )
alc. ( boldsymbol{K O H} rightarrow boldsymbol{X} )
(ii) ( boldsymbol{C H}_{3}-underset{_{mathrm{I}}^{mathrm{CH}}}{boldsymbol{H}}-boldsymbol{C H}=boldsymbol{C H}_{2} stackrel{boldsymbol{O}_{3}}{longrightarrow} )
( boldsymbol{Y}+boldsymbol{Z} )
A. ( X=left(C H_{3}right)_{2} C=C H_{2}, Y=C H_{3} C H_{2} C H O, Z= )
( C H_{3} C H_{2} C H O )
B. ( X=C H_{2}=C H_{2}, Y=C H_{3} C H O, Z=C H_{3} C O O H )
c. ( X=C H_{3}-C H=C H-C H_{3}, Y=C H_{3}-C H )
D. ( X=C H_{3}-C H=Cleft(C H_{3}right)_{2}, Y=H C H O, Z= )
( C H_{3} C H O )
12
614 What is the common name of
( mathbf{C H}_{3} mathbf{C O O H} ? )
12
615 When 3 -hydropropanal is treated q with methylmagnesium iodide in equimolar amounts, the most probable product
will be:
( A )
B.
( c )
D. There will be no net reaction
12
616 Which of the following reagent is used for the separation of acetaldehyde from acetophenone?
A. ( N H_{2} O H )
B. ( N a O l )
c. Tollen’s reagent
D. ( C_{6} H_{5} N H N H_{2} )
12
617 ( frac{sigma}{sigma} )
( frac{sigma}{sigma} )
( sigma )
12
618 Which statement is correct?
A. Fumaric acid is stronger than Maleic acid.
B. Maleic acid is stronger than fumaric acid
C. Both (a) and ( b)
D. None of the above
12
619 Draw the structure of the following
compound:
p,p’-Dihydroxybenzophenone
12
620 (1)
Convert I to II.
12
621 Although phenoxide ion has more number of resonating structures than carboxylate ion, carboxylic acid is a stronger acid than phenol. Why? 12
622 Which of the following orders is true
regarding the acidic nature of ( C ) OOH?
A. Formic acid ( > ) Acetic acid ( > ) Propanoic acid
B. Formic acid ( > ) Acetic acid ( < ) Propanoic acid
C. Formic acid < Acetic acid < propanoic acid
D. Formic acid Propanoic acid
12
623 0.49 Write down functional isom
formula C2H60. Wh
* down functional isomers of a carbonyl compound with molecular
mula C3H60. Which isomer will react faster with HCN and why? Explain
e mechanism of the reaction also. Will the reaction lead to the
completion with the conversion of whole reactant into product at
reaction conditions? If a strong acid is added to the reaction mixture
what will be the effect on concentration of the product and why?
Sara
12
624 The boiling point of aldehyde and
ketones are:
A. higher than those of alcohols of similar molecular
masses
B. lower than those of alcohols of similar molecular
masses
C. similar to the alcohols of similar molecular masses
D. similar to the alcohol of different molecular mass
12
625 Assertion
STATEMENT-1: 2,2-dimethylpropanal
undergoes cannizzaro reaction with
concentrated ( N ) a ( O H )
Reason
STATEMENT-2: Cannizzaro reaction is a
disproportionation reaction.
A. STATEMENT-1 is True, STATEMENT-2 is True; STATEMENT-2 is a correct explanation for STATEMENT-
1
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
626 ( frac{sqrt{0}}{frac{6}{x}} ) ( frac{sqrt{2}}{2} ) 12
627 Which of the following is the stable enol form of ( 1,3- ) cyclohexanedione?
( A cdot i )
B. i i
c. iii
D. iv
( E )
12
628 The IUPAC name for the compound
( boldsymbol{C H}_{3}-boldsymbol{C}left(boldsymbol{C H}_{3}right)=boldsymbol{C H}-boldsymbol{C O O H} ) is:
A. 2-Methyl-2-butenoic acid
B. 3-Methyl-3-butenoic acid
c. 3-Methyl-2-butenoic acid
D. 2-Methyl-3-butenoic acid
12
629 Position of double bond in alkenes can
be identified by:
A. bromine water
B. ammoniacal silver nitrate solution
c. ozonolysis
D. Baeyer’s test
12
630 ( frac{ln x}{x^{2}} )
( frac{d^{2}}{d^{2}} )
12
631 The correct order of reativity of PhMg Br towards given compounds. ( P h-stackrel{0}{C}-P h quad C H_{3}-stackrel{0}{C}-H C H_{3}- )
( stackrel{0}{N}-C H_{3} )
(1)
(11)
A ( cdot(I)>(I I)>(I I I) )
B. ( (I I I)>(I I)>(I) )
c. ( (I I)>(I I I)>(I) )
D. ( (I)>(I I I)>(I I) )
12
632 Compound X has the molecular formula
( boldsymbol{C}_{3} boldsymbol{H}_{boldsymbol{6}} boldsymbol{O}_{3} )
Heating X under reflux with acidified
( K_{2} C r_{2} O_{7} ) forms ( H O_{2} C C O C O_{2} H )
Reacting ( X ) with ( N a B H_{4} ) forms
( boldsymbol{H} boldsymbol{O} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}(boldsymbol{O} boldsymbol{H}) boldsymbol{C} boldsymbol{H}_{2} boldsymbol{O} boldsymbol{H} )
What is a possible structural formula
for ( X ? )
1. ( boldsymbol{H} boldsymbol{O} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{O}_{2} boldsymbol{H} )
2. ( boldsymbol{H} boldsymbol{O} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C H}(boldsymbol{O} boldsymbol{H}) boldsymbol{C H O} )
3. ( boldsymbol{H} boldsymbol{O} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C O C H}_{2} boldsymbol{O H} )
A. 1,2 and 3 are correct
B. 1 and 2 only are correct
c. 2 and 3 only are correct
D. 1 only is correct
12
633 An alkene ( Aleft(C_{10} H_{20}right) ) on oxidative
ozonolysis yields two molecules of
( left(C_{5} H_{10} Oright) B . B ) on treatment with
( boldsymbol{L} boldsymbol{i} boldsymbol{A} boldsymbol{I} boldsymbol{H}_{4} ) yields ( mathbf{C}left(boldsymbol{C}_{5} boldsymbol{H}_{12} boldsymbol{O}right) ) which can’t
be resolved into enantiomers. Which of
following is correct?
A. A: 3,4-diethyl-3-hexene
B. B: 3-pentanone
c. ( c: 3 ) -pentanol
D. All of them are correct
12
634 Statement- ( mathrm{I}:left(boldsymbol{C} boldsymbol{H}_{3}right)_{3} boldsymbol{C} boldsymbol{C O C}left(boldsymbol{C H}_{3}right)_{3} )
and acetone can be distinguished by
the reaction with ( N a H S O_{3} )

Statement- ( |: S O_{3}^{-2} ) is the nucleophile in bisulphate addition.
A. Both the statements are true and statement-ll is the correct explanation of statement-
B. Both statements are true but statement-ll is not the correct explanation of statement-
c. statement-l is true but statement-ll is false
D. Statement-I is false but statement-II is true

12
635 Pyruvic acid is obtained by:
A. oxidation of acetaldehyde cyanohydrin
B. oxidation of formaldehyde cyanohydrin
c. oxidation of acetone cyanohydrin
D. None of the above
12
636 Which among the following compounds
is used as selective weed killer?
A . Picric acid
B. 2, 4-dichlorophenoxy acetic acid
c. 2,4,6 -trichlorophenoxy acetic acid
D. Salol
12
637 How many types of substituted alcohols (stereoisomers not considered) are
possible in the given reaction?
A. One
B. Two
c. Three
D. Four
12
638 ( left(boldsymbol{C H}_{3}right)_{2} boldsymbol{C H}-boldsymbol{C}- )
( boldsymbol{C H}left(boldsymbol{C H}_{3}right)_{2} frac{left(boldsymbol{C H}_{3}right)_{2} boldsymbol{C H} boldsymbol{M} boldsymbol{g} boldsymbol{B r}}{boldsymbol{H}_{3} boldsymbol{O}^{+}}[boldsymbol{N}]+[boldsymbol{O}] )
( overbrace{H_{2} O}^{left(C H_{3}right)_{2} C H-L i}[mathrm{M}] )
Then [M] is:
( mathbf{A} cdot[mathrm{M}] ) is ( C H_{3}-C H=C H_{2} ) while ( [mathrm{N}] ) and ( [mathrm{O}] ) are
( left[left(C H_{3}right)_{2} C Hright]_{3} ) СОН апа ( C H_{3}-C H=C H_{2} )
B . ( [M] ) is ( left(C H_{3}right)_{2} C H-C H-C Hleft(C H_{3}right)_{2} ) while ( [N] ) and
( [O] operatorname{are}left(C H_{3}right)_{2} C H O H ) and ( C H_{3}-C H=C H_{2} )
c. ( [M] ) is ( left(C H_{3}right)_{2} C H-_{text {। }}^{C H}-C Hleft(C H_{3}right)_{2} ) while ( [N] ) and
( [O] operatorname{are}left(left(C H_{3}right)_{2} C Hright)_{3} C-O H ) and ( C H_{3}-C H=C H_{2} )
D – ( [M] ) is ( left[left(C H_{3}right)_{2} C Hright]_{3} C-O H ) while ( [N] ) and ( [O] ) are
( -S H )
( left(C H_{3}right)_{2} C H-C H-C Hleft(C H_{3}right)_{2} ) and ( C H_{3} )
( _{O H} )
( C H_{2} )
12
639 Above compound is hydrated maximum
at which position?
( A )
B. 2
( c .3 )
D. equal
12
640 In section ( A, ) there are some organic
compounds and in section ( mathrm{B} ), their uses are mentioned. Match the correct
options.
Section A Section B
1. Ethanol
(a) Nail polish remover
2. Formalin
(b) To have sour taste in food
3. Acetone
(c) In fragrant materials like perfumes
4. Ethanoic
(d) To preserve dead bodies Acid
( A cdot(1-c),(2-d),(3-a),(4-b) )
B. (1-a), (2-d), (3-c), (4-b)
C. ( (1-b),(2-a),(3-d),(4-c) )
D. (1-d), (2-c), (3-b), (4-a)
12
641 Chloroacetic acid is a stronger acid than acetic acid. Give one reason. 12
642 In the given transformation, which of
the following is the most appropriate
reagent?
A. ( N H_{2} N H_{2}, O H )
в. ( Z n-H g / H C l )
c. ( N a, ) liq. ( N H_{3} )
D. ( N a B H_{4} )
12
643 – 40 Match the reactions given in Column I with the suitable reagents give
in Column II.
Column 1
Column Il
(Reactions)
(Reagents)
A. Benzophenone
1. LiAIHA
Diphenylmethane
B. Benzaldehyde →
2. DIBAL-H
1-phenylethanol
C. Cyclohexanone Cyclohexanol 3. Zn
12
644 The compound ( X ) formed by the
reaction of furfural ( Y ) with ethanol is :
A. an aldol
B. an acetal
c. a ketal
D. a hemiacetal
12
645 Consider the reactions.
a) ( C H_{3}-C H=C H_{2} frac{(i) B H_{3} / T H F}{(i i) H_{2} O / O H} )
( frac{P C C}{left(i n C H_{2} C l_{2}right)} B )
b) ( C H_{3}-C H=C H_{2} frac{(i) H g(O A c)_{2}}{(i i) N a B H_{4} bar{O} H} )
( boldsymbol{C} frac{boldsymbol{P C C}}{left(boldsymbol{i n} C boldsymbol{H}_{2} C l_{2}right)} boldsymbol{D} )
Product B and D are:
A. Functional isomers
B. Positional isomeress
c. chain isomeres
D. Metamers
12
646 Arrange the following esters in increasing order of their ease of hydrolysis with suitable explanation.
(a) Phenyl acetate
(b) p-nitrophenyl acetate
(c) p-methoxyphenyl
(d) Tolyl acetate
A ( . c<d<a<b )
B. ( b<a<d<c )
c. ( c<d<b<a )
D. None f these
12
647 Which of the following combination of
reagents can bring the
shown transformation?
( mathbf{A} cdot C H_{3} O N a, M g / )ether( , C O_{2}, H_{2} O / H^{+} )
в. ( C H_{3} ) ONa, ( K C N / D M S O, H_{2} O / H_{2} S O_{4}, ) heat
( mathbf{c} cdot M g / )ether( , C O_{2}, H_{2} O / H^{+}, C H_{3} O N a )
D. ( N a O H, M g / )ether( , C O_{2}, H_{2} O / H^{+}, C H_{3} I )
12
648 The addition compound obtained by treating propanone with hydrogen cyanide is:
A. propene cyanohydrin
B. ethene cyanohydrin
c. propane cyanohydrin
D. ethane cyanohydrin
12
649 There is a large difference in the boiling points of butanal and butan-1-ol due to:
A. intermolecular hydrogen bonding in butan-1ol
B. intramolecular hydrogen bonding in butanal
c. higher molecular mass of butan-1-ol
D. resonance shown by butanal.
12
650 As the carbon chain increases in
aldehyde and ketone compounds, solubility in water:
A . decreases
B. increases
c. may increase
D. may decrease
12
651 Assertion
STATEMENT-1: m-Chlorobenzoicacid is a
stronger acid than p-chlorobenzoic acid
Reason

STATEMENT-1: In m-chlorobenzoicacid,
both – I effect and +M effect of ( C l )
operate, but in p-isomer only +M effect
of ( C l ) operates.
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
652 Correct statement about products ( x ) and
y is :
A. Both gives Tollen’s test.
B. Both gives Fehling test.
C. Both gives 2, 4-DNP test.
D. Oxygen atom present in both the products.
12
653 Identify ( A ) and ( B ) 12
654 Arrange the following compounds in the increasing order of their reactivity
towards HCN.
I. Acetaldehyde
II. Acetone
III. Methyl-tert-butyl ketone
IV. Di-tert-butyl ketone
A. III <II<IV <
B. II ( |<|<mid V<| )
c. ( mid V<|<|<1 )
D. II<IV <I<III
12
655 The general formula for alcohol is:
A. ( C_{n} H_{2 n}+1 O H )
в. ( C_{n} H_{2 n}+2 O H )
c. ( C_{n} H_{2 n}-2 O H )
D. ( C_{n} H_{2 n} )
12
656 ( (boldsymbol{A}) boldsymbol{C}_{4} boldsymbol{H}_{6} frac{boldsymbol{H}_{2} / boldsymbol{P t}}{longrightarrow}(boldsymbol{B}) boldsymbol{C}_{4} boldsymbol{H}_{8} frac{boldsymbol{O}_{3} / boldsymbol{H}_{2} boldsymbol{O}}{_{boldsymbol{}}} )
( boldsymbol{C H}_{3} boldsymbol{C O O H} )
Hence ( A ) and ( B ) are :
A. ( C H_{3} C equiv C C H_{3}, C H_{3} C H=C H C H_{3} )
в. ( C H_{2}=C H C H_{3}=C H_{2}, C H_{3} C H=C H C H_{3} )
( ^{c} cdot mid, mathrm{CH}_{3} mathrm{CH}=mathrm{CHCH}_{3} )
D. None of these
12
657 Identify the organic compound ( A ) which is widely used as a preservative in pickles and has a molecular formula
( C_{2} H_{4} O_{2} . ) This compound reacts with ethanol to form a sweet-smelling
compound ( boldsymbol{B} )
12
658 A student takes 2 mL acetic acid in a
dry test tube and adds a pinch of sodium hydrogen carbonate to it. He makes the following observations:
I. A colourless and odourless gas evolves with a brisk effervescence.
II. The gas turns lime water milky when
passed through it.
III. The gas burns with an explosion when a burning splinter is brought near ¡t
IV. The gas extinguishes the burning splinter that is brought near it. The correct observations are:
A. ।, , I, and III
B. II, III and IV
c. ॥ा, Iv and ।
D. IV, I and II
12
659 t-buty ( mid-C=C H-C_{|}-O H ) can’t
give decarboxylation while normally
( alpha-beta ) unsaturated acid give this
reaction because:
A. t-butyl gp, has large size and does not let the ( C O O H ) group to leave.
B. t-butyl gp. can’t extract ( H ) from ( C O O H )
C. t-butyl gp. destabilise carbanion formed
D. t-buty gp, does not allow this composition to convert to ( beta-gamma ) unsaturated acid
12
660 Write structure of Butane ( 1,4- ) dial. 12
661 What is the oxidation number of
carbonyl carbon in acetophenone?
