Aldehydes, Ketones and Carboxylic Acids
283 Questions
Start JEE Mains Test
2020
Q201
JEE Mains
MCQ
14 Mar 2026
The major product [C] of the following reaction
sequence will be :
A.
B.
C.
D.
2020
Q202
JEE Mains
MCQ
14 Mar 2026
An organic compound (A) (molecular formula
C6H12O2) was hydrolysed with dil. H2SO4 to give
a carboxylic acid (B) and an alcohol (C). ‘C’
gives white turbidity immediately when treated
with anhydrous ZnCl2 and conc. HCl. The
organic compound (A) is :
A.
B.
C.
D.
2020
Q203
JEE Mains
MCQ
14 Mar 2026
[P] on treatment with Br2/FeBr3 in CCl4
produced a single isomer C8H7O2Br while
heating [P] with sodalime gave toluene. The
compound [P] is
A.
B.
C.
D.
2020
Q204
JEE Mains
MCQ
14 Mar 2026
Consider the following molecules and
statements related to them :
(a) (B) is more likely to be crystalline than (A)
(b) (B) has higher boiling point than (A)
(c) (B) dissolves more readily than (A) in water
Identify the correct option from below :
(a) (B) is more likely to be crystalline than (A)
(b) (B) has higher boiling point than (A)
(c) (B) dissolves more readily than (A) in water
Identify the correct option from below :
A.
only (a) is true
B.
(a), (b) and (c) are true
C.
(b) and (c) are true
D.
(a) and (b) are true
2020
Q205
JEE Mains
MCQ
14 Mar 2026
The compound A in the following reaction is :
A.
B.
C.
D.
2020
Q206
JEE Mains
MCQ
14 Mar 2026
The increasing order of the reactivity of the
following compound in nucleophilic addition
reaction is :
Propanal, Benzaldehyde, Propanone, Butanone
Propanal, Benzaldehyde, Propanone, Butanone
A.
Butanone < Propanone < Benzaldehyde <
Propanal
B.
Benzaldehyde < Butanone < Propanone <
Propanal
C.
Propanal < Propanone < Butanone <
Benzaldehyde
D.
Benzaldehyde < Propanal < Propanone <
Butanone
2020
Q207
JEE Mains
MCQ
14 Mar 2026
Two compounds A and B with same molecular
formula (C3H6O) undergo Grignard’s reaction
with methylmagnesium bromide to give
products C and D. Products C and D show
following chemical tests.
C and D respectively are :
C and D respectively are :
A.
B.
C.
D.
2020
Q208
JEE Mains
MCQ
14 Mar 2026
Arrange the following labelled hydrogens in
decreasing order of acidity :
A.
b > c > d > a
B.
b > a > c > d
C.
c > b > d > a
D.
c > b > a > d
2020
Q209
JEE Mains
MCQ
14 Mar 2026
The increasing order of the following
compounds towards HCN addition is :
A.
(iii) < (iv) < (ii) < (i)
B.
(i) < (iii) < (iv) < (ii)
C.
(iii) < (i) < (iv) < (ii)
D.
(iii) < (iv) < (i) < (ii)
2020
Q210
JEE Mains
MCQ
14 Mar 2026
In the following reaction A is :
A.
B.
C.
D.
2020
Q211
JEE Mains
MCQ
14 Mar 2026
Identify (A) in the following reaction sequence :
A.
B.
C.
D.
2020
Q212
JEE Mains
MCQ
14 Mar 2026
An unsaturated hydrocarbon X absorbs two
hydrogen molecules on catalytic hydrogenation and also gives following reaction :
B(3 - oxo - hexanedicarboxylic acid) X will be :-
B(3 - oxo - hexanedicarboxylic acid) X will be :-
A.
B.
C.
D.
2020
Q213
JEE Mains
MCQ
14 Mar 2026
The most suitable reagent for the given conversion is :
A.
LiAlH4
B.
B2H6
C.
NaBH4
D.
H2/Pd
2020
Q214
JEE Mains
MCQ
14 Mar 2026
The predominant intermolecular forces present in ethyl acetate, a liquid, are:
A.
