ALDEHYDES AND KETONES [ ] 2

Aldehydes and Ketones
Ranker
ALDEHYDES AND KETONES
1.
In which of the following reactions, product will be aldehyde?
 
b) CH 3  CH  CH 2 


 3

 ii  H 2O / Zn
CO / H 2 / Co2 CO
iO
a)
PdCl / HOH
c) CH 3  CH  CH 2 
air / CuCl
8
HOH / HgSO H SO
d) CH 3  CH  CH 

2
4
2
2
4
2.
Arrange the reactivity of given four compounds in decreasing order for nucleophilic
addition reaction:
(I) Amide
(II) Ester
(III) Aldehyde
(IV) Ketone
a) I > II > III > IV b) III > IV > II > I c) IV > III > II > I d) III > IV > I > II
3.
In the reaction sequence:

H 2O / H / 
NaCN / HCl
C6 H 5CHO 
  X  

Product] Product will be:
a) Optically inactive acid
b) Optically inactive  -hydroxyl acid
c) Recemic mixture of two optically active  hydroxyl acids
d) Recemic mixure of two optically active secondary alcohols
4.
Which one of the following pairs can be separated by the use of sodium bisulphate?
O
||
CH
CHO
CH

C
 CH 3
a)
and
3
3
O
O
||
||
b) CH 3  CH 2  CH 2  C  CH 3 and C6 H 5  C  CH 3
O
O
||
||
c) CH 3  CH 2  C  CH 3 and CH 3  C  CH 3
CH 3  CH  CH
d) CH3  CH 2  CHO and
|
CH3
5.
Which one of the following compounds will given dimethyl glyoxal with SeO2?
a) Acetone
b) Acetphenonec
c) Ethyl methyl ketone
d) Propanaldehyde
6.
m-Bromoperbenzoic acid can oxidize?
a) Alkene
b) Aldehyde
7.
d) All of these
Arrange the acidity of given four compounds in decreasing oder:
O
O
||
||
CH 3  C  C H  C  CH 3
I 2
CH  CH
III
8.
c) Ketone
O
||
CH 3  C  CH 3
II
CH 3  CH O
IV
a) I > IV > III > II
b) I > IV > II > III
c) III > I > IV > II
d) II > IV > I > III
Carbonyl compounds having  hydrogen given which of the following reactions?
a) Enlisation
b) Halogenation
c) Deuterium exchange reaction
d) All of these
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Aldehydes and Ketones
9.
Ranker
Match Column-I with Column-II (matrix)
Column-I
Column-II
O
||
a) C6 H 5  C  CH 3
p) Micheal addition
b)
q) Iodoform with I2/NaOH
O
||
c) CH 2  CH  C  CH 3
r) Aldol condensation
d)
s) Perkin reaction
t) Cannizzario reaction
10.
a) a-t,r; b-s,t; c-p,q,r; d-s,t
c)a-q,r; b-s,t; c-p,q,r; d-s,t
Product (A) of the reaction is:
b) a-q,r; b-s,r; c-p,q,t; d-s,t
d) a-q; b-r,t; c-p,q,r; d-s,t

2

  P
 ii  
i NaOH / H O
a)
11.
b)
c)
d)
In the reaction sequence:
a)
b)
c)
d)
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Aldehydes and Ketones
12.
Ranker
In the given reaction
[X] will be:

13.
a) Zn/HCl
b) Sn/HCl
c) LiAlH4
d) HCHO / O H
A mixture of acetaldehyde and formaldehyde can be converted into
and formic acid by which of the following reactions?
14.
15.
16.
17.
a) Aldol condensation
c) Tollens reaction
When halide will give witting reaction
b) Cannizzaro reaction
d) Benzoin condensation
a)
c)
b)
d)
In the reaction sequence,
a)
b)
c)
d)
Formaldehyde reacts with ammonia to give:
a) H2C = NH
b)
c)
d) Hexamethylenetetramine
Acetaldehyde reacts with ammonia to form:
Page 3
Aldehydes and Ketones
18.
Ranker
a)
b)
c)
d) Mixture of (a), (b) and (c)
Match the list-I with list=II and select the correct answer using the codes given below
the lists:
List-I
List-II
NaBH
a) H 2C  CH  CHO 
1) Acetal
4

H
b) C6 H 5CHO  CH 3  NH 2 

2) Schiff’s base

H
c) C6 H 5COCH 3  CH 3  CH 2  NH  CH 3 

3) Unsaturated alcohol

H
d) RCHO  2 RCH 2OH 

a) A-3; B-2; C-4; D-1
c) A-2; B-3; C-4; D-1
19.
4) Enamine
b) A-3; B-2; C-1; D-4
d) A-4; B-1; C-2; D-3
In the given reaction,
[Y] will be:
a)
b)
c)
d)
20.
Cross Cannizzaro reaction is an example of:
a) Redox reaction
b) Disproportionation
c) Hydrolysis
d) Oxidation
21.
Which one of the combinations will given propanaldehyde on dry distillation?
a) (C6H5COO)2 Ca and (HCOO)2 Ca
b) (CH3COO)2 Ca and (CH3CH2–COO)2 Ca
c) (CH3–CH2–COO)2 Ca and (HCOO)2 Ca
d) (CH3COO)2 Ca and (CH3COO)2 Ca
In the reaction sequence:
22.
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Aldehydes and Ketones
(C) will be:
a) Hexanal
23.
Ranker
b) 2-Hexanone
c) 3-Hexanone
d) Hexanedinal
c)
d)
In the given reaction
[X] will be:
24.
a)
b)
In the given reaction:
(A) and (B) are:
a)
b)
c)
25.
26.
27.
28.
29.
d)
Arrange the given compounds for reactivity in decreasing order for nucleophilic
addition:
1) HCHO
2) CH3COCH3
3)
a) 4 > 3 > 2 > 1
b) 3 > 4 > 1 > 2
c) 1 > 2 > 3 > 4
d) 1 > 2 > 4 > 3
Which of the following on heating with aqueous KOH produces acetaldehyude? (2009)
(a) CH3COCI
(b) CH3CH2CI
(c) CH2CICH2CI
(d) CH3CHCI2
Trichloroacetaldehyde was subjected to Cannizarois reaction by using NaOH. The
mixture of the products contains sodium trichloroacetate ion and another compound.
The other compound is (2011)
(a) 2, 2, 2-trichlorethanol
(b) Trichloromethanol
(c) 2, 2, 2-tsrichloropropanol
(d) Chloroform
Silver mirror test is given by which one of the following compounds? (2011)
a) Acetaldehyde
b) Acetone c) Formaldehyde
d) Both (a) and (c)
Collin’s reagent is used to convert (2010)
a)  C  O  CHOH
b) CH 2OH  CHO
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Aldehydes and Ketones
30.
Ranker
c) CHO  COOH
d) CHO  CH 2OH
The compound which forms acetaldehyde when heated with dilute NaOH, is (2009)
a) 1, 1-dechloroethane
b) 1, 1, 1-trichloroethane
c) 1-chloroethane
d) 1, 2-dichloroethane
KEY
1
b
11
a
21
c
2
b
12
d
22
d
3
c
13
c
23
b
4
b
14
d
24
a
5
c
15
c
25
c
6
d
16
d
26
d
7
b
17
c
27
a
8
d
18
a
28
d
9
c
19
a
29
b
10
c
20
a
30
a
Page 6

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