( A cdot+3 )
B. +1
( c cdot+2 )
D. zero
12
662 The increasing order of acidic strength in the following acids.
( boldsymbol{C l C H}_{2} boldsymbol{C O O H}, boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C O O H}, boldsymbol{C l C} )
and ( C H_{3} C O O H ) is:
A ( cdotleft(C H_{3}right)_{2} C H C O O H<C H_{3} C H_{2} C O O H< )
( mathrm{ClCH}_{2} mathrm{CH}_{2} mathrm{COOH}<mathrm{CH}_{3} mathrm{COOH}<mathrm{ClCH}_{2} mathrm{COOH} )
в. ( C H_{3} C H_{2} C O O H<left(C H_{3}right)_{2} C H C O O H< )
( mathrm{ClCH}_{2} mathrm{CH}_{2} mathrm{COOH}<mathrm{CH}_{3} mathrm{COOH}<mathrm{ClCH}_{2} mathrm{COOH} )
c. ( left(C H_{3}right)_{2} C H C O O H<C H_{3} C H_{2} ) СООН( < )
( mathrm{ClCH}_{2} mathrm{CH}_{2} mathrm{COOH}<mathrm{ClCH}_{2} mathrm{COOH}<mathrm{CH}_{3} mathrm{COOH} )
D. ( left(C H_{3}right)_{2} C H C O O H<C l C H_{2} C H_{2} C O O H< )
( C H_{3} C H_{2} C O O H<C H_{3} C O O H<C l C H_{2} C O O H )
12
663 Among the following compounds, which one has maximum boiling point?
A. n-butyl alcohol
B. n-butyraldehdye
c. diethyl ether
D. Butanoic acid
12
664 0
0
0
0
0
12
665 Which of the following statements are
correct?
This question has multiple correct options
A. Benzaldehyde reduces Fehling’s solution
( mathbf{B} cdot C_{6} H_{5} C H O+C_{6} H_{5} C H O stackrel{N a O H}{longrightarrow} C_{6} H_{5} C H= )
( C H C_{6} H_{5}+O_{2} ) is a Claisen-Schmidt reaction.
C ( cdot p K_{a} ) (formic acid) is less than ( p K_{a} ) (acetic acid)
D.
12
666 What is the IUPAC name of the
compound?
12
667 What happens when acetic acid is
treated with ethanol in the presence of
concentrated ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} ) ? Give the
equation of the reaction
12
668 Question 9. Complete the following reaction sequence.
CH3
CH
CH
(1) CH3MgBr
→ [A]
(ii) H2O
Na metal, [B]
Ether
CH3-Br
br> [C]
12
669 0.2 Which of the following compoun
the following compounds is most reactive towards nucleophilic
addition reactions?
(a) CH3 -C-H
(b) CH –
– CHA
-С-Н
-&-CH₃NT
12
670 Predict product of the above given reaction:
A . cyclohexene
B. cyclohexanol
c. cyclohexanone
D. cyclohexane
12
671 Identify the position where electrophilic aromatic substitution(EAS) is most
favourable.
( A cdot A )
B. B
( c cdot c )
D. A and C
12
672 If the products of ozonolysis are acetone
and formaldehyde, what is the initial compound?
( A )
в.
c.
D.
12
673 Odd one out among the following is:
A. Tartaric acid
B. Oxalic acid
c. Citric acid
D. Prussic acid
12
674 Which of the following is not a good method to make ( 2,2- )
dimethylpropanoic acid?
A ( cdotleft(C H_{3}right)_{3} C C H_{2} O H^{K_{2} C r_{2} O_{7}, H_{2} S O_{4}} )
B. ( left(C H_{3}right)_{3} C B r_{text {Diethylether }(i)} stackrel{M g}{stackrel{(i)}{H_{2} O}, H} )
( ^{mathbf{c}} cdotleft(C H_{3}right)_{3} C B r stackrel{N a C N}{longrightarrow} frac{H_{3} bar{phi}}{H e a t} )
D. ( left(C H_{3}right)_{3} C C=C H stackrel{O_{3}}{longrightarrow} stackrel{O H_{2}}{longrightarrow} )
12
675 The acid used in the making of vinegar
is:
A. formic acid
B. acetic acid
c. sulphuric acid
D. nitric acid
12
676 ( 0-x y ) lene on ozonolysis will give :
( A )
( mathrm{CHO} )
( mathrm{I}_{mathrm{CHO}}^{mathrm{O}} mathrm{CH}_{3}-mathrm{C}-mathrm{CHO} )
( mathrm{NH} )
в.
( begin{array}{l}mathrm{CH}_{3}-mathrm{C}=mathrm{O} quad mathrm{O} \ mathrm{CH}_{3}-mathrm{C}=mathrm{O}end{array} & mathrm{CH}_{3}-mathrm{C}-mathrm{CHO} )
c.
( mathrm{CH}_{3}-mathrm{C}=mathrm{O} )
( mathrm{CH}_{3}-mathrm{C}=mathrm{O} )( & mathrm{CHO} )
( mathrm{CHO} )
( D )
( mathrm{CH}_{3}-mathrm{C}=mathrm{O} quad ) II
( mathrm{CH}_{3}-mathrm{C}=mathrm{O}, mathrm{CH}_{3}-mathrm{C}-mathrm{CHO} & underset{mathrm{CHO}}{mathrm{I}} )
12
677 tood
yo
12
678 Consider the following compounds, The correct order towards electrophilic substitution reaction is :
( A cdot(text { iv })>(text { iii })>(text { ii })>(i) )
B. (i)> (ii) > (iii) > (iv)
( c cdot(text { iv })>(text { iii })>(i)>(text { ii }) )
D. (iii) > (iv) > (i) > (ii)
12
679 Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is:
A. ( C H_{3} C O O C H_{3} )
в. ( C H_{3} C O N H_{2} )
с. ( C H_{3} ) СООСОСН( _{3} )
D. ( C H_{3} C O C l )
12
680 ( boldsymbol{C H}_{3}-boldsymbol{C} equiv boldsymbol{C H}+boldsymbol{H}_{2} boldsymbol{O} frac{boldsymbol{H} boldsymbol{g} boldsymbol{S O}_{4}}{boldsymbol{H}_{2} boldsymbol{S O}_{4}}(boldsymbol{A}) )
The product ( A ) in above reaction is:
A. propanal
B. propanone
c. propene
D. both (a) and (b)
12
681 Which of the following will form lactone
on treatment with NaOH?
A. ( alpha- ) Bromo acid
B. ( beta- ) Bromo acid
c. ( beta ) – Hydroxy acid
D. ( delta- ) Bromo acid
12
682 Question 8. Which acid of each pair shown here would you expect to be
stronger?
(i) CH3COOH or CH FCOOH
(ii) CHFCOOH or CH,CICOOH
(iii) CH FCH2CH2COOH or CH3CHFCH2COOH
(iv) F3C COOH or H3C COOH
Wher rocance of an electron withdrawing group like F(-1 showing group)
12
683 Which of the following cyanohydrins on hydrolysis give an optically active acid giving iodoform reaction?
A. Acetone cyanohydrin
B. Propionaldehyde cyanohydrin
c. Acetaldehyde cyanohydrin
D. Formaldehyde cyanohydrin
12
684 The given conversion can be carried out
by which process?
( (mathrm{A}) )
( mathbf{A} cdot i . H B r+ ) peroxide ( i i . M e_{3} C^{ominus}, Delta i i i . O_{3} / H_{2} O )
B. i.H Br in. ( C_{2} H_{5} O^{ominus}, Delta ) iii. ( O_{3} / H_{2} O )
C ( . ) i.H I i i. ( M e O^{ominus}, Delta ) ii ( . O_{3} / Z n- ) acid
D. ( H C l+ ) peroxide
12
685 IUPAC naming of the compound is:
A. 3-octanoic acid
B. octane-3-oic acid
c. 2-ethylhexanoic acid
D. 3-ethylhexanoic acid
12
686 Which of the following statements is/are correct?
This question has multiple correct options
A. Methane was named as fire damp as it forms explosive mixture with air
B. Primary suffixes are added to the root word to show saturation or unsaturation in a C atom
C. The IUPAC name of valerie acid is pentanoic acid
D. The common name of hexanoic acid is caproic acid
12
687 The IUPAC name of the given structure
is:
12
688 Acetaldehyde on treatment with aluminium ethoxide gives:
A. ethyl methanoate
B. ethyl acetate
c. ethyl propionate
D. ethyl formate
12
689 Ethyl alcohol to trichloroacetic acid 12
690 Which of the following is not correct?
A. Acidic hydrolysis of ester is reversible
B. Hydrolysis of ester becomes faster after sometime due to the formation of ( C H_{3} C O O H )
C ( . H^{+} ) formed during hydrolysis acts as autocatalyst
D. Alkaline hydrolysis of ester is reversible
12
691 toppr
5
Q Type your question
( B )
( mathbf{C} )
( D )
12
692 ( mathbf{2} boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C O C H}_{3} stackrel{d r y H C l}{rightarrow} ) ‘X’. ( mathbf{X} ) is
A. Mesityl oxide
B. Diacetone alcohol
c. Acetic acid
D. Mesitylene
12
693 Statement: One mole of propyne reacts
with ( B_{2} H_{6} / H_{2} O_{2} / O H ) to produce
acetone.
If the given statement is true the enter 1
else enter 0
12
694 The mixture of colourless gases is:
A ( cdot C O_{2} )
в. ( C O )
( c cdot c o_{2}+c O )
D. ( C O_{2}+C O+H_{2} O )
12
695 What are acetals and hemiacetals? 12
696 Consider the reaction:
( boldsymbol{R} boldsymbol{C H O}+boldsymbol{N H}_{2} boldsymbol{N} boldsymbol{H}_{2} rightarrow boldsymbol{R C H}=boldsymbol{N} )
( N H_{2} )
What sort of reaction is it?
A. Free radical addition-elimination reaction
B. Electrophilic substitution-elimination reaction
c. Nucleophilic addition-elimination reaction
D. Electrophilic addition-elimination reaction
12
697 Which one of the following undergoes reaction with ( 50 % ) sodium hydroxide solution to give the corresponding alcohol and acid?
A. Phenol
B. Benzaldehyde
c. Butanal
D. Benzoic acid
12
698 In the following sequence of reactions Toluene ( frac{K M n O_{4}}{longrightarrow} A frac{S O C l_{2}}{B G O_{4}} B frac{H_{2} / P d}{C} C )
then product ( boldsymbol{C} ) is:
A ( cdot C_{6} H_{5} ) СООН
в. ( C_{6} H_{5} C H_{3} )
( mathrm{c} cdot C_{6} H_{5} C H_{2} O H )
D. ( C_{6} H_{5} C H O )
12
699 Acetal or ketal is:
A. Vic dialkoxy compound
B. ( alpha, omega ) – dialkoxy compound
C. ( alpha ) -alkoxy alcohol
D. Gem dialkoxy compound
12
700 (B) ( overbrace{operatorname{Ph} C H}^{N a B H_{4}} operatorname{CH} )
( boldsymbol{C H O} frac{1 . L A H, text { ether }}{2 . H_{3} O^{+}}(A) ) The products ( (A) )
and (B) are:
( A )
( A )
в.
( c )
D.
12
701 The molecular formula of the compound which gives two moles of acetone during ozonolysis:
A. ( C_{2} H_{4} )
в. ( C_{3} H_{6} )
( mathbf{c} cdot C_{4} H_{8} )
D. ( C_{6} H_{12} )
12
702 In the reaction, the product ( (X) ) is:
( mathbf{A} )
( B )
( mathbf{C} )
( D )
12
703 IUPAC name of the compound is:
A. 3,4 -Dihydroxybenzoic acid
B. 4,5-dihydroxybenzoic acid
c. 2,3-dihydroxybenzoic acid
D. none of these
12
704 Which of the following acids dissociates to the greatest extent in a
aqueous solution?
A. Trichloroacetic acid
B. Acetic acid
c. chloroacetic acid
D. Dichloroacetic acid
12
705 Acetyl chloride cannot be obtained from
acetic acid with
A ( cdot P C l_{3} )
в. ( P C l_{5} )
c. ( operatorname{sOCl}_{2} )
D. ( S_{2} C l_{2} )
12
706 Q. 33 Identify the compounds A, B and C in the following reaction.
CH3 – Br Mg/ether (1) CO2 CH2OH/H+
[C]
A
11) Water (B) CH₂OH
ne Completa chemical cooroon
12
707 Which of the following correctly describes meta-formaldehyde?
A. It is a dimer of HCHO
B. It is a trimer of formaldehyde.
c. It is a tetramer of formaldehyde.
D. It is a polymer in which number of HCHO unit is more than 100
12
708 The decreasing order of acidic character of the following is:
(I) ( E t O H )
(II) ( M e- ) COOH
(III) ( M e O O C-C H_{2}-C O O M e )
A ( . I>I I I>I V>I )
B. ( I I>I I I>I>I V )
c. ( I>I V>I I I>I I )
D. ( I V>I>I I I>I I )
12
709 Suggest reaction mechanisms for the
formation of given product.
12
710 An organic compound containing ( – ) COOH functional group is called:
A. aldehyde
B. ketone
c. amide
D. carboxylic acid
12
711 Sodium benzoate has it’s application in:
This question has multiple correct options
A. food preservation
B. pharmacy
c. fireworks
D. fuel in whistle mix
12
712 Which of the following statement(s) is/are affect the stability of hydrates of carbonyl compounds? This question has multiple correct options
A. Steric hindrance
B. Presence of -I groups on carbonyl carbon’s hydrate
c. Intramolcular hydrogen bonding
D. Angle strain in carbonyl compound
12
713 The smallest ketone and its next
homologue are reacted with ( N H_{2} O H )
to form:
A. two different oxime
B. four different oxime
C. three different oxime
D. optically active oxime
12
714 A keto ester (X) with molecular formula
( C_{6} H_{10} O_{3} ) on treatment with ( mathrm{NaOH} ) and
( I_{2} ) does not give iodoform but on boiling with dilute KOH gives a compound (Y)
with molecular formula ( C_{4} H_{5} O_{3} K ) which upon acidification followed by heating undergoes decarboxylation to give acetone. The keto ester (X) is?
A. ( C H_{3} C O C H_{2} C H_{2} C O O C H_{3} )
в. ( C H_{3} C O C H_{2} C O O C_{2} H_{5} )
c. ( C H_{3} C H_{2} O C H_{2} ) СООСН( _{3} )
D. ( C H_{3} C O C Hleft(C H_{3}right) C O O C H_{3} )
12
715 Question 4. Arrange the following in decreasing order of their a:
strength and give reason for your answer. CH3CH2OH; CH3COOH.
CICH,COOH; FCH2COOH; C,HCH2COOH.
12
716 Most acidic hydrogen is present in :
( A )
B.
c. ( left(C H_{3} C Oright)_{3} C H )
D. ( left(C H_{3}right)_{3} C O H )
12
717 On vigorous oxidation by permanganate solution ( left(boldsymbol{C H}_{3}right)_{2} boldsymbol{C}=boldsymbol{C H}-boldsymbol{C H}_{2} boldsymbol{C H O} )
gives:
A ( cdotleft(C H_{3}right)_{2} C O ) and ( O H C-C H_{2}-C H O )
в. ( left(C H_{3}right)_{3} C O H ) and ( H C H O O )
c. ( left(C H_{3}right)_{2} C O ) and ( O H C-C H_{2}-C O O H )
D. ( left(C H_{3}right)_{2} C O ) and ( C H_{2}(C O O H)_{2} )
12
718 H,O, H2SO4 / HgSO4
208. Q
C=CH
D,O, DSO/
HgSO4
BHz/THF
H,O/OH
R
P, Q and R respectively are:
ÇCHD, accH, OCH CHO
CCH,
-CH,CHO
(X)
(a) X, Y, and Z
(b) Y, X and Z
(c) Y in all cases
(d) Z in all cases
12
719 Acetone ( left(C H_{3} C O C H_{3}right) ) is the major product in:
( boldsymbol{I} . boldsymbol{C H}_{2}=boldsymbol{C}=boldsymbol{C H}_{2} stackrel{boldsymbol{H}_{3} boldsymbol{O}^{+}}{longrightarrow} )
( boldsymbol{I I} cdot boldsymbol{C H}_{3} boldsymbol{C} equiv boldsymbol{C H} frac{boldsymbol{H}_{2} boldsymbol{S O}_{4} / boldsymbol{H} boldsymbol{g} boldsymbol{S O}_{4} / boldsymbol{H}_{2} boldsymbol{O}}{longrightarrow} )
IIII. ( C H_{3} C equiv C H frac{B H_{3} . T H F}{H_{2} O_{2} / O H^{-}} )
This question has multiple correct options
A . ( I )
в. ( I I )
c. ( I I I )
D. none of the above
12
720 Explain the following with one example
(a) Aldol condensation
(b) Cannizzaro reaction
(c) Esterification
(d) Decarboxylation
12
721 Write IUPAC names of the products
obtained by the ozonolysis of the pent-2-
ene?
A. Ethanal and propanal
B. Only Ethanal
c. only propanal
D. Ethanol and propanone
12
722 Compound (A) is:
( mathbf{A} )
[
C H_{3}-underset{_{C H_{3}}^{mid}}{C}^{text {сснз }}-C H_{2} C H_{2} B r
]
В. ( C H_{3}-begin{array}{c}C H-C H-C H_{2} B r \ _{I H_{3}}^{mid}end{array} )
D.