Dipole-dipole and hydrogen bonding
B.
hydrogen bonding and London dispersion
C.
London dispersion, dipole-dipole and hydrogen bonding
D.
London dispersion and dipole-dipole
2020
Q215
JEE Mains
MCQ
14 Mar 2026
What is the product of following reaction ?
A.
B.
C.
D.
2020
Q216
JEE Mains
Numerical
14 Mar 2026
Consider the following reactions
The mass percentage of carbon in A is ______.
The mass percentage of carbon in A is ______.
Correct Answer: 66.66TO66.67
Explanation:
% carbon = ${{48} \over {72}} \times 100$ = 66.67
2020
Q217
JEE Mains
MSQ
14 Mar 2026
An organic compound [A], molecular formula C10H20O2
was hydrolyzed with dilute sulphuric acid to
give a carboxylic acid [B] and an alcohol [C]. Oxidation of [C] with
CrO3 - H2SO4 produced [B]. Which of the following strucutres are not possible for [A]?
CrO3 - H2SO4 produced [B]. Which of the following strucutres are not possible for [A]?
A.
(CH3)3 – C – COOCH2C(CH3)3
B.
CH3CH2CH2COOCH2CH2CH2CH3
C.
D.
2019
Q218
JEE Mains
MCQ
14 Mar 2026
The major products of the following reaction are :
A.
B.
C.
D.
2019
Q219
JEE Mains
MCQ
14 Mar 2026
The major product(s) obtained in the following reaction is/are :
A.
B.
C.
D.
2019
Q220
JEE Mains
MCQ
14 Mar 2026
Compound A(C9H10O) shows positive iodoform test. Oxidation of A with KMnO4/KOH given acid
B(C8H6O4). Anhydride of B is used for the preparation of phenolphthalein. Compound A is:
A.
B.
C.
D.
2019
Q221
JEE Mains
MCQ
14 Mar 2026
The major product 'Y' in the following reaction is :
A.
B.
C.
D.
2019
Q222
JEE Mains
MCQ
14 Mar 2026
Major products of the following reaction are :
A.
B.
C.
D.
CH3OH and HCO2H
2019
Q223
JEE Mains
MCQ
14 Mar 2026
p-Hydroxybenzophenone upon reaction with
bromine in carbon tetrachloride gives:
A.
B.
C.
D.
2019
Q224
JEE Mains
MCQ
14 Mar 2026
The major product of the following reaction is:
A.
B.
C.
D.
2019
Q225
JEE Mains
MCQ
14 Mar 2026
In the following reaction
A.
Propanal as substrate and methanol in
stoichiometric amount.
B.
Acetone as substrate and methanol in
stoichiometric amount
C.
Propanal as substrate and methanol in
excess
D.
Acetone as substrate and methanol in excess
2019
Q226
JEE Mains
MCQ
14 Mar 2026
The major product of the following reaction is :
A.
B.
C.
D.
2019
Q227
JEE Mains
MCQ
14 Mar 2026
The major product obtained in the following
reaction is
A.
B.
C.
D.
2019
Q228
JEE Mains
MCQ
14 Mar 2026
The major product of the following reaction is :
A.
B.
C.
D.
2019
Q229
JEE Mains
MCQ
14 Mar 2026
The major product of the following reaction is :
A.
B.
C.
D.
2019
Q230
JEE Mains
MCQ
14 Mar 2026
The aldehydes which will not form Grignard product with one equivalent Grignard reagents are -
A.
B and D
B.
C and D
C.
B, C and D
D.
B and C
2019
Q231
JEE Mains
MCQ
14 Mar 2026
The major product of the following reaction is –
A.
B.
C.
D.
2019
Q232
JEE Mains
MCQ
14 Mar 2026
In the following reaction :
Aldehyde + Alcohol $\buildrel {HCl} \over \longrightarrow $ Acetal
The best combination is
Aldehyde + Alcohol $\buildrel {HCl} \over \longrightarrow $ Acetal
| Aldehyde | Alcohol | ||
|---|---|---|---|
| HCHO | tBuOH | ||
| CH3CHO | MeOH |
The best combination is
A.
