COMEDK-UGET SERIES Chemistry
Aldehydes Ketones And Carboxylic Acids
18 previous year questions.
Volume: 18 Ques
Yield: Medium
High-Yield Trend
5
2022 3
2021 1
2015 1
2014 1
2012 2
2011 1
2010 1
2008 2
2007 1
2005 Chapter Questions 18 MCQs
01
PYQ 2005
medium
chemistry ID: comedk-u
Acetophenone when nitrated, the major product obtained is
1
o-nitroacetophenone
2
m-nitroacetophenone
3
p-nitroacetophenone
4
a mixture of o- and p-nitroacetophenone
02
PYQ 2007
medium
chemistry ID: comedk-u
Decarboxylation of an acid can be carried out using
1
lime
2
sodamide
3
caustic soda
4
sodalime.
03
PYQ 2007
medium
chemistry ID: comedk-u
In the acid hydrolysis of methyl acetate ester,
1
acid is taken in excess
2
ester is taken in excess
3
water is taken in excess
4
both ester and water are taken in excess
04
PYQ 2008
medium
chemistry ID: comedk-u
In the decarboxylation of carboxylic acid the reagent used is
1
sodamide
2
caustic soda
3
soda lime
4
quick lime
05
PYQ 2010
medium
chemistry ID: comedk-u
Fehling's reagent contains
1
copper sulphate, Rochelle salt and sodium hydroxide
2
copper sulphate, and sodium acetate
3
copper sulphate, sodium citrate and sodium acetate
4
copper sulphate, HCl and Rochelle salt.
06
PYQ 2011
hard
chemistry ID: comedk-u
Aldol condensation is given by
1
formaldehyde
2
acetaldehyde
3
trichloroacetaldehyde
4
benzaldehyde.
07
PYQ 2011
medium
chemistry ID: comedk-u
Rochelle's salt is
1
sodium citrate
2
sodium potassium citrate
3
potassium tartarate
4
sodium potassium tartarate
08
PYQ 2012
medium
chemistry ID: comedk-u
Which of the following does not undergo aldol condensation reaction?
1
2
3
4
09
PYQ 2014
medium
chemistry ID: comedk-u
Among -chloropropanoic acid, -chloropropanoic acid, -dichloroacetic acid and propanoic acid the values will be in the order,
1
-dichloroacetic acid > -chloropropanoic acid > -chloropropanoic acid > propanoic acid
2
-chloropropanoic acid > -chloropropanoic acid > -dichloroacetic acid > propanoic acid
3
-dichloroacetic acid > -chloropropanoic acid > -chloropropanoic acid > propanoic acid
4
-dichloroacetic acid > propanoic acid > -chloropropanoic acid > -chloropropanoic acid
10
PYQ 2015
easy
chemistry ID: comedk-u
Consider the acid strength of the carboxylic acids: (i) (ii) (iii) (iv)
1
2
3
4
11
PYQ 2021
medium
chemistry ID: comedk-u
Find the final product for the reaction:
1
2
3
4
12
PYQ 2021
medium
chemistry ID: comedk-u
Why do ketones and carboxylic acids have higher boiling points as compared to aldehydes?
1
Due to group
2
Due to Fazan’s rule
3
Due to intermolecular hydrogen bonding
4
Due to intramolecular hydrogen bonding
13
PYQ 2021
medium
chemistry ID: comedk-u
What is the product formed when benzene reacts with CO and HCl in presence of anhydrous AlCl ?
1
2
3
4
14
PYQ 2022
medium
chemistry ID: comedk-u
X and Y in the following reactions are:
(CH3–CH2)2C=O → HCN/KCN → X → LiAlH4 → (CH3)2C(OH)CH2NH2
(CH3–CH2)2C=O → HCN/KCN → X → LiAlH4 → (CH3)2C(OH)CH2NH2
1
X = (CH ) CHCH CN, Y = NaBH
2
X = (CH ) CCOONH , Y = CH NH
3
X = (CH ) C(CN)CH OH, Y = LiAlH
4
X = (CH CH ) C(CN)CH OH, Y = CH NH
15
PYQ 2022
medium
chemistry ID: comedk-u
What can be A and B in the following reaction?
1
HBr, al
2
KOH
3
HBr, Peroxide alc. KOH
4
HBr, Peroxide aq. KOH,
16
PYQ 2022
medium
chemistry ID: comedk-u
Identify the product formed in the given reaction. 
1
2
3
4
17
PYQ 2022
medium
chemistry ID: comedk-u
Find the product formed for the given reaction.
1
C H -CH=CH-CHO
2
C H -CH CH CHO
3
C H -CH -C CHO
4
C H -CH=CH-CHO
18
PYQ 2022
medium
chemistry ID: comedk-u
The major product in the given reaction is
1
toluene
2
p-methyl toluene
3
benzene
4
o-methyl benzene