[
C H_{3}-underbrace{C}_{C H_{3}}^{text {СС }}-C_{text {। }} H-C H_{3}
]
12
723 The correct increasing order of the acidic strength of acids, butyric acid (I),
( 2- ) chlorobutyric acid ( (|), 3 ) chlorobutyric acid (III) and 2, 2dichlorobutyric acid (IV) is :
( A cdot|<||<|||<mid V )
B. III <II IV <1
c. ( |<|||<||<mid V )
D. ||( <1<|<mathbb{V} )
E. IV ( <|1<|<1 )
12
724 Which is the final product obtained by the reaction of a grignard reagent ethyl magnesium bromide with propanone?
A. Pentane-1-ol
B. 2-Methyl-butan-2-ol
c. Pentane-2-ol
D. 3-Methyl-butane-2-ol
12
725 ( boldsymbol{P} frac{1 . C H_{3} M g B r}{2 . H_{3} O^{+}} R frac{1 . d i l . N a O H}{2 . Delta} 4 )
methylpent-3-en-2-one
( boldsymbol{P} ) is :
A. ethanamine
B. ethanal
c. propanone
D. ethanenitrile
12
726 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
727 The IUPAC name of the following compound is 4 -(ethoxycarbonyl) benzoic acid.
A . True
B. False
12
728 224. The reaction of benzene with CO and HCl in the
presence of anhydrous Alci, gives
(a) Chlorobenzene (b) Toluene
(c) Benzyl chloride (d) Benzaldehyde
12
729 Both the organic compounds A and B can release hydrogen with Na. Only compound A can form a salt with NaOH,
whereas B cannot.When A reacts with B
in the presence of conc. ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4}, ) a pleasant smelling compound is formed. The pair of compounds ( A ) and ( B ) can be respectively:
A ( cdot C_{2} H_{5} O H ) and ( C_{2} H_{2} )
в. ( C H_{3} C O O H ) and ( C_{2} H_{2} )
c. ( C H_{3} C O O H ) and ( C_{2} H_{5} O H )
D. ( C_{2} H_{5} O H ) and ( C H_{3} C O O H )
12
730 Question 12. When liquid ‘A’ is treated with a freshly prepared
ammoniacal silver nitrate solution, it gives bright silver mirror. The liquid
forms a white crystalline solid on treatment with sodium hydrogen
sulphite. Liquid ‘B’ also forms a white crystalline solid with sodium
hydrogen sulphite but it does not give test with ammoniacal silver nitrate.
Which of the two liquids is aldehyde? Write the chemical equations of
these reactions also.
12
731 Which of the following acids have the
lowest ( p K_{a} ) value?
( A )
( C l )
[
begin{array}{c}
mid \
C H_{3}-C H-C O O H
end{array}
]
в. ( C l-C H_{2}-C H_{2}-C O O H )
c. ( C C l_{3} ) СООН
D. ( C H C l_{2} C O O H )
12
732 Which of the following are bidentate monoanion ligands?
(1)Acetylacetonato
(2) Oxalato ion
(3) Dimethylglyoximato Select the correct answer using the
codes given below:
A. 1 only
B. 1 and 3 only
c. 3 only
D. 2 and 3 only
12
733 0.21 Give the IUPAC names of the following compounds.
CH=CH-CHO
CHO
(b)
(c) CH – CH2–C–CH2–CHO
(d) CH-CH=CH-CHO
O
Collana
12
734 How many group are ( o / p ) director in the electrophilic aromatic substitution? 12
735 The IUPAC name of compound is:
A. Butan-2-aldehyde
B. 2-Methyl-butanal
c. 3-Methyl-butanal
D. 2-Ethylpropanal
12
736 Acetic acid reacts with ethanol in the
presence of ( boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} ) to form ( boldsymbol{X} ) and
water. Which of the following is ( X ? )
A. ( C H_{3} C H_{2} C O O C_{2} H_{5} )
в. ( C H_{3} ) СОСН( _{3} )
c. ( C H_{3} C O C_{2} H_{5} )
D. ( C H_{3} C O O C_{2} H_{5} )
12
737 The percentage of formaldehyde in
formalin is:
A . ( 40 % )
B. 30%
c. ( 20 % )
D. 10%
12
738 А.
Match the acids given in Column I with their correct IUPAC names given
in Column II.
Column
Column II
(Acids)
(IUPAC names)
Phthalic acid
1. Hexane-1,6-dioic acid
B. Oxalic acid 2. Benzene-1, 2-dicarboxylic
acid
Succinic acid 3. Pentane-1,5-dioic acid
Adipic acid 4. Butane-1,4-diolc acid
Ε Glutaric acid 5. Ethane-1, 2-dloic acid
12
739 IdenLıly LIIe producl.
( mathbf{A} )
( B )
( C )
( D )
12
740 ( (a) C H_{3} C O N H_{2}+K O H longrightarrow )
( (b) C H_{3} C O O H+s o d a l i m e longrightarrow )
( (c) C H_{3} C O O A g+B r_{2} longrightarrow )
All the three reactions show similarity
in:
A. Descending of carbon atoms
B. Ascending of carbon atoms
c. Both the above
D. None of above
12
741 Which of the following is true
statement?
A. The boiling point of aldehydes and ketones is higher than less polar ethers and non polar hydrocarbons of comparable molecular masses.
B. The boiling point of aldehydes and ketones is higher than less polar ethers but lower boiling points than non polar hydrocarbons of comparable molecular masses.
C. The boiling point of aldehydes and ketones is lower than less polar ethers but higher boiling points than non polar hydrocarbons of comparable molecular
masses.
D. The boiling point of aldehydes and ketones is lower than less polar ethers and non polar hydrocarbons of comparable molecular masses.
12
742 When acetone is condensed into a ketol
the reagent used is :
( mathbf{A} cdot B a(O H)_{2} )
в. ( N a H C O_{3} )
c. ( B r_{2} ) water
D. ( C l_{2} )
12
743 Find out the major product of the
reaction.
12
744 In the following pair which is more
acidic?
( mathbf{C H}_{2} mathbf{F C H}_{2} mathbf{C O}_{2} mathbf{H}, mathbf{C H}_{3} mathbf{C H M F C H C O}_{2} mathbf{H} )
12
745 In the given reaction:
( [X] ) will be :
A. Only syn oxime
B. Only anti oxime
( c . ) mixture of syn and anti oxime
D. secondary amide
12
746 ( boldsymbol{C H}_{3} boldsymbol{C H O}+boldsymbol{H C H O} frac{boldsymbol{H e a t}}{text {Dil. } boldsymbol{N a O H}} )
( boldsymbol{A} frac{boldsymbol{H}_{3} boldsymbol{O}^{+}}{boldsymbol{H} C N} boldsymbol{B} )
The structure of compound ( B ) is :
( mathbf{A} cdot C H_{3}-C H-C O O H )
( _{O H} )
в. ( C H_{2}=C H-underset{I N}{_{I}} begin{array}{c}C H-O H \ end{array} )
с. ( C H_{3} C H_{2}-C H-C O O H )
он
D. ( C H_{2}=C H-C H-C O O H )
o ( _{H} )
12
747 Identify the substance underlined, in each of the following cases:
An organic compound containing COOH functional group.
12
748 Which of the following is used as an acid bath in dyeing cotton and wool?
A. Methanoic acid
B. Acetic acid
c. Benzoic acid
D. Sulphuric acid
12
749 In the reaction ( x ) and ( y ) are:
( mathbf{A} cdot x=H_{2} cdot P d / B a S O_{4} ; y=N a O A c, A c_{2} O )
B ( cdot x=L i A l H_{4} ; y=N a O A c, A c_{2} O )
C ( cdot x=H_{2}, P d / C ; y=N a O H, A c_{2} O )
( mathbf{D} cdot x=L i A l H_{4} ; y=N a O H, A c_{2} O )
12
750 What is the common name of ( boldsymbol{C} boldsymbol{H}_{2}= )
CHCOOH?
A. Anthranilic acid
B. Citric acid
c. Acrylic acid
D. Propenoic acid
12
751 Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:
A. hydrocyanic acid
B. sodium hydrogen sulphite
c. a Grignard reagent
D. hydrazine in presence of feebly acidic solution
12
752 Ortho-xylene on ozonolysis followed by reductive hydrolysis gives:
A. ( C H O-C H O ) and ( C H_{3}-C O O H )
в. ( C H_{3}-C O-C O-C H_{3}, C H O-C H O ) and ( C H_{3}- )
( C O-C H O )
c. ( C H_{3}-C O-C O-C H_{3} ) and ( C H O-C H O )
D. ( C H_{3}-C O-C O-C H_{3}, C H_{3}-C O-C H O ) and
( C H O-C H O )
12
753 ( frac{1}{8}=frac{-}{2} )
( frac{j}{delta} )
( delta )
12
754 The reactant ( X & Y ) of following
reactions are:
( mathbf{A} )
B.
( c )
D.
12
755 Ketones reacts with Mg – Hg over water
and give:
A. Alcohols
B. pinacolones
c. pinacols
D. none of these
12
756 Compound ( Aleft(C_{7} H_{13} B rright) ) is a tertiary
bromide. On treatment with sodium
ethoxide in ethanol, ( A ) is convert into ( B )
( left(C_{7} H_{12}right) . ) Ozonolysis of ( B ) gives ( C ) as the
only product. A and B are:
A . A: 1-bromo 1-methylcyclohexane; B:1-methy cyclohexene
B. A: 1-bromo 2-methylcyclohexane; B: 3-methyl cyclohexene
c. A: 1-bromo 1-methylcyclohexane; B methylenecyclohexane
D. None of these
12
757 Identify correct order of reactivity for electrophilic substitution reaction of the following compounds:
( A )
в.
( c )
D.
12
758 Identify (A) To (C) 12
759 Give plausible explanation for each of the following:
(i) Cyclohexanone forms cyanohydrin in good yield but 2,2,6 trimethylcyclohexanone does not.
(ii) There are two ( N H_{2} ) groups in semicarbazide. However, only one is
involved in the formation of
semicarbazones.
(iii) During the preparation of esters from a carboxylic acid and an alcohol in the presence of an acid catalyst, the water or the ester should be removed as
soon as it is formed.
12
760 Which of the following statements
is/are correct?
This question has multiple correct options
A. ( 4- ) Chlorophenol ( (I) ) will dissolve in ( N a O H ) but ( 4- )
chloro ( -1- ) methyl benzene (II) will not.
B. ( 4- ) Methylbenzoic ( (I I I) ) acid will dissolve in
aq.NaHCO( _{3} ) ) but ( 4- ) methylphenol(( I V ) ) will not.
C ( .2,4,6- ) Trinitrophenol ( (V) ) will dissolve in
aq.NaHCO( _{3} ) ) but ( 4- ) methylphenol ( (V I) ) will not
D. ( 4- ) Ethylphenol ( (V I I) ) will dissolve in aq. ( N a O H ) but
ethyl phenyl ether ( (V I I) ) will not.
12
761 ( (boldsymbol{A})left(boldsymbol{C}_{10} boldsymbol{H}_{6}right) frac{text {Reductiveoroxidative}}{text {ozonolysis}} )
( (B)left(C_{5} H_{8} Oright) )
(A) reacts with one equivalent of ( boldsymbol{H}_{2} / mathrm{Pd} ) Give all the possible structures of ( (A) ) and (B) if :
Both (A) and (B) are resolvable.
12
762 Write the IUPAC name of
( left(boldsymbol{C H}_{3}right)_{2} boldsymbol{C H C H O} )
12
763 Which of the following is not a
spontaneous reaction ( i e, ) has
equilibrium constant ( (K) ) less than
one?
This question has multiple correct options
( A )
[
mathrm{CH}_{3}-mathrm{C}=mathrm{CH}+mathrm{CH}_{3} mathrm{Li} rightleftharpoons mathrm{CH}_{3}-mathrm{C}=mathrm{CLi}+mathrm{CH}_{4}
]
в.
[
begin{array}{l}
mathrm{CH}_{3}-mathrm{C} equiv mathrm{CH}+mathrm{CH}_{3} mathrm{CH}_{3} mathrm{ONa}= \
mathrm{CH}_{3}-mathrm{C} equiv mathrm{CNa}+mathrm{C}_{2} mathrm{H}_{5} mathrm{OH}
end{array}
]
( c )
[
mathrm{CH}_{3} mathrm{COOH}+mathrm{CH}_{3}-mathrm{C} equiv mathrm{CNa} rightleftharpoons
]
[
mathrm{CH}_{3} mathrm{COONa}+mathrm{CH}_{3}-mathrm{C}=mathrm{CH}
]
( D )
[
begin{array}{l}
mathrm{CH}_{3} mathrm{CH}=mathrm{CH}_{2}+mathrm{CH}_{3}-mathrm{C}=mathrm{CNa} rightleftharpoons \
mathrm{CH}_{3} mathrm{CH}=mathrm{CHNa}+mathrm{CH}_{3}-mathrm{C}=mathrm{CH}
end{array}
]
12
764 ( alpha ) -Hydroxypropanoic acid can be prepared from ethanal by following the steps given in the sequence.
A. Treat with ( H C N ) followed by acidic hydrolysis
B. Treat with ( N a H S O_{4} ) followed by reaction with ( N a_{2} C O_{3} )
c. Treat with ( H_{2} S O_{4} ) followed by hydrolysis
D. Treat with ( K_{2} C r_{2} O_{7} ) in presence of sulphuric acid
12
765 Ethanoic acid is obtained by the ( ldots . . ) of ethanol
A. Combustion
B. Oxidation
c. Reduction
D. Subsitution
12
766 An organic compound with molecular
formula ( C_{9} H_{10} O ) forms 2,4 -DNP
derivative, reduces Tollen’s reagent and undergoes Cannizaro reaction. On vigorous oxidation it gives a dicarboxylic acid which is used in the preparation of terylene. Identify the organic compound.
12
767 The correct order of acidities of the
following is :
A. III>IV > || > |
B. IV>|||>|>1|
c. ( ||>|>|>mid V )
D. ॥> ||| > IV >
12
768 Product ( (A) ) is?
( A )
( B )
( c )
( D )
12
769 What are ( N ) and ( M ? )
products
( A cdot 6,6 )
B. 6,4
( c cdot 4,4 )
( D cdot 3,3 )
12
770 Among the following compounds, the most acidic is :
A. p-nitrophenol
B. p-hydroxybenzoic acid
c. o-hydroxybenzene acid
D. p-toluic acid
12
771 COOK
Electrolysis
163.
.. The product is:
COOⓇK
12
772 Formaldehyde is used as formalin in
industries:
A. to preserve biological specimens
B. to prepare bakelite
c. both ( A ) and ( B )
D. none of these
12
773 ( boldsymbol{C H}_{3} boldsymbol{M} boldsymbol{g} boldsymbol{B r}+boldsymbol{C O}_{2} stackrel{text {Dryether}}{longrightarrow} boldsymbol{Y} frac{boldsymbol{H}_{3} boldsymbol{O}^{oplus}}{longrightarrow} )
( Z )
What is product ( z ) in the given reaction?
A. Ethyl acetate
B. Acetic acid
c. Propanoic acid
D. Methyl acetate
12
774 ( boldsymbol{C H}_{3} boldsymbol{O H} frac{(i) boldsymbol{X}}{(i i) R boldsymbol{h}, boldsymbol{Delta}} boldsymbol{C H}_{3} boldsymbol{C O O H} )
In the above reaction, ( boldsymbol{X} ) is :
A ( . C O_{2} )
в. ( C O )
с. ( M g O )
D. ( C )
12
775 In the following reaction ( boldsymbol{C H}_{3} boldsymbol{C H O}+boldsymbol{N H}_{2} cdot boldsymbol{N} boldsymbol{H}_{2} rightarrow boldsymbol{A} stackrel{boldsymbol{B}}{longrightarrow} )
( boldsymbol{C H}_{3} boldsymbol{C H}_{3}+boldsymbol{N}_{2} )
Identify ( A ) and ( B )
A. ( C H_{3} C H=N N H_{2} ) and ( C_{2} H_{5} O N a )
B. ( C H_{3} C H_{2}-N H_{2} ) and ( C_{2} H_{5} O N a )
c. ( C H_{3}-N H-N H-C H_{3} ) and ( C_{2} H_{5} O H )
D. ( C H_{3} C H_{2} N H_{2} ) and ( C_{2} H_{5} O H )
12
776 ( x^{2} )
( d x )
( d x )
12
777 Write the structure of a nitrolic acid. 12
778 Why is alpha ( ( alpha ) ) hydrogen of carbony compounds acidic in nature? 12
779 Manufacture of nylon- 6,6 uses:
A. hexanoic acid
B. pentanoic acid
c. hexanedioic acid
D. acetic acid
12
780 ( boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{C} boldsymbol{H}_{3}-frac{C r boldsymbol{O}_{2} C l_{2}}{longrightarrow} boldsymbol{Z} )
In the given sequence, ( Z ) is:
A. Benzaldehyde
B. Toluic acid
c. Phenul acetic acid
D. Benzoic acid
12
781 How will you convert Benzene to Benzoic
acid?
12
782 For which functional derivative of
carboxylic acids,acidic hydrolysis is
avoided?