CH3CHO and MeOH
B.
HCHO and MeOH
C.
CH3CHO and tBuOH
D.
HCHO and tBuOH
2019
Q233
JEE Mains
MCQ
14 Mar 2026
The major product of the following reaction is –
A.
B.
C.
D.
2019
Q234
JEE Mains
MCQ
14 Mar 2026
In the following reaction, products A and B are –
A.
B.
C.
D.
2019
Q235
JEE Mains
MCQ
14 Mar 2026
The major product obtained in the following conversion is
A.
B.
C.
D.
2019
Q236
JEE Mains
MCQ
14 Mar 2026
The major product obtained in the following reaction is :
A.
B.
C.
D.
2019
Q237
JEE Mains
MCQ
14 Mar 2026
The major product of the following reaction is :
A.
B.
C.
D.
2019
Q238
JEE Mains
MCQ
14 Mar 2026
What will be the major product in the following mononitration reaction ?
A.
B.
C.
D.
2019
Q239
JEE Mains
MCQ
14 Mar 2026
Which is the most suitable reagent for the following transformation ?
A.
alkaline KMnO4
B.
Tollen's reagent
C.
I2/NaOH
D.
CrO2Cl2/CS2
2019
Q240
JEE Mains
MCQ
14 Mar 2026
The major product obtained in the following reaction is :
A.
B.
C.
D.
2019
Q241
JEE Mains
MCQ
14 Mar 2026
The decreasing order of ease of alkaline hydrolysis for the following esters in
A.
III > II > IV > I
B.
IV > II > III > I
C.
III > II > I > IV
D.
II > III > I > IV
2019
Q242
JEE Mains
MCQ
14 Mar 2026
Which dicarboxylic acid in presence of a dehydrating agent is least reactive to give an anhydride?
A.
B.
C.
D.
2019
Q243
JEE Mains
MCQ
14 Mar 2026
The major product in the following reaction is :
A.
B.
C.
D.
2019
Q244
JEE Mains
MCQ
14 Mar 2026
The products formed in the reaction of cumene with O2 followed by treatment with dil. HCl are :
A.
B.
C.
D.
2019
Q245
JEE Mains
MCQ
14 Mar 2026
The major product of the following reaction is :
A.
B.
C.
D.
2019
Q246
JEE Mains
MCQ
14 Mar 2026
The correct match between Item I and Item II is :
| Item - I | Item - II | ||
|---|---|---|---|
| (A) | Benzaldehyde | (P) | Mobile phase |
| (B) | Alumina | (Q) | Adsorbent |
| (C) | Acetonitrile | (R) | Adsorbate |
A.
(A) $ \to $ (Q); (B) $ \to $ (P); (C) $ \to $ (R)
B.
(A) $ \to $ (R); (B) $ \to $ (Q); (C) $ \to $ (P)
C.
(A) $ \to $ (Q); (B) $ \to $ (R); (C) $ \to $ (P)
D.
(A) $ \to $ (P); (B) $ \to $ (R); (C) $ \to $ (Q)
2018
Q247
JEE Mains
MCQ
14 Mar 2026
Which of the following compounds will most readily be dehydrated to give alkene under acidic condition ?
A.
1- Pentanol
B.
4-Hydroxypentan - 2-one
C.
3-Hydroxypentan - 2-one
D.
2-Hydroxycyclopentanone
2018
Q248
JEE Mains
MCQ
14 Mar 2026
The major product B formed in the following reaction sequence is :
A.
B.
C.
D.
2018
Q249
JEE Mains
MCQ
14 Mar 2026
The major product of the following reaction is :
A.
B.
C.
D.
2018
Q250
JEE Mains
MCQ
14 Mar 2026
The increasing order of the acidity of the following carboxylic acids is :
A.
I < III < II < IV
B.
IV < II < III < I
C.
II < IV < III < I
D.
III < II < IV < I