A. Acid chlorides
B. Acid amides
c. Acid anhydrides
D. Esters
12
783 ( mathrm{CH}_{3} mathrm{COCl}+mathrm{H}_{2} stackrel{(A)}{longrightarrow}(mathrm{B}) )
The given reaction is an example of Rosenmund’s reaction. Identify the
product ( mathbf{B} )
A. Formaldehyde
B. cloroethane
c. Acetaldehyde
D. Ethanol
12
784 The given structure represents bondline formula of Heptan-4-one. Is it True or False.
A. True
B. False
12
785 In the Rosenmund’s reaction,
( boldsymbol{R} boldsymbol{C O C l}+boldsymbol{H}_{2} frac{boldsymbol{P d} / boldsymbol{B a S O}_{4}}{boldsymbol{P} boldsymbol{R} boldsymbol{H} boldsymbol{O}+} )
( boldsymbol{H} boldsymbol{C l} )
Here ( boldsymbol{B a S O}_{4} )
A. promotes catalytic activity of ( P d )
B. removes the ( H C l ) formed in the reaction
c. deactivates palladium
D. activates palladium
12
786 A strong base can abstract an ( alpha )
hydrogen from :
A . amine
B. alkene
c. alkane
D. ketone
12
787 Arrange the following in order of increasing acid strength.
( boldsymbol{C H}_{3} boldsymbol{C H} 2 boldsymbol{C H B r C O O H} ; boldsymbol{C H}_{3} boldsymbol{C H B r C} )
12
788 In the manufacture of acetic acid from
aerial oxidation of acetaldehyde, the catalyst used is :
A . acidified ( K_{2} C r_{2} O_{7} )
в. ( left(C H_{3} C O Oright)_{2} M n )
( mathrm{c} cdot mathrm{HgSO}_{4} )
D. ( N i )
12
789 toppr
Q Type your question
4
( B )
( c )
( D )
12
790 The correct set of reagents for the
following conversion is :
( mathbf{A} cdot P_{2} O_{5} / Delta, P_{4} / I_{2}, N a )
( mathbf{B} cdot P_{4} / I_{2}, N a, P_{2} O_{5} / Delta )
( mathbf{c} cdot P_{2} O_{5}, N a B H_{4} )
D. ( P_{4} / I_{2}, ) Na, conc. ( H_{2} S O_{4} )
12
791 The correct representation of 4
hydroxy- 2 -methylpent-2-en-1-al is:
( mathbf{A} cdot C H_{3}-C H-C H=C-C H O )
( O_{H} )
( begin{array}{rl}mathbf{B} cdot C H_{3}-C H-C H= & C-C H O \ C H_{3} & O_{H}end{array} )
( c )
( C H ) :
3.
( C H_{3}-C_{C H_{3}}-C H=C_{C H_{3}}-C H O )
( mathbf{D} cdot C H_{3}-C H-C H_{2}-C H-C H O )
( O_{H}^{mid} C H_{3} )
12
792 Give the decreasing order of nucleophilic addition reaction of the
following:
(i) ( boldsymbol{H} boldsymbol{C} boldsymbol{H} boldsymbol{O} )
PhCHO
(iii) Chloral ( left(mathbf{C l}_{3} mathbf{C}-mathbf{C H}=mathbf{O}right) )
Acetophenone
A ( .(i i i)>(i)>(i i)>(i v) )
B. ( (i v)>(i i)>(i)>(i i i) )
C. ( (i)>(i i i)>(i i)>(i v) )
D. ( (i i i)>(i)>(i v)>(i i) )
12
793 Structure of ethanoic acid is:
A ( cdot C H_{3}-C H_{2}-C H_{3} )
в. ( C H_{3}-C-O H )

О
c. ( C H_{3}-O-C_{3} H_{7} )
D. ( C H_{3}-C-C H_{3} )
I
O
E ( cdot C H_{3}-C H_{2}-N H_{2} )
12
794 Write the main product formed when propanal reacts with the following
reagents:
(i) 2 moles of ( C H_{3} O H ) in presence of
dry ( boldsymbol{H} boldsymbol{C l} )
(ii) Dilute ( N a O H )
(iii) ( H_{2} N-N H_{2} ) followed by heating
with ( K O H ) in ethylene glycol
12
795 ( boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{C O O H}+boldsymbol{C H}_{3} boldsymbol{M} boldsymbol{g} boldsymbol{I} rightarrow ? )
( mathbf{A} cdot C_{6} H_{5} C O O M g I )
в. ( C H_{4} )
c. Both a and ( b )
D. none
12
796 Write the correct order of acidity:
A. ( P>Q>R>S )
в. ( Q>P>R>S )
c. ( Q>R>S>P )
D. ( S>R>Q>P )
12
797 An aromatic compound ( (boldsymbol{X})left(boldsymbol{C}_{mathbf{8}} boldsymbol{H}_{mathbf{8}} boldsymbol{O}right) )
gives positive 2,4 -DNP test. It gives a yellow precipitate of compound ( (Y) ) on
reaction with iodine and sodium
hydroxide solution. ( (X) ) does not give
Tollen’s test on oxidation under drastic
conditions. It gives a carboxylic acid
( (Z)left(C_{7} H_{6} O_{2}right) cdot(Z) ) is also formed with
( (Y) ) during the reaction. ( (X),(Y) ) and
( (Z) ) respectively are:
( mathbf{A} cdot C_{6} H_{5} C O C H_{3}, C H I_{3}, C_{6} H_{5} C O O H )
в. ( C H_{3} C O C H_{3}, C H I_{3}, C H_{3} C O O H )
( mathbf{c} cdot C_{6} H_{5} C O C H_{3}, C H I_{3}, C H_{3} C O O H )
D. ( C H_{3} C H O, C H I_{3}, C_{6} H_{5} C O O H )
12
798 Assertion
Benzaldehyde does not undergoes aldol condensation
Reason
Benzaldehyde does not contain acidic ( alpha )
-Hydrogen
A. Statement- -I is True, Statement-II is True ; Statement-I is a correct explanation for Statement-
is NOT a correct explanation for Statement-
c. statement-l is True, Statement-II is False
D. Statement-lis False, Statement-II is True
12
799 The major product in the following at ( 25^{circ} mathrm{C} ) is: ( C H_{3} C O O H^{C H_{3} C H_{2} N H_{2}} )
( mathbf{A} cdot C H_{3} C O N H C H_{2} C H_{3} )
B ( cdot C H_{3} C H=N C H_{2} C H_{3} )
( mathbf{c} cdot N H_{3}^{+} C H_{2}^{-} C H_{3} cdot C H_{2} C O O^{-} )
D. ( C H_{2} C O N=C H C H_{3} )
12
800 Lower carboxylic acid are soluble in
water due to:
A. low molecular weight
B. hydrogen bonding
c. dissociation into ions
D. easy hydrolysis
12
801 ( 0^{2} )
( 0^{text {then }} ) ( sigma )
( sigma )
12
802 Which of the following is nucleophilic
addition reaction?
A. Hydrolysis of ethyl chloride by ( N a O H )
B. Purification of acetaldehyde by ( mathrm{NaH} mathrm{SO}_{3} )
C. Alkylation of anisol
D. Decarboxlation of acetic acid
12
803 ( frac{8}{8} ) 12
804 Which of the following alkenes on reductive ozonolysis will give a mixture of ketones?
( mathbf{A} cdot C H_{3} C H=C H C H_{3} )
в. ( left(C H_{3}right)_{2} C=C H C H_{3} )
( mathbf{c} cdotleft(C H_{3}right)_{2} C=Cleft(C H_{3}right)_{2} )
D. None of these
12
805 The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoro acetic acid (B), acetic acid (C)
and formic acid (D) is
A. ( A>B>C>D )
в. ( A>C>B>D )
с. ( B>A>D>C )
D. ( B>D>C>A )
12
806 Above conversion can be achieved by :
A ( cdot ) Li ( A l H_{4} )
в. ( N a B H_{4} )
c. ( H_{2} / N i )
( mathrm{D} cdot mathrm{CrO}_{3} )
12
807 The IUPAC name of above structure is :
A. phenyl ethanone
B. methyl phenyl ketone
( c . ) acetophenone
D. phenyl methyl ketone
12
808 Benzaldehyde undergoes reaction due to
of ( alpha ) -hydrogen atom.
A. Cannizzaro’ presence
B. Cannizzaro; absence
c. Henry’s; absence
D. Henry’s; presence
12
809 Question 3. How do you explain the absence of aldehyde group in the
penta acetate of D-glucose?
Free aldehyde group –CHO) gives reaction with Tollen’s reagent, Fehling
reagent etc.
12
810 ( sigma_{0} )
( @_{0} )
( sigma_{0} )
( sigma_{0} )
12
811 Give the names of the functional
groups:
(I) ( -mathbf{C H O} )
12
812 The most likely acid-catalysed aldol
condensation products of each of the
two aldehydes ( I ) and ( I I ) will respectively
be
and
( A )
and
B.
and
( c )
and
( D )
and
12
813 2. On vigorous oxidation by alkaline permanganate
solution, (CHỊ) C=CH-CH,CHO gives:
OH OH
(a) (CH3)2C-CH –CH,CH2
CH
(b)
CO + CHỊCH,COOH
CH-OH + CH3CH2CH2OH
()
CH3
(d)
CO + CHỊCH,CHO
CH,
(AIEEE 2002)
12
814 ( b )
( d )
12
815 What is the IUPAC name of ( boldsymbol{C H}_{3} boldsymbol{C H}= )
( boldsymbol{C H}-boldsymbol{C O O H} ? )
A. 2-Butenoic acid
B. Crotonic acid
c. 2-Butanoic acid
D. 3-Butenoic acid
12
816 Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions. Ethanal, Propanal, Propanone, Butanone
A. Butanone < Propanone <Propanal < Ethanal
B. Propanone <Butanone >Propanal
c. Propanal < Ethanal < Propanone < Butanone
D. Ethanal <Propanal<Propanone <Butanone
12
817 In the given sequence of reactions, predict ( (boldsymbol{X}) )
( (boldsymbol{X}) frac{boldsymbol{K O H}}{boldsymbol{H}_{2} boldsymbol{O}}(boldsymbol{Y}) frac{boldsymbol{A l}_{2} boldsymbol{O}_{3}}{4 boldsymbol{3} boldsymbol{3} boldsymbol{K}}(boldsymbol{Z}) stackrel{[boldsymbol{O}]}{longrightarrow} )
( 2 m o l C H_{3} C O O H )
( mathbf{A} cdot C H_{3} C H_{2} C H(I) C H_{3} )
в. ( C H_{3} C H_{2} C H_{2} C H_{2} I )
c. ( C H_{3} C H(I) C H(I) C H_{3} )
D. ( C H_{3} C H(I) C H_{2} C H_{2} I )
12
818 Green house effect is caused by
A ( . N O_{2} )
в. ( C O )
( c cdot C O_{2} )
D. ( O_{2} )
12
819 The correct IUPAC name of the
compound is:
A. 3,3 -dimethyl-3-cyclopentyl propanal
B. 3-Cyclopentyl-3-methyl butanal
C. ( 1-(1 ) -methyl-1-formyl to ethylcyclopropane
D. 3,3 -diethyl-3-cyclobutyl butanal
12
820 oxylic acids contain carbonyl group but do not show the
nucleophilic addition reaction like aldehydes or ketones. Why?
Ans. Carboxylic aci
12
821 Which is a common standard for
calibrating a bomb calorimeter in teaching laboratories?
A . Acetic acid
B. Benzoic acid
c. Picric acid
D. Pheno
12
822 Which is most reactive towards soda –
lime decarboxylation?
( A )
B.
( c )
D.
12
823 Reagent (C) is:
( mathbf{A} cdot O_{3} / P h_{3} P )
( mathbf{B} cdot O_{3} / N a B H_{4} )
( mathbf{c} cdot O_{3} / H_{2} O_{2} )
D. ( K M n O_{4} / ) O ( H )
12
824 Assertion
The second dissociation constant of fumaric acid is greater than maleic
acid.
Reason
Higher the dissociation constant of acid
more is the acidic character.
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
825 The given structure show bondline
formula of 2, 3-Dimethylbutanal
A. True
B. False
12
826 0 toppr 5
Q Trpesourr
a.
в.
( c_{0} cdot d- )
o.
12
827 Name the following compound according to the IUPAC system or
nomenclature:
( boldsymbol{C H}_{3} boldsymbol{C O C H}_{2} boldsymbol{C O C H}_{3} )
12
828 ( boldsymbol{H} boldsymbol{C} boldsymbol{H} boldsymbol{O} stackrel{text {Reduction}}{longrightarrow} boldsymbol{A} stackrel{boldsymbol{P}}{longrightarrow} )and( quad boldsymbol{I}_{2} )
( boldsymbol{B} stackrel{boldsymbol{K C N}}{longrightarrow} boldsymbol{C} stackrel{boldsymbol{H y d r o l y s i s}}{boldsymbol{D}} )
What is ( D ? )
A . Acetic acid
B. Ethylamine
c. Acetamide
D. None of these
12
829 Give the structure of the compound
Phenyl acetaldehyde
12
830 IUPAC name of compound is:
A. 3,3 -dimethylpropanoic acid
B. 2-methylbutanoic acid
c. 3-Methylbutanoic acid
D. none of these
12
831 Explain why:
Acetaldehyde undergoes aldol condensation, but formaldehyde does
not
12
832 In the reaction sequence:
Cyclohexane ( frac{h nu / C l_{2}}{longrightarrow}(X) frac{a l c . K O H / Delta}{longrightarrow} )
( (boldsymbol{Y}) frac{(i) boldsymbol{O}_{3}}{(i i) boldsymbol{H}_{2} boldsymbol{O} / boldsymbol{Z} boldsymbol{n}}(boldsymbol{Z}) )
( (Z) ) will be :
A. Hexanal
B. 2- Hexanone
c. 3 – Hexanone
D. Hexanedial
12
833 IUPAC name of the above compound is:
A. bicyclo[3,2,1]-octan-2-oic acid
B. bicyclo-[3,2,1]-octane-8-carboxylic acid
C. bicyclo-[3,2,1]-octan-8-oic acid
D. none of these
12
834 A strong base can abstract an ( alpha ) hydrogen from:
A. ketone
B. alkane
c. alkene
D. amine
12
835 The organic acid that can be made from ethanol is:
A . acetic acid
B. formic acid
( mathbf{c} cdot C_{3} H_{7} O H )
D. valeric acid
E. butanoic acid
12
836 Considering all possible isomeric ketones, including stereoisomers of a compound having a molecular weight of
100. All these isomers are
independently reacted with ( mathrm{NaBH}_{4} ). The total number of ketones that give a racemic product(s) is/are:
[Note: stereoisomers are also reacted
separately]
12
837 The compound (A) is:
(D) ( quad(mathrm{C})+mathrm{CO}_{2} )
( left(mathrm{C}_{3} mathrm{H}_{6} mathrm{O}right) )
( A )
B.
( c )
D.
12
838 Identify the compound A among the
following compounds.
A. o-terephthalic acid
B. o-terephthalaldehyde
C. Salicylic acid
D. None of these
12
839 Arrange the following in the increasing order of their reactivity towards nucleophilic addition reaction:
[
mathrm{cH}_{3} mathrm{CocH}_{3}, mathrm{HCHO}, mathrm{cH}_{3} mathrm{CHO},langle/ sqrt{ }rangle-mathrm{cocH}_{3}
]
12
840 Which of the following reaction(s)
is/are wrong?
( A )
B.
( c )
D. None of the above
12
841 Which of the following ( beta ) -keto carboxylic acid does not undergo decarboxylation on heating?
( A )
в.
( c )
D. None of these
12
842 For the following reaction, which of the
following statements is correct?
A. Ring (A) is oxidised
B. Ring
(B) is oxidised
C. Both are oxidised
D. None is oxidised
12
843 The reagent used in Wolff-Kishner
reduction is:
A. ( N H_{2}-N H_{2} ) and ( K O H ) in ethylene glycol
в. ( Z n-H g / ) сопс. ( H C l )
c. ( N a B H_{4} )
D. ( N a-H g / H_{2} O )
12
844 Acetyl chloride cannot be obtained by treating acetic acid with:
A. ( C H C l_{3} )
в. ( P C l_{3} )
c. ( P C l_{5} )
D. ( S O C l )
12
845 126. A triene treated with ozone followed by CH, -S-CH,
to give following three products. What is the structure
of triene?
H
Product =
HHHYY
H H
H
0 O
12
846 Which of the compounds shown will react with dimethyl malonate in the presence of methoxide ion to give a compound, which on treatment with aqueous acid and gentle heating will decarboxylate to form butanoic acid?
A. ( C H_{2} C H C H_{2} ) СООН
в. ( C H_{3} C H_{2} B r )
c. ( C H_{3} C H_{2} C O C H_{3} )
D. ( C H_{3} C H_{2} C H_{2} B r )
12
847 0
0
0
( frac{0}{0} )
12
848 IUPAC name of given compound is :
[
mathrm{CH}_{3}-mathrm{CH}_{2}-underset{mathrm{CHO}}{mathrm{C}} mathrm{H}-stackrel{mathrm{CH}_{3}}{mathrm{C}} mathrm{H}-mathrm{CH}_{2}-mathrm{CH}_{3}
]
A. 4-Methylhexanal-3
B. 3-Ethyl-2-methylpentanal
c. 2-Ethyl-3-methylpentanal
D. 4-Methylheptanal
12
849 Which of the following compounds has
maximum volatility?
( A )
в.
( c )
D.
12
850 ( frac{8}{8} ) 12
851 How is ethanoic acid prepared from dry
ice?
12
852 An important reaction of acetone is autocondensation in presence of concentrated sulphuric acid to give the aromatic compound
A . Mesitylene
B. Mesityl oxide
c. Trioxan
D. Phorone
12
853 Which of the following reagents may by used to distinguish between phenol and benzoic acid?
A . Neutral ( F e C l_{3} )
B. Aqueous ( N a O H )
c. Tollen’s reagent
D. Schiff’s reagent
12
854 (B) is resolvable but ( (A) ) is not. 12
855 Q. 46 Assertion (A) Aldehydes and ketones, both react with Tollen’s reagent
to form silver mirror.
Reason (R) Both, aldehydes and ketones contain a carbonyl group.
12
856 An organic compound (E) ( left(C_{5} H_{8}right) ) on hydrogenation gives a compound (F)
( left(C_{5} H 12right) . ) Compound (E) on ozonolysis gives formaldehyde and 2-ketopropanal. Deduce the structure of the compound
(E).
A. cyclopentene
B. 1,4 pentadiene
c. 1,3 pentadiene
D. 2 methyl 1,3 butadiene
12
857 Carboxylic acids have higher boiling points than aldehydes, ketones and
even alcohols of comparable molecular mass. It is due to their
A. more extensive association of carboxylic acid via van der Waals force of attraction
B. formation of intramolecular H-bonding
c. formation of intermolecular H-bonding
D. formation of carboxylate ion
12
858 Among the following compounds, which one has maximum boiling point?
A. Propionic acid
B. Ethyl methyl ketone
c. n- butyraldehyde
D. n-pentane
12
859 134. Which of the following compounds producee
1,5-cyclooctanedione on ozonolysis?
12
860 Aldehydes upto are colourless
liquids.
A ( . C_{11} )
в. ( C_{12} )
( c cdot C_{13} )
D. ( C_{1} )
12
861 Write the common name and IUPAC
name of the following.
(a) ( C H_{3} C H_{2} C H O )
(b) ( boldsymbol{C H}_{3} boldsymbol{C O C H}_{3} )
( (c) C H_{3}-underset{mid O H}{C} H-C H_{3} )
(d) ( C H_{3} C O O H )
(e) ( H C H O )
12
862 Lower aldehyde and ketones attributed to the formation of ( _{–}-_{-}- ) bonding with water molecules.
A. Sigma bonding
B. pii bonding
c. covalent bonding
D. Hydrogen bonding
12
863 ( pi ) bonds are formed by the
overlap of orbitals.
12
864 Choose the correct answer among the alternatives given:
Study the following sequence of reaction and identify the compounds
( (X) ) and ( (Y) )
A. ( X= ) Benzaldehyde, ( Y= ) Benzoic acid
B. ( X=2 ) -Chlorotoluene, ( Y=2 ) -chlorobenzoic acid
c. ( X=2, ) 4 – Dichlorobenzene, ( Y= ) Benzoic acid
12
865 Name the following compound according to the IUPAC system or nomenclature:
( boldsymbol{C H}_{3} boldsymbol{C H}=boldsymbol{C H C H O} )
12
866 Acid present in honey bee sting is:
A. formic acid
B. propanoic acid
c. butanoic acid
D. none of these
12
867 Arrange the following carboxylic acids in increasing order of reactivity towards thermal decarboxylation reaction:
( A cdot|<||<|||<mid V )
c. ( |<| V<|<| )
12
868 Complete the following reaction and identify the products formed 12
869 Formaldehyde polymerises to give:
A. Paraformaldehyde
B. Paraldehyde
c. Formalin
D. Formic acid
12
870 Which of the following is/are soluble in
water?
A. Lower esters
B. Lower carboxylic acids
c. Lower alcohol
D. All of the above
12
871 Consider the ester benorylate (an
analgesic) shown below.
The correct statement regarding the
rate of base-catalyzed hydrolysis of
benorylate is:
This question has multiple correct options
A . a nitro group substitution at ( C 4 $ ) will increase the rate
B. a methoxy group substitution at ( C 4 ) will decrease the rate
c. a nitro group substitution at ( C 4 ) will decrease the rate
D. a methoxy group substitution at ( C 4 ) will increase the rate
12
872 Name the following compounds according to IUPAC system of
nomenclature:
(i) ( boldsymbol{C H}_{3} boldsymbol{C H}left(boldsymbol{C H}_{3}right) boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{C H O} )
(ii)
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C O C H}left(boldsymbol{C}_{2} boldsymbol{H}_{5}right) boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{C l} )
(iii) ( boldsymbol{C H}_{3} boldsymbol{C H}=boldsymbol{C H C H O} )
(iv) ( boldsymbol{C H}_{3} boldsymbol{C O C H}_{2} boldsymbol{C O C H}_{3} )
( (v) )
( boldsymbol{C H}_{3} boldsymbol{C H}left(boldsymbol{C H}_{3}right) boldsymbol{C H}_{2} boldsymbol{C}left(boldsymbol{C H}_{3}right)_{2} boldsymbol{C O C H}_{3} )
(vi) ( left(boldsymbol{C H}_{3}right)_{3} boldsymbol{C C H}_{2} boldsymbol{C O O H} )
( left(text { vii) } boldsymbol{O} boldsymbol{H} boldsymbol{C} boldsymbol{C}_{6} boldsymbol{H}_{4} boldsymbol{C H} boldsymbol{O}-boldsymbol{p}right. )
12
873 Which of the following converts acetone to acetone oxime?
A. ( H_{2} N-N H_{2} )
в. ( 2,4- ) DNP
c. ( C_{6} H_{5} N H N H_{2} )
D. ( N H_{2} O H )
12
874 In the reaction ( mathrm{CH}_{3} mathrm{OH} rightarrow mathrm{HCOOH} ), the
number of electrons that must be
addad to the right is :
A .4
B. 3
( c cdot 2 )
D.
12
875 The number of geometrical isomers of
( A ) can be :
( (mathbf{A}) )
( A )
B. 3
( c )
( D )
12
876 what is the proauct or the rollowıng
reaction?
( c )
2
12
877 ( alpha- ) amino acid when heated with
NaOH/CaO forms:
A. ( alpha, beta ) -unsaturated acid
B. ( alpha, beta ) -unsaturated amine
c. carboxylic acid
D. Amine
12
878 The strongest acid is:
A. acetic acid
B. trichloroacetic acid
C . dichloroacetic acid
D. monochloroacetic acid
12
879 following reaction:
( boldsymbol{C}_{6} boldsymbol{H}_{6}+boldsymbol{D}_{2} boldsymbol{S} boldsymbol{O}_{4} stackrel{D_{2} boldsymbol{O}}{longrightarrow} boldsymbol{X} )
( A )
B.
( c )
( D )
12
880 Rosenmund reduction is used for
the preparation of
A. carboxylic acid
B. aldehydes
c. esters
D. alcohols
12
881 Polarity of carbonyl group increase with increase of
A. electronegative groups
B. electropositive groups
C . neutral group
D. none of these
12
882 Arrange in the order of nucleophilicity:
( boldsymbol{H O}^{-}, boldsymbol{C H}_{3} boldsymbol{O}^{-}, boldsymbol{C H}_{3} equiv )
( boldsymbol{C}^{-}, boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C O O}^{-} )
A. ( H O^{-}>C H_{3} O^{-}>C H_{3} equiv C^{-}>C H_{3} C O O )
в. ( C H_{3} C O O^{-}>H O^{-}>C H_{3} O^{-}>C H_{3} equiv C^{-} )
C. ( H O^{-}<C H_{3} O^{-}<C H_{3} equiv C^{-}<C H_{3} C O O^{-} )
D. ( C H_{3} C O O^{-}<H O^{-}<C H_{3} O^{-}<C H_{3} equiv C^{-} )
12
883 8
( 3= )
( Delta x )
( 4 times 0 )
8
12
884 Which of the following has an aldehyde functional group?
A. ( R-C O O H )
в. ( R-C H O )
c. ( R-C O-R )
D. ( R-C O O-R )
E ( . R-C O-N H_{2} )
12
885 Which of the following is most readily hydrolysed by aqueous NaOH solution.
( A )
в.
( c )
D.
12
886 Aldol condensation will not be observed
in?
A. Chloral
B. Phenyl acetaldehyde
c. Hexanal
D. Ethanal
12
887 The suitable reagent(s) will be:
A ( cdot C r O / H_{2} O / ) acetone
( mathbf{B} cdotleft[A gleft(N H_{3}right)_{2}right)^{oplus}(text {aqueous}), H^{+} )
c. ( C r O / H C l / ) pyridine
( D )
соома
12
888 The IUPAC name of the given compound
( boldsymbol{C H}_{3} boldsymbol{C H}left(boldsymbol{C H}_{3}right) boldsymbol{C H O} ) is ( boldsymbol{x} )
methylpropanal. What is ( x ? )
12
889 Which is wrong IUPAC name?
This question has multiple correct options
( mathbf{A} cdot C H_{3} C H_{2} C H_{2} C O O C H_{2} C H_{3}(text { Ethylbutanoate }) )
B. ( C H_{3} C H C H_{2} C H O ) (3-Methyl butanol)
[
begin{array}{l}_{C H_{3}}end{array}
]
( mathbf{c} cdot C H_{3}-C H-C H-C H_{3} quad ) (2-Methyl-3-butanol)
[
begin{array}{l}mid \ O H quad C H_{3}end{array}
]
D. ( C H_{3} C H C O C H_{2} C H_{3} ) (2-methyl-3-pentanone)
[
begin{array}{l}C H_{3}end{array}
]
12
890 Which acid is used in medicine for the
treatment of gout?
A. Hydrochloric acid
B. Methanoic acid
c. Ethanoic acid
D. None of these
12
891 ( sum_{i}^{infty} ) 12
892 Question 1. Why is there a large difference in the boiling points of
butanal and butan-1-ol?
12
893 ( boldsymbol{R} boldsymbol{C O C l}+boldsymbol{H}_{2} stackrel{boldsymbol{P d}-boldsymbol{B a S O}_{4}}{boldsymbol{R} boldsymbol{C H} boldsymbol{O}}+ )
HCl. The reaction is known as:
A. Rosenmund reduction
B. Stephen’s reaction
c. Wolff-Kishner reduction
D. Clemmensen’s reduction
12
894 ( = )
( sigma )
( sigma )
12
895 ( boldsymbol{C H}_{3} boldsymbol{C O O H} frac{C a(boldsymbol{O H})_{2}}{boldsymbol{Delta}} boldsymbol{A} frac{boldsymbol{C a}(boldsymbol{O O C H})_{2}}{boldsymbol{lambda}} )
( boldsymbol{B} stackrel{N H_{2} O boldsymbol{H}}{longrightarrow} boldsymbol{C} )
Identify the ‘ ( C^{prime prime} ) in the given series
( stackrel{mathrm{H}_{3} mathrm{C}}{mathrm{H}_{3} mathrm{C}} mathrm{C}=mathrm{NOH} )
в. ( C H_{3} C H=N O H )
( mathbf{c} cdot H_{2} C=N O H )
D. ( C H_{3} C H_{2} C H=N O H )
12
896 opo
yo
12
897 Do me reagent which does not react with both, acetone and benzaldehyde?
(a) Sodium hydrogen sulphite
(b) Phenyl hydrazine
(c) Fehling’s solution
(d) Grignard reagent
12
898 (a) Zn-Hg/HCI
>
M
35.
(b) NH, NHM/KOH

Using high
boiling solvent
N
HO
(c) HI/P
(a) Mis
(b) Nis
НО
(c) Yis
(d) All of these are correct
12
899 Which of the following chemical is used in making metal polishes:
A . oxalic acid
B. methanoic acid
c. both A and B
D. none of these
12
900 Which one of the following reactions is
not correct?
( mathbf{A} cdot C H_{3} C H O+frac{1}{2} O_{2} stackrel{M n(O A c) 2 / a i r}{rightarrow} C H_{3} C O O H )
B. ( C H_{3} C H_{2} O H+O_{2}^{text {Micodermaceti}} C H_{3} C O O H+H_{2} O )
c. ( C H_{3} M g B r underbrace{(1) C O_{2}}_{(2) H_{2} O oplus} C H_{3} C O O H+M g(O H) B r )
( mathrm{D} cdot mathrm{CH}_{3} mathrm{O} mathrm{H}+mathrm{CO}^{mathrm{Ca} / Delta_{rightarrow, text {prssure}}} mathrm{CH}_{3} mathrm{COOH} )
12
901 1 mole
31. Ph—MgBr + (CH3)-CH-C-C1
> [X] Zn-HQ/HCI > [YI
Identify structure of [Y].
(a) PháCH, CH–CH,
CH,
(b) Ph-CH-CH2-CH,
CH
CH,
(c) Ph C-CH,
CH
(4) O-CH, CH, CH,
CH
12
902 Assertion
Aldehyde have lower boiling point than
ether.
Reason
Aldehydes are less polar than ether.
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
903 Ouestion 11. Write down functional isomers of a carbonyl compound
with molecular formula C H,0. Which isomer will react faster with
HCN and why? Explain the mechanism of the reaction also. Will the
reaction lead to the completion with the conversion of whole reactant into
product at reaction conditions? If a strong acid is added to the reaction
mixture what will be the effect on concentration of the product and why?
12
904 o-Xylene on ozonolysis will give:
( A )
B.
( & )
( c )
( D )
0
12
905 ( mathrm{X} ) and ( mathrm{Y} ) in the below reaction are
and ( _{-}-_{-}- ) respectively
( boldsymbol{C}_{6} boldsymbol{H}_{5}-boldsymbol{C O}_{2} boldsymbol{H}+boldsymbol{X} stackrel{text {heat}}{longrightarrow} boldsymbol{C}_{6} boldsymbol{H}_{5}- )
( C O C l frac{H_{2}, P d / B a S O_{4}}{Q u i n o l i n e}> )
A. ( S O C l_{2} ) and ( C_{6} H_{5} C H O )
B . ( (C O C l)_{2} ) and ( C_{6} H_{5} C H_{3} )
c. ( operatorname{SOCl}_{2} ) and ( C_{6} H_{5} C H_{3} )
D. ( (C O C l)_{2} ) and ( C_{6} H_{5} C H_{2} O H )
E ( . S O C l_{2} ) and ( C_{6} H_{5} C H_{2} C l )
12
906 What is the structural formula of
fumaric acid?
( A )
[
text { HOOC }-mathbf{C}-mathbf{C H}_{3}
]
B.
[
mathbf{H}_{3} mathbf{C}-mathbf{C}-mathbf{C O O H}
]
( c )
D.
HOOC ( -mathbf{C}-mathbf{H} )
12
907 Which of the following is most reactive towards electrophilic nitration?
A. Toluene
B. Benzene
c. Benzoic acid
D. Nitrobenzene
12
908 Which of the following is the strongest
acid?
A. ( C H_{3} ) СООН
в. ( C H_{2} ) СlСООН
c. ( C H C l_{2} C O O H )
D. ( C C l_{3} ) СООН
12
909 ( frac{-}{8} )
( d )
( frac{6}{6} )
0
12
910 toppr
Q Type your question
(iii) ( mathrm{CH}_{3} mathrm{MgBr} )
( (mathrm{iv}) mathrm{H}_{3} mathrm{O}^{8} )
( A )
( B )
( c )
( D )
12
911 product (c)is.
( A )
B.
( c )
( D )
12
912 The product ( C ) is (according to the image shown)
( A cdot A )
B. B
( c cdot c )
D.
12
913 A monobasic acid A has neutralization
equivalent 116 and does not decolorize Bayer’s regent. Also, A is enantiomeric.
A on treatment with ( B r_{2} / r e d ) phosphorus produces B which is still resolvable. B on dehydrobromination produced C which shows stereoisomerism ( C ) on decarboxylation produced. D which does not show stereoisomerism. Deduce structures of
( A, B, C, ) and ( D )
12
914 In which pairs first compound is weak acid than the second?
This question has multiple correct options
A. Adipic acid, succinic acid
B. Fumaric acid, maleic acid
c. Phthalic acid, terepthalic acid
D. Salicylic acid, o – toluic acid
12
915 Which of the compounds with
molecular formula ( C_{5} H_{10} ) yields acetone on ozonolysis?
A. 2-Methyl-1-butene
B. 2-Methyl-2-butene
c. 3-Methyl-1-butene
D. Cyclopentane
12
916 In the reaction sequence, ( C_{2} H_{5} C l+ ) ( K C N stackrel{C_{2} H_{5} O H}{longrightarrow} X frac{H_{3} O oplus}{Delta} Y, ) what is the
molecular formula of Y?
( mathbf{A} cdot C_{3} H_{6} O_{2} )
в. ( C_{3} H_{5} N )
c. ( C_{2} H_{4} O_{2} )
D. ( C_{2} H_{6} O )
12
917 Out of aldehyde and ketones, which is more reactive towards nucleophilic
addition?
A. Aldehyde
B. Ketone
c. Equally reactive
D. cannot be predicted
12
918 The final product ( (Y) ) in the following sequence of chemical reaction is:
( boldsymbol{C H}_{3} boldsymbol{O H} frac{boldsymbol{C u}}{mathbf{3 0 0}^{circ} boldsymbol{C}} boldsymbol{X} stackrel{boldsymbol{N a O H}}{longrightarrow} boldsymbol{Y}+ )
( boldsymbol{C H}_{3} boldsymbol{O} boldsymbol{H} )
( A ). an alkene
B. a carboxylic acid
c. an aldehyde
D. sodium salt of carboxylic acid
12
919 What is the final product ( ^{prime} C^{prime} ) in the following reaction? ( boldsymbol{C H}_{3} boldsymbol{C H O} stackrel{boldsymbol{H C N}}{longrightarrow} boldsymbol{A}^{prime} stackrel{boldsymbol{H}_{2} boldsymbol{O}^{+}}{longrightarrow} )
( ‘ boldsymbol{B}^{prime} frac{text {sodalime}}{longrightarrow} boldsymbol{C}^{prime} )
A. Propane
B. Propanol
c. Ethanol
D. Propanoic acid
12
920 Q Type your question
( A )
COOH
B
( c )
coof
( D )
12
921 Which is the main functional group in Acrolein?
A. Aldehyde
B. Alkene
c. Nitrile
D. Ester
12
922 (i) Write Hell – Volhard – Zelinsky reaction.
(ii) Write cross – aldol condensation.
(iii) Ethanoic acid is weaker acid than
benzoic acid. Why?
12
923 12. In which of the following reactions, the Kolbe’s
electrolysis product is incorrectly mentioned?
2 COOK
Electrolysis
COOK
(b) KOOC
Electrolysis
COOK = >
A
(c) ACOGOK Elecrosis, w
El
(d) CH-CH2-CH-COOK Electrolysis,
12
924 Cannizzaro reaction will be given by:
(iv) ( mathrm{cH}_{3} ) сно
( A cdot(i),(text { ii) }, ) (iii)
B. (i) and (ii)
c. (ii) and (iii)
D. (i) and (iv)
12
925 Which of the following carboxylic acids undergoes decarboxylation easily?
A. ( C_{6} H_{5} ) СОСН( _{2} ) СООН
в. ( C_{6} H_{5} ) СОСООН
c. ( C_{6} H_{5} C H-underset{O H}{_{O H}} ) С ООН
D. ( C_{6} H_{5} ) СНСООН
( N H_{2} )
12
926 11. The compound formed as a result of oxidation of ethyl
benzene by KMnOis:
(a) benzophenone (b) acetophenone
(c) benzoic acid (d) benzyl alcohol
12
927 What is the general name of pentanal
( left(boldsymbol{C}_{4} boldsymbol{H}_{boldsymbol{g}} boldsymbol{C H O}right) ? )
12
928 Name the following compound according to the IUPAC system or
nomenclature :
( left(boldsymbol{C H}_{3}right)_{3} boldsymbol{C C H}_{2} boldsymbol{C O O H} )
12
929 Which of the following reagents converts both acetaldehyde and acetone
to alkanes?
A ( . N i / H_{2} )
в. LiАlH( _{4} )
( mathbf{c} cdot I_{2} / N a O H )
D. zn-Hg/conc. HCI
12
930 In which of the following reactions product will be aldehyde? This question has multiple correct options
( A )
[
mathrm{CH}_{3}-mathrm{C}=mathrm{C}-left.mathrm{C}_{2} mathrm{H}_{5} frac{(mathrm{i}) mathrm{O}_{3}}{mathrm{CH}_{3}}right|_{mathrm{CH}_{3}}
]
в. ( C H_{3}-C H=C H_{2} frac{C O / H_{2} / C O_{2}(C O)_{8}}{Delta} )
c. ( C H_{3}-C equiv C H frac{B_{2} H_{6}}{N a O H, H_{2} O_{2}} )
D. ( C H_{3}-C equiv C H stackrel{H O H / H g S O_{4} / H_{2} S O_{4}}{longrightarrow} )
12
931 H0 (US)
0.1 Addition of water to alkvnes occurs in acidic medium and in the
sence
of HgC+ ions as a catalyst. Which of the follo
as a catalyst. Which of the following products will be formed
on addition of water to but-1-vne under these conditions:
o
(a) CH3 – CH2 – CH3C-H
(b) CH2 – CH2-C-CH
O
(C) CH3 -CH-C-OH + CO,
(d) CH3-C-OH + H-C-H
12
932 Which of the following is used as a food preservative?
A. Aldehydes
B. Ketones
c. carboxylic acid
D. Alcohol
12
933 9.
Liquid …………… is used to preserve donated organs.
12
934 lo. 38 Match the common names given in Column I with the IUPAC names
given in Column II.
02:
A.
B.
C.
D.
E.
Column 1
(Common names)
Cinnamaldehyde
Acetophenone
Valeraldehyde
Acrolein
Mesityl oxide
2.
3.
Column II
(IUPAC names)
Pentanal
Prop-2-en-al
4-methylpent-3-en-2-one
3-phenylprop-2-en-al
1-phenylethanone
5.
12
935 Find the product in the given reaction. 12
936 The compound (A) is:
( A )
в.
c.
D. Both (a) and (b)
12
937 Which of the following compounds will undergo Cannizzaro reaction?
A. ( C H_{3} C H O )
в. ( C H_{3} ) СОСН( _{3} )
( mathbf{c} cdot C_{6} H_{5} C H O )
D. ( C_{6} H_{5} C H_{2} C H O )
12
938 The IUPAC name of the given compound
is:
A . 1-hydroxycyclohex-4-en-3-one
B. 1-hydroxycyclohex-3-en-5-one
c. 3-hydroxycyclohex-5-en-1-one
D. 5-hydroxycyclohex-2-en-1-one
12
939 How can you change propane nitrile to propanal? 12
940 The correct rate of reaction of given
compounds towards electrophilic
aromatic substitution reaction is:
A ( cdot(b)>(d)>(a)>(c) )
B. ( (b)>(a)>(d)>(c) )
C. ( (c)>(a)>(d)>(b) )
D. ( (a)>(b)>(d)>(c) )
12
941 Which one of the following reactions is called Rosenmund reaction?
A. Aldehydes are reduced to alcohols.
B. Acids are converted to acid chlorides.
c. Alcohols are reduced to hydrocarbons.
D. Acid chlorides are reduced to aldehydes.
12
942 Question 4. Arrange the following compounds in increasing order of
their reactivity in nucleophilic addition reactions.
) Ethanal, propanal, propanone, butanone.
(ii) Benzaldehyde, p-tolualdehyde, p-nitro b enzaldehyde,
acetophenone.
Reactivity depends on two factors: Steric effect and electronic effect
Lesser the steric hindrance, higher is the reactivity.
12
943 The acid in which ( – ) COOH group is
(are) present? This question has multiple correct options
A. ethanoic acid
B. picnic acid
c. lactic acid
D. palmitic acid
12
944 What is the IUPAC name for ( C H_{3} C H O ? )
A . Acetal
B. Methanal
c. Ethanal
D. Acetaldehyde
12
945 The treatment of ( left(boldsymbol{C H}_{3}right)_{2} boldsymbol{C}=boldsymbol{C H} boldsymbol{C H}_{3} )
with boiling ( K M n O_{4} ) produces :
A. ( C H_{3} C O C H_{3}+C H_{3} C O O H )
B. ( C H_{3} C O C H_{3}+C H_{3} C H O )
c. ( C H_{3} C H O+C O_{2} )
D. ( C H_{3} C O C H_{3} ) only
12
946 ( boldsymbol{C H}_{3}-boldsymbol{M} boldsymbol{g}-boldsymbol{B r}+boldsymbol{C O}_{2} rightarrow boldsymbol{X} stackrel{boldsymbol{H}_{3} boldsymbol{O} oplus}{longrightarrow} )
( Y ) In this reaction Y is :
( mathbf{A} cdot H C O O H )
в. ( C H_{3} ) СООН
с. ( C_{2} H_{5} )СООН
D. ( H C H O )
12
947 What is meant by Oxime? Give an example of reaction(with mechanism) showing its formation. 12
948 Benzene carbaldehyde is reacted with concentrated ( N a O H ) solution to give the products ( A ) and ( B ). The product ( A ) can be used as food preservative and the product ( B ) is an aromatic hydroxy compound where ( O H ) group is linked to
( s p^{3} ) hybridised carbon atom next to
benzene ring. The products ( A ) and ( B ) respectively are :
A. sodium benzoate and phenol
B. sodium benzoate and phenyl methanol
c. sodium benzoate and cresol
D. sodium benzoate and picric acid
12
949 The final product of the following sequence of reaction is? ( left(boldsymbol{C H}_{3} boldsymbol{O}right)_{2} boldsymbol{C H} boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{B r} stackrel{M g}{longrightarrow} )
( stackrel{boldsymbol{H}_{2} boldsymbol{C}=boldsymbol{O}}{longrightarrow} underset{boldsymbol{h e a t}}{boldsymbol{H}_{3}} stackrel{boldsymbol{rho}}{_{boldsymbol{h e a t}}} )
( ^{text {A. }} quad_{C H_{3} O C C H_{2} C H_{2} C H_{2} C H_{2} O H}^{0} )
в. ( _{|}^{o} )
( C H_{3} C C H_{2} C H_{2} C H_{2} C H_{2} O H )
( c )
( _{mathrm{H}}^{mathrm{O}} )
( mathrm{CCH}_{2} mathrm{CH}_{2} mathrm{CH}_{2} mathrm{CH}_{2} mathrm{OH} )
12
950 Which is enolisable?
A. Benzophenone
B. 2, 4 – pentanedione
c. phenyl- t- butyl ketone
D. All the above
12
951 The compound formed as a result of
oxidation of ethyl benzene by ( boldsymbol{K} boldsymbol{M} boldsymbol{n} boldsymbol{O}_{4} )
is:
A. acetophenone
B. benzophenone
c. benzoic acid
D. benzaldehyde
12
952 How many geometrical isomer of ( (boldsymbol{X}) ) is
possible?
12
953 Identify Z in the given reaction. ( mathrm{CH} equiv mathrm{CH} frac{mathrm{H}_{2} mathrm{SO}_{4}+mathrm{HgSO}_{4}+60^{0} mathrm{C}}{longrightarrow} boldsymbol{Z} )
A ( cdot C_{2} H_{5} I )
в. ( C_{2} H_{5} O H )
с. ( C H I_{3} )
D. ( C H_{3} C H O )
12
954 (B), (C), and (D), respectively, are:
( A )
( (mathrm{I}) )
( (mathrm{III}) )
B. (I), (III), (II)
c. ( (| 1),(text { II ) },(1) )
D. (III), (I), (II)
12
955 Which of the following does not possess alpha hydrogen?
A. Acetaldehyde
B. Formaldehyde
c. Acetone
D. Phenyl acetaldehyde
12
956 Write the ( I U P A C ) names of the
following ketones and aldehydes. Wherever possible, give also common
names.
A ( cdot C H_{3} C Oleft(C H_{2}right)_{4} C H_{3} )
в. ( C H_{3} C H_{2} C H B r C H_{2} C Hleft(C H_{3}right) C H O )
c. ( C H_{3}left(C H_{2}right)_{5} C H O )
D. ( P h-C H=C H-C H O )
12
957 129. Select the best starting material for the following
reaction:
03, Zn-H20
III
HH
12
958 Q. 25 Name the electrophile produced in the reaction of benzene with benzoyl
chloride in the presence of anhydrous ALC 3. Name the reaction also.
12
959 ( 0-0 )
( 0-0 )
( 0=0 )
( 0-0 )
12
960 (a) Write a test to distinguish between aldehydes and ketones.
(b) How will you prepare benzaldehyde by Etard’s reaction?
(c) How will you bring about the following conversions? (Write the chemical equations)
(i) Ethanol ( rightarrow ) Ethanoic acid
(ii) Benzamide ( rightarrow ) Benzoic acid
(iii) Benzaldehyde ( rightarrow ) Meta nitrobenzaldehyde.
12
961 Which alkene on ozonolysis gives above
mention product? ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H O} ) and ( boldsymbol{C H}_{3} underset{|}{C} boldsymbol{C H}_{3} )
A ( cdot C H_{3} C H_{2} C H=Cleft(C H_{3}right) )
B. ( C H_{3} C H_{2} C H=C H C H_{2} C H_{3} )
c. ( C H_{3} C H_{2} C H=C H C H_{3} )
D. ( C H_{3}-C_{text {। }}=C H C H_{3} )
12
962 ( (mathbf{1}) boldsymbol{C}_{6} boldsymbol{H}_{5}-stackrel{mathbf{0}}{boldsymbol{C}}-boldsymbol{C}_{mathbf{6}} boldsymbol{H}_{mathbf{5}} )
( (2) C_{6} H_{5}-C H O )
( (mathbf{3}) boldsymbol{p}-boldsymbol{C} boldsymbol{H}_{3}-boldsymbol{C}_{6} boldsymbol{H}_{4}-boldsymbol{C} boldsymbol{H} boldsymbol{O} )
( (4) p-C H_{3} O-C_{6} H_{4}-C H O )
Correct order for nucleophilic addition reaction.
A ( .2>1>3>4 )
4 ( 4>1>3>1>3>1>3>2 ) 4
в. ( 4>3>2>1 )
c. ( 2>3>4>1 )
D. ( 4>2>3>1 )
12
963 On ozonolysis, ethylene gives:
A. aldehyde
B. ketone
c. carboxylic acid
D. ether
12
964 ( frac{0}{frac{0}{6}} ) 12
965 IUPAC name of the compound ( boldsymbol{C H}_{3}- ) ( boldsymbol{C H}_{2}-stackrel{0}{boldsymbol{C}}-boldsymbol{C H}_{2}-stackrel{0}{boldsymbol{C}}-boldsymbol{C O O H} )
A. hexanedione – 2, 4-ic-1-oic acid
B. 2, 4- dioxohexanoic acid
c. propionyl-dioxo-oic acid
D. none of these
12
966 a. Both (A) and (B) are resolvable. 12
967 (a) Write a note on Rosenmund
reduction.
(b) Why is fluoroacetic acid more acidic than chloroacetic acid?
(c) Draw the resonating structures of carboxylate ion.
12
968 Formalin ( 40 % ) indicates:
A. ( 40 % ) water, ( 6 % ) formaldehyde
B. ( 40 % ) water, ( 60 % ) formaldehyde
C. ( 60 % ) water, ( 40 % ) formaldehyde
D. ( 4 % ) water, ( 69 % ) formaldehyde
12
969 Choose the correct answer among the alternatives given:
In the following reaction, product ( (P) ) is:
( boldsymbol{R}-stackrel{|}{boldsymbol{C}}-boldsymbol{C l} frac{boldsymbol{H}_{2}}{boldsymbol{p} boldsymbol{d} / boldsymbol{B a S O}_{4}} boldsymbol{P} )
A. ( R C H O )
в. ( R C H_{3} )
c. ( R C O O H )
D. ( R C H_{2} O H )
12
970 The ( p K_{a} ) values for the three ionizable
groups ( X, Y ) and ( Z ) of glutamic acid ( 4.3,9.7 a n d 2.2 ) respectively.
The isoelectric point for the amino acid
is:
[
begin{aligned}
mathrm{H} mathrm{O}_{2} mathrm{C}-mathrm{CH}_{2} &-mathrm{CH}-mathrm{CO}_{2} mathrm{H} \
mathrm{X} &+mathrm{NH}_{3}
end{aligned}
]
A . 7.00
B. 3.25
c. 4.95
D. 5.95
12
971 The correct order of following
compounds for increasing reactivity
towards electrophilic substitution is:
B. ( |I|<|<|<mid V )
C. ( |<| V<|| mid<| )
D. ( |<| 1<1<I V )
12
972 ( C_{6} H_{5} C H_{3} frac{C r O_{2} C l_{2}}{longrightarrow} A stackrel{H_{2} O}{longrightarrow} B )
The functional group present in ( mathrm{B} ) and name of the reaction would be :
A. ( -C H O ), Gattermann aldehyde synthesis
B. ( -C H O ), Etard reaction
c. ( -C O C H_{3} ), Friedel Crafts reaction
D. ( -C H O ), Oxo reaction
12
973 Which of the following methods is/are correct for the synthesis of :
A. ( mathrm{PhBr} frac{(1) mathrm{Li}(2) mathrm{CuII}(3) mathrm{Pr} mathrm{COC}}{(4) 2 mathrm{n}-mathrm{Hg} / mathrm{HCl}} )
B. ( mathrm{PhCOPr} quad ) Zn-Hg/HCl
( c )
( mathrm{PhCOPr} frac{mathrm{NH}_{2} mathrm{NH}_{2}}{_{mathrm{OH}, Delta}^{circ}} )
( D )
12
974 Diacetone alcohol is also known as
A. 4 -hydroxy butyraldehyde
B. 4 -Hydroxy- 4 -methyl-2-pentanone
c. but-2-en-1-al
D. butan- 2,4 -dione
12
975 A ketone has molar mass ( 86 . ) Which of
the following cannot be IUPAC name of this ketone?
A. 2 -pentanone
B. 2-methyl butanone
c. 3 -methyl butanone
D. 3 -pentanone
12
976 An enantiomerically pure acid is treated with a racemic mixture of an
alcohol having one chiral carbon. The ester formed will be:
A. optically active mixture
B. pure enantiomer
c. meso compound
D. racemic mixture
12
977 How are carboxylic acids prepared using Grignard reagent? 12
978 ( sqrt[4]{0} x+cos (infty) )
.700
( $ )
( $ 0 )
( tan )
12
979 Which of the following carboxylic acids is a tricarboxylic acid?
A . Oxalic acid
B. Citric acid
c. succinic acid
D. Adipic acid
12
980 Soaps and detergent industries uses:
A . lower fatty acids
B. higher fatty acids
c. esters
D. alcohols
12
981 Match the column. 12
982 n-butyl benzene on oxidation will give:
A. benzoic acid
B. butanoic acid
c. benzyl alcohol
D. benzaldehyde
12
983 Fill in the blanks.
begin{tabular}{llll}
S.No. & Molecular formula & Common name & IUPA nam \
hline ( 1 . ) & ( mathrm{CH}_{3} mathrm{COOH} ) & ( ldots ) & Ethan acid \
hline ( 2 . ) & ( mathrm{HCHO} ) & Formaldehyde & ( ldots ) \
hline
end{tabular}
12
984 ( frac{d}{d} ) 12
985 Identify ( A )
A. ( H C H O )
( mathbf{B} cdot C H_{3} C H O )
( mathbf{C} cdot C_{6} H_{5} C H O )
( mathrm{D} cdot mathrm{CH}_{3} mathrm{COCH}_{3} )
12
986 A neutral organic compound A has
formula ( C_{9} H_{16} O_{3} ) and rotates plane
polarized light. A on acid hydrolysis
produces ( mathrm{B} ) and ( Cleft(C_{3} H_{8} Oright) . ) C on partial
oxidation with PCC gives ( Dleft(C_{3} H_{6} Oright) ) which does not give iodoform test. D on treatment with dilute solution of
( N a O H operatorname{gives} Eleft(C_{6} H_{12} O_{2}right) ) which is
diastereomeric. E on treatment with the
acidic solution of ( K M n O_{4} ) produces ( B )
Deduce structures of A to E.
12
987 ( begin{array}{cc}boldsymbol{O H} & boldsymbol{C H}_{3} \ boldsymbol{C H}_{3}-boldsymbol{C H}-boldsymbol{C} boldsymbol{H}-boldsymbol{C H}-boldsymbol{C H O} & mid \ & boldsymbol{O H}end{array} )
The IUPAC name is:
A. 4 -hydroxy-1-methylpentanal
B. 3, 4-dihydroxy-2-methylpentanal
c. 2 -hydroxy- 4 -methylpentanal
D. 2, 3-dihydroxy-4-methylpentanal
12
988 The number of moles of Grignard
reagent consumed per mole of the
compound is:
( A )
B.
( c )
( D )
12
989 Ozonolysis of which molecule give this
product?
A. 1,2 dimethyl cyclohexyne
B. Dodecene
c. 1,2 dimethyl cyclohexene
D. None of these
12
990 ( boldsymbol{R} boldsymbol{C O C l}+boldsymbol{H}_{2} stackrel{boldsymbol{P d}+boldsymbol{B a S O}_{4}}{longrightarrow} boldsymbol{A} stackrel{boldsymbol{H C N}}{longrightarrow} boldsymbol{B} stackrel{boldsymbol{H}_{3} boldsymbol{O}}{longrightarrow} )
( C )
In the reaction sequence ( A, B ) and ( C ) are given by the set:-
( begin{array}{llll}text { A. } R C H O, & R C H(O H) C N, & R C H(O H) C H_{2} N H_{2}end{array} )
в. ( R C H O, quad R C H(O H) C N, quad R C H(O H) C O O H )
( c )
( mathrm{RCHO} )
D. ( R C H O, quad R-C H_{2}-C N, quad R-C H_{2}-C O O H )
12
991 The IUPAC name of the given compound
is :
A. ( 4- ) hydroxy-z-pentanone
B. 2-hydroxy-4-pentanone
c. 2-oxo-4-pentanol
D. 4-keto-2-pentanol
12
992 Which of the following statement is true
statement?
A. Aldehydes and ketones have lower boiling points than alcohols and carboxylic acids of comparable molecular masses.
B. Aldehydes and ketones have higher boiling points than alcohols and carboxylic acids of comparable molecular masses.
C. Aldehydes and ketones have lower boiling points than alcohols but higher boiling points than carboxylic acids of comparable molecular masses.
D. Aldehydes and ketones have higher boiling points than alcohols but lower boiling points than carboxylic acids of comparable molecular masses.
12
993 CUCI
All aromatic compound ‘A’ (molecular formula C H20) gives positive
4. *-UNP test. It gives a yellow precipitate of compound ‘B’ on treatment
with iodine and sodium hydroxide solution. Compound ‘A’ does not give
Tollen’s or Fehling’s test. On drastic oxidation with potassium
permanganate it forms a carboxylic acid ‘C’ (molecular formula C H202),
which is also formed alongwith the yellow compound in the above
reaction. Identify A, B and C and write all the reactions involved.
Thinking ProCOC
12
994 ( boldsymbol{A} stackrel{boldsymbol{H C N}}{longrightarrow} boldsymbol{B} stackrel{boldsymbol{H}_{3} boldsymbol{O}^{+}}{longrightarrow} boldsymbol{L} boldsymbol{a} boldsymbol{c t i c} boldsymbol{a c i d} )
Identify ( boldsymbol{A} )
A. ( H C H O )
в. ( C H_{3} C H O )
с. ( C_{6} H_{5} ) СНО
D. ( C H_{3} ) СОСН ( _{3} )
12
995 ( boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C} boldsymbol{H}_{2}-underset{boldsymbol{O}}{|}-boldsymbol{C} boldsymbol{H}_{3} frac{N a N boldsymbol{O}_{2}}{boldsymbol{H} C l} )
Major product of this reaction is:
( mathbf{A} . )
( C H_{3} C H-C_{1} H-C-C H_{3} )
( N O )
B.
[
C H_{3}-C H_{2}-C-C H=N-O H
]
( c )
( C H_{3}-underset{N-O H}{C}-stackrel{0}{N}-C H_{3} )
D. ( C H_{3}-C H_{2}-underset{N-O H}{|}-C H_{3} )
12
996 In this given reaction, glycerol + oxalic acid ( stackrel{210^{circ} mathrm{C}}{rightarrow}[mathrm{X}] )
Product ( [X] ) is :
A. нсоон
B. allyl alcohol
( c )
( mathrm{CHOH} )
D.
12
997 Complete and name the following
reaction.
[
c=0 frac{mathbf{Z n}-mathbf{H g}}{mathbf{H C l}}
]
12
998 The decreasing order of boiling points of the following is :
(।) ( R C O C l,(|)(R C O)_{2} O,(| I) )
( R C O N H_{2},(I V) R C O O H )
A . ।> IV > || > II
B. |||>|| > IV > |
c. IV > III > I> II
D. II >|>||| > IV
12
999 What are the reaction sequences of
glucosazone formation?
12
1000 Correct order of Acidic strength:
( A ). iii ( > ) ii ( >i> ) iv
B. i> iii > ii > iv
c. iv ( >i> ) ii ( > ) iii
D. iii ( > ) iv ( >i> ) ii i
12
1001 Aldol condensation reaction is not given
by:
A. ( C_{6} H_{5} C H_{2} C H O )
в. ( C_{6} H_{5} C H O )
c. ( C H_{3} C H O )
D. ( C H_{3} C O C H_{3} )
12
1002 is
A. An ester
B. An anhydride
C. Acetal
D. Hemiacetal
12
1003 Match the column I with column II. 12
1004 n-Propyl alcohol is obtained on hydrolysis of the adduct obtained by the
reaction of:
A. EtMgX and HCHO
B. MeMgX and ( left(C H_{2}right)_{2} O )
( mathrm{C} cdot mathrm{EtMgX} ) and ( mathrm{O}_{2} )
D. мeMgx and ( C H_{3} C H O )
12
1005 Assertion
Both o-hydroxy benzaldehyde and phydroxy benzaldehyde have same molecular weight and show H-bonding.
Reason

Melting point of p-hydroxy benzaldehyde is more than o-hydroxy benzaldehyde.
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
1006 Assertion
Aromatic aldehydes and formaldehyde undergo Cannizzaro reaction.
Reason
Aromatic aldehydes are almost as reactive as formaldehyde.
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
1007 5
5
5
12
1008 Which of the following statement is
true?
A. Benzaldehyde is used in perfumery industry
B. Formaldehyde is used for silvering mirrors
C. Acetone is used as a commercial solvent
D. All of the above
12
1009 ( M e_{3} C-stackrel{V}{C}-M e frac{[O]}{Delta} )
Find out the major product of the reaction.
12
1010 The decreasing order for acidic strength
¡s:
( mathbf{A} cdot N O_{2} C H_{2} C O O H>N C C H_{2} C O O H> )
( F C H_{2} C O O H>C l C H_{2} C O O H )
B ( cdot F C H_{2} C O O H>N C C H_{2} C O O H> )
( N O_{2} C H C O O H>C l C H_{2} C O O H )
( mathrm{c} cdot mathrm{N} mathrm{O}_{2} mathrm{CH}_{2} mathrm{COOH}>mathrm{FCH}_{2} mathrm{COOH}> )
( C N C H_{2} C O O H>C l C H_{2} C O O H )
D. ( C N C H_{2} C O O H>O_{2} N C H_{2} C O O H> )
( F C H_{2} C O O H>C l C H_{2} C O O H )
12
1011 How many equivalents of HCHO are formed by oxidative cleavage of one equivalent of D-glucose by excess of HIO
in water?
12
1012 What is the compound ( A ? )
A. Oxalic acid
B. Malonic acid
c. Succinic acid
D. Adipic acid
12
1013 WELILA
Q. 29 Compound ‘A’ was prepared by oxidation of compou
prepared by oxidation of compound ‘B’ with alkaline
KM 04. Compound ‘A on reduction with lithium aluminium hydride gets
converted back to compound ‘B. When compound ‘Aisne
compound B in the presence of H.SO, it produces fruity smell of
compound C to which family the compounds ‘A’, ‘B’ and ‘C belong to:
Thinking Process
12
1014 The IUPAC name of the following compound is ethyl ( 4- ) bromo -3
chlorobenzoate
A. True
B. False
12
1015 toppr
Q Type your question
( A )
( B )
( c )
( D )
12
1016 Assertion
When PhCHO is made to react in
( O D^{ominus} / D_{2} O ) no ( D ) is incorporated into
the ( C H_{2} ) of ( P h C H_{2} O H, P h C O O^{-} )
mixture during cannizaro’s reaction
Reason
Intermolecular ( boldsymbol{H}^{ominus} ) transfer takes place
in the rate determining step, with out getting free in solution
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is incorrect but Reason is correct
D. Both Assertion and Reason are correct
12
1017 Vinegar is present in acetic acid. Curd contains ( _{text {the acid. }} )
A . lactic acid
B. tartaric acid
c. citric acid
D. none of these
12
1018 In the following reaction, ( P ) gives two
products ( Q ) and ( R ), each in ( 40 % ) yield
f the reaction is carried out with
( 420 m g ) of ( P . ) the reaction yields
( 108.8 m g ) of ( Q . ) The amount of ( R )
produced in the reaction is closest to:
A. ( 97.6 mathrm{mg} )
B. ( 108.8 mathrm{mg} )
c. ( 84.8 mathrm{mg} )
D. ( 121.6 mathrm{mg} )
12
1019 Identify the correct order of reactivity in electrophilic substitution reactions of the following compounds:
( A cdot|>||>|||>mid V )
B. IV>|||> || > |
c. ॥>।>॥|> >V
D. II>III>1>IV
12
1020 Benzaldehyde is used:
A. as a flavouring agent for food
B. in the manufacture of triphenylmethane dyes like malachite green
C. as a starting material for the preparation of cinnamic acid
D. all of these
12
1021 In addition reactions of aldehydes, the carbonyl carbon atom changes from:
A ( cdot s p^{3} ) to ( s p^{2} )
B ( cdot s p^{2} ) to ( s p^{3} )
c. ( s p ) to ( s p^{3} )
D. ( s p^{3} ) to sp
12
1022 Arrange the following compounds in the increasing order of their boiling points.
( boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H} boldsymbol{O}, boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C} boldsymbol{H} )
( boldsymbol{O}-boldsymbol{C}_{2} boldsymbol{H}_{5}, boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{C}_{2} boldsymbol{H}_{5} )
A ( cdot C H_{3} C H_{2} C H_{2} C H_{2} C H_{3}<H_{5} C_{2}-O-C_{2} H_{5}< )
( C H_{3} C H_{2} C H_{2} C H OH_{5} C_{2}-O-C_{2} H_{5}> )
( C H_{3} C H_{2} C H_{2} C H O<C H_{3} C H_{2} C H_{2} C H_{2} O H )
c. ( C H_{3} C H_{2} C H_{2} C H_{2} C H_{3}<H_{5} C_{2}-O-C_{2} H_{5}C H_{3} C H_{2} C H_{2} C H_{2} O H )
D. ( C H_{3} C H_{2} C H_{2} C H_{2} C H_{3}>H_{5} C_{2}-O-C_{2} H_{5}C H_{3} C H_{2} C H_{2} C H_{2} O H )
12
1023 ( y=2 x )
( y= )
12
1024 The carbonyl compound producing an optically active product by reaction with
( boldsymbol{L} boldsymbol{i} boldsymbol{A} boldsymbol{l} boldsymbol{H}_{4} ) is:
A. propanone
B. butanone
c. 3-pentanone
D. benzophenone
12
1025 ( begin{array}{ll}text { Column I } & text { Column II } \ text { Compound } & text { Uses }end{array} ) 12
1026 Question 8. Why are carboxylic acids more acidic than alcohols or
phenols although all of them have hydrogen atom attached to a oxygen
atom (-0-H)?
12
1027 Which of the following compounds will show the maximum enol content?
A. ( C H_{3} C O C H_{2} C O C H_{3} )
в. ( C H_{3} ) СОСН( _{3} )
c. ( C H_{3} C O C H_{2} C O N H_{2} )
D. ( C H_{3} C O C H_{2} C O O C_{2} H_{5} )
12
1028 A mixture of toluene, benzoic acid, aniline and phenol was dissolved in diethyl ether and extracted with
( 5 % N a H C O_{3} ) solution. This extract
was acidified until a white crystalline compound appeared. What is the identity of this compound?
A. Toluene
B. Benzoic acid
c. Aniline
D. Phenol
12
1029 How is propanone converted into-
(i) Propan – 2 – ol
(ii) 2 – Methylpropan ( -2- ) ol?
12
1030 The structures of two compounds
and ( (I I) ) are given below. Which statement is correct?
( boldsymbol{F}_{2} boldsymbol{C}=boldsymbol{C}=boldsymbol{C} boldsymbol{F}_{2}(boldsymbol{I}) ) and ( boldsymbol{F}_{2} boldsymbol{C}=boldsymbol{C}= )
( boldsymbol{C}=boldsymbol{C} boldsymbol{F}_{2}(boldsymbol{I} boldsymbol{I}) )
A. Reductive ozonolysis of both gave the same product
B. Reductive ozonolysis of both gave different products
c. Reductive and oxidative ozonolysis of both gave different products.
D. Reductive and oxidative ozonolysis of (I) gave the same product but of ( (I I) ) gave different products.
12
1031 Explain Rosenmund’s reduction of benzoyl chloride. 12
1032 Question 13. A hydrocarbon ‘A’ (CH) on reaction with HCl gives a
compound ‘B’ (C,H,CI), which on reaction with 1 mole of NH3 gives
compound ‘C” (CAHUN). On reacting with NaNO, and HCl followed by
treatment with water, compound ‘C’ yields an optically active alcohol, ‘D’.
Ozonolysis of ‘A’ gives 2 moles of acetaldehyde. Identify compounds A’ to
D’. Explain the reactions involved.
12
1033 The name of the compound
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H O} ) is:
A. propanal
B. propanone
c. ethanol
D. ethanal
12
1034 Which compound gives reaction with 2,4-dinitro phenyl hydrazine?
A.
в.
( c )
D. All of these
12
1035 The major product of the following
reaction is:
( A )
( B )
( c )
( D )
12
1036 28. C H2COOH + CH,Mgi —?
(a) CH,COOMg) (b) CH,
(c) Both (a) and (b) (d) None of these
12
1037 Which acid is used in rubber industry as a coagulating agent?
A. Methanoic acid
B. Ethanoic acid
c. Propanoic acid
D. Butanoic acid
12
1038 On acid hydrolysis, propane nitrile gives
A. Propanal
B. Acetic acid
c. Propionamide
D. Propanoic acid
12
1039 Name one aldehyde and ketone with high boiling point and one with low boiling point. 12
1040 ( boldsymbol{P h C} equiv boldsymbol{C M e} frac{boldsymbol{H}_{3} boldsymbol{O}^{+}, boldsymbol{H} boldsymbol{g}^{2+}}{rightarrow} )
Identify the product in the reaction.
( mathbf{A} cdot P h C H_{2} C H_{2} C H O )
в. ( operatorname{Ph} mathrm{hOCH}_{2} mathrm{CH}_{3} )
( mathbf{c} cdot P h C H_{2} C O C H_{3} )
D. Рh СОСОМ
12
1041 A compound with molecular formula
( C_{8} H_{18} O_{4} ) does not give litmus test and
does not give colour with ( 2,4- ) DNP. It
reacts with excess ( M e C ) OCl to give a compound whose vapour density is 152 Compound ( A ) contains how many
hydroxy groups?
A . 1
B. 2
( c .3 )
D. 4
12
1042 Arrange the following acids in
decreasing order of ( left[boldsymbol{H}^{+}right] ) conc.
( mathrm{cH}_{2}=mathrm{cHCH}_{2}-mathrm{cooH} quad mathrm{cH}_{3} mathrm{CH}_{2} mathrm{coot} )
(II
A ( . I>I I>I I I )
В. ( I I>I I I>I )
c. ( I I>I>I I I )
D. ( I I I>I I>I )
12
1043 Which of the following can be used as a
solvent for cellulose acetate, cellulose
nitrate, and celluloide?
A. Formaldehyde
B. Acetaldehyde
c. Acetic acid
D. Acetone
12
1044 Which of the following is the correct description of ( C ? )
A. It is ethanolic acid
B. It is 2-hydroxy ethanal
c. It is 2 -hydroxy oxirane
D. It can be either ( B ) or ( C )
12
1045 Final major product of this reaction is:
A ( cdot C H_{3} C_{H_{2}}^{14} C H_{3} )
В ( cdot C_{H_{3}}^{14} C H_{2} C H_{3} )
( mathbf{c} cdot c_{H_{3}} C_{H_{2}-C H O}^{14}-C H O )
D. ( C_{H_{3}-C H_{2}-C H O}^{14}-C_{3}-C H O )
12
1046 Consider the following reaction
sequence, ( boldsymbol{C H}_{3} boldsymbol{C} equiv boldsymbol{C H} frac{2 operatorname{mole}}{boldsymbol{H C l}} boldsymbol{A} frac{boldsymbol{H e a t}}{boldsymbol{a q . K O H}} boldsymbol{B} )
The products ( (A) ) and ( (B) ) are, respectively:
( mathbf{A} cdot(A): C H_{3} C H_{2} C H C l_{2} ) and ( (mathbf{B}): C H_{3} C H_{2} C H O )
B . (A): ( C H_{3} C(C l)_{2} C H_{3} ) and
(В): ( C H_{3} C O C H_{3} )
c. ( (mathrm{A}): C H_{3} C(C l)_{2} C H_{3} ) and
(В): ( C H_{3} C equiv C H )
D・(A): ( C H_{3} C H(C l) C H_{2} C l ) and
(В) ( : C H_{3} C H(O H) C H_{2} C l )
12
1047 ( boldsymbol{C H} equiv boldsymbol{C}-boldsymbol{C H}_{3} frac{40 % boldsymbol{H}_{2} boldsymbol{S O}_{4}}{1 % boldsymbol{H g S O}_{4}} boldsymbol{B} )
Then, ( B ) is :
A. acetone
B. trichloroacetone
c. acetaldehyde
D. chloral
12
1048 Cyanohydrin of which compound on hydrolysis will give lactic acid?
A. ( C_{6} H_{5} C H O )
в. ( H C H O )
c. ( C H_{3} C H O )
D. ( C H_{3} C H_{2} C H O )
12
1049 a) An organic compound (A) of
molecular formula ( C_{7} H_{6} O ) is not reduced by fehling’s solution but will undergo cannizaro reaction. Compound
(A) reacts with aniline to give compound (B)
compound
(A) also reacts with ( C l_{2} ) in
the absence of catalyst to give compound
(C). Identify ( A, B ) and ( C ) and explain the reactions.
b) The ( K_{a} ) of propanoic acid is ( 1.34 times )
( 10^{-5} . ) What is the ( p H ) of a solution
containing 0.5M propanoic acid and 0.5M sodium propanoate?
12
1050 Name the following compounds according to the IUPAC system or
nomenclature:
( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C O C H}left(boldsymbol{C}_{2} boldsymbol{H}_{5}right) boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{C l} )
12
1051 If the following transformation is done with an alkene as an intermediate
product, an aldehyde with ( x ) number of carbons is produced alongside with benzaldehyde. What is ( x ) ?
12
1052 ( mathrm{CH}_{3}-mathrm{C}_{mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{C}}^{mathrm{O}} mathrm{CH}_{3} ) 12
1053 Assertion
Malonic acid ( left(boldsymbol{H} boldsymbol{O} boldsymbol{O} boldsymbol{C}-boldsymbol{C} boldsymbol{H}_{2}-right. )
COOH ) does not form cyclic anhydride
on heating.
Reason
It is like ( beta ) – keto acid, on heating it
prefer to decarboxylate.
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
1054 An aromatic hydrocarbon has the
molecular formula ( C_{10} H_{14} . ) Upon
oxidation with boiling alkaline ( boldsymbol{K} boldsymbol{M} boldsymbol{n} boldsymbol{O}_{4} )
followed by acidification, it yields benzene dicarboxylic acid. The total
isomers for ( C_{10} H_{14} ) are:
( mathbf{A} cdot mathbf{9} )
B. 8
( c cdot 7 )
D. 6
12
1055 Select the correct statements.
( mathbf{x} )
This question has multiple correct options
( A )
( (mathbf{Y}) )
B. ( (Z) ) has three carbonyl groups
( c )
D. Formation of ( (X) ) involves equilibrium mixture of the iminium salt and the acylated enamine
12
1056 How will you convert ethanal into the following compounds?
But-2-enoic acid
12
1057 Write IUPAC name of the following
compound.
A. 3 -Hydroxy-2-methylpentanoic acid
B. 4 -Methyl-3-hydroxypentanoic acid
c. 3 -hydroxy-4-methylpentanoic acid
D. 2-Methyl-2-hydroxypentanoic acid
12
1058 An aldehyde on oxidation gives
A . an acid
B. an alcohol
c. an ether
D. a ketone
12
1059 2.24 Benzaldehyde can be obtained from benzal chloride. Write reactions for
obtaining benzal chloride and then benzaldehyde from it.
+
12
1060 Arrange the following compound in order of decreasing acidic strength. 12
1061 An organic compound with the
molecular formula ( C_{8} H_{8} O ) forms ( 2,4- )
DN P derivative, reduces Tollen’s
reagent and undergoes Cannizzaro reaction. On vigorous oxidation, it gives
1, 2-benzenedicarboxylic acid. The organic compounds is
A. 2 -ethylbenzaldehyde
B. 2-methylbenzaldehyde
c. acetophenone
D. 3-methylbenzaldehyde
E. henylacetaldehyde
12
1062 Which of the following compound is more acidic?
( ^{mathbf{A}} cdot_{C H_{2}-C}^{circ}-O H )
No
в. ( _{C H_{2}}-C H_{2}-stackrel{circ}{C}-O H )
( N O_{2} )
2
c.
[
begin{array}{l}C H_{2}-C H_{2}-C-O H \ text { I }end{array}
]
D.
[
C H_{3}-begin{array}{c}c_{1} \ _{1} \ C \ C lend{array}-C_{-} O H
]
12
1063 An organic acid ( boldsymbol{A}left(boldsymbol{C}_{5} boldsymbol{H}_{10} boldsymbol{O}_{2}right) ) reacts
with ( B r_{2} ) in presence of phosphorus to produce a resolvable compound B. B on dehydrobromination yields C. C does not show geometrical isomerism and on decarboxylation gives an alkene D. D on ozonolysis gives ( mathrm{E} ) and ( mathrm{F} ). Compound ( mathrm{E} ) gives positive Schiff’s test but F does not. Give structures of ( A ) to ( F )
12
1064 Which of the following carboxylic acid is most acidic in character –
A. o-methyl benzoic acid
B. m-methyl benzoic acid
c. p-methyl benzoic acid
D. Benzoic acid
12
1065 How will you carry out the following reactions? Write relevant balanced
equations and name the reactions.
(i) Acetyl chloride to acetaldehyde
(ii) Acetamide to methyl-amine
12
1066 Give product in following reactions 12
1067 ( boldsymbol{O} )
( boldsymbol{P h}-hat{boldsymbol{C}}-boldsymbol{O}-boldsymbol{C P h}_{3} frac{boldsymbol{H}_{3}^{18} boldsymbol{O} oplus}{longrightarrow} )
Product of this reaction is:
B. ( o^{18} )
( P h-C-O H+P h_{3} C-O H )
c. ( _{text {I }}^{o} )
Ph ( -C-O H+P h_{3} C-O H )
D.
[
P h-C-O H+P h_{3} C-O H
]
12
1068 ( boldsymbol{H} boldsymbol{C} equiv boldsymbol{C} boldsymbol{H} frac{(i) mathbf{2} boldsymbol{N} boldsymbol{a}}{(i i) mathbf{2} C boldsymbol{O}_{2}}(boldsymbol{A}) frac{boldsymbol{H}_{2} / boldsymbol{P} boldsymbol{d}}{boldsymbol{B} boldsymbol{a} boldsymbol{S} boldsymbol{O}_{4}}(boldsymbol{B}) )
What is B?
( mathbf{A} cdot H_{2} C=C H-C O O^{-} N a^{+} )
( mathbf{B} cdot: H_{3} C-C H_{2}-C O O^{-} N a^{+} )
( mathbf{c} cdot H_{2} C=C H-C H_{2} O H )
( mathbf{D} cdot H_{3} C-C H_{2}-C H_{2} O H )
12
1069 What is the reagent used in Etard
reaction?
A. Chromyl chloride
B. Ethanoyl chloride
c. ( S n C l_{2} ) and ( H C l )
D. Cadmium chloride
12
1070 Which is (are) correct out of the
following:

This question has multiple correct options
A ( cdot C H_{2}=C H_{2}<H-C equiv C-H )
(rate of electrophilic addition)
B.
gena
( mathbf{c} )
substitution reaction)
D.

12
1071 Describe Fisher-Tropsch process in the manufacture of propanone with equations two uses. 12
1072 * Assertion (A) The a-hydrogen atom in carbonyl compounds is less
acidic.
Reason (R) The anion formed after the loss of a-hydrogen atom is
resonance stabilised.
12
1073 What will be the prefix in the following compound? HOOC ( -boldsymbol{C H}_{2} )
( boldsymbol{H O O C}-boldsymbol{C H}-boldsymbol{2}-boldsymbol{C H}-boldsymbol{C H}_{2}- )
( boldsymbol{C H}_{2}-boldsymbol{C O O H} )
A. methycarboxy
B. carboxymethyl
c. carboxyethyl
D. ethylcarboxy
12
1074 The compound(B) in the below reaction
is :
( C_{2} H_{5} C l stackrel{K C N}{rightarrow} A^{H_{3}} Q^{+} B )
A. ethylene chloride
B. acetic acid
c. propionic acid
D. ethyl cyanide
12
1075 If ( 3- ) hexanone is reacted with
( N a B H_{4} ) followed by hydrolysis with
( D_{2} O, ) the product will be :
( mathbf{A} cdot C H_{3} C H_{2} C H(O H) C H_{2} C H_{2} C H_{3} )
B. ( C H_{3} C H_{2} C D(O H) C H_{2} C H_{2} C H_{3} )
c. ( C H_{3} C H_{2} C H(O D) C H_{2} C H_{2} C H_{3} )
D. ( C H_{3} C H_{2} C D(O D) C H_{2} C H_{2} C H_{3} )
12
1076 When propyne is treated with aqueous sulphuric acid in presence of mercuric sulphate, the major product is
A. propanal
B. propyl hydrogen sulphate
c. propanol
D. propanone
12
1077 0
0.14 Treatment of compound Ph-0-0-Ph with NaOH solution yields
(a) phenol
(b) sodium phenoxide
(c) sodium benzoate
(d) benzophenone
12
1078 Complete the above reactions:
A. Cyclohexanone
B. Cyclohexanoic acid
( mathrm{C} ). Cyclopentanone
D. Cypentanoic acid
12
1079 Find ( A ) and ( B ) 12
1080 Correct order of reactivity of following compounds towards Grignard reagent.
( mathbf{A} cdot mid>|>| 1 )
B. ( |>1>| 1 )
c. ( |>|>1 )
D. ( mid>| 1>11 )
12
1081 The solvent used in Etard reaction
during the formation of benzaldehyde from toluene is :
A. ( C H_{3} ) СООН
в. ( H_{2} ) О
c. La. ( N H_{3} )
D. ( C S_{2} )
12
1082 The major product formed when ( 2- )
butene is reacted with ( O_{3} ) followed by
treatment with ( Z n / H_{2} O ) is
A. ( C H_{3} ) СООН
в. ( C H_{3} C H O )
c. ( C H_{3} C H_{2} O H )
D. ( C H_{2}=C H_{2} )
12
1083 Why is the conversion of ethanol to
ethanoic acid an oxidation reaction?
A. Carbon is oxidized.
B. Hydrogen oxidation number is changed.
c. carbon is reduced
D. carbon undergoes disproportination
12
1084 The reaction of toluene with ( C l_{2} ) in
presence of ( F e C l_{3} ) gives predominantly:
A. benzoyl chloride
B. benzyl chloride
c. ( o ) -and ( p ) -chlorotoluene
D. ( m ) -chlorotoluene
12
1085 General formula of aldehyde is:
A. ( C_{n} H_{2 n} O_{2} )
в. ( C_{n} H_{2 n} O )
c. ( C_{n} H_{2 n+1} O )
D. ( C_{n} H_{2 n+2} O )
12
1086 The compounds shown below have similar weights but significantly different boiling points. Match the compound with its boiling point.
(Boiling points ( left.left(^{o} Cright) 28,57,100,141right) )
A. Methyl acetate=100, 2-butanol=141, 2-methyl butane=28, Propanoic acid=57
B. Methyl acetate=57, 2-butanol=100, 2-methyl butane=28, Propanoic acid=141
c. Methyl acetate=28, 2-butanol=100, 2-methyl butane=57, Propanoic acid=141
D. Methyl acetate=141, 2-butanol=57, 2-methy butane=28, Propanoic acid=100
12
1087 The main product obtained in the
reaction of acetamide and ( boldsymbol{H} boldsymbol{N} boldsymbol{O}_{2} ) is:
A. ( C H_{3} C N )
в. ( C H_{3} N C )
( mathbf{c} cdot C H_{3} N H_{2} )
D. ( C H_{3} ) СООН
12
1088 ( P h-stackrel{0}{C}-O H stackrel{S O C l_{2}}{longrightarrow}(A) underset{P d-B a S O_{4}}{C}(B) )
Product (B) is:
A.
[
P h-C_{-} H
]
в. ( P h-C H_{2}-O H )
c. ( P h-C H_{2}-C l )
D. ( P h-C H=C H_{2} )
12
1089 Which of the following is the flavouring agent for food, beverages etc?
A. Acetone
B. Formaldehyde
c. Benzaldehyde
D. Phenol
12
1090 The correct IUPAC name of the following
compound is:
12
1091 Name the product obtained when
alcohol is added to a carbonyl group in
presence of dry ( boldsymbol{H} boldsymbol{C l} )
12
1092 toppr
Q Type your question
A ( x )
reaction but not haloform reaction,
whereas ( S ) undergoes haloform reaction
but not Cannizzaro reaction.
(i) ( P frac{i) O_{3} / C H_{2} C l_{2}}{i i) Z n / H_{2} O} underset{left(C_{8} H_{8} Oright)}{Q} )
(ii) ( boldsymbol{R} frac{i) boldsymbol{O}_{3} / boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C l}_{2}}{boldsymbol{i} boldsymbol{i}) boldsymbol{Z} boldsymbol{n} / boldsymbol{H}_{2} boldsymbol{O}} boldsymbol{S}_{left(boldsymbol{C}_{8} boldsymbol{H}_{8} boldsymbol{O}right)} )
The option(s) with suitable
combination of ( boldsymbol{P} ) and ( boldsymbol{R} ), respectively, is
( (operatorname{are}) )
This question has multiple correct options
( A )
B.
c.
D.
12

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