JEE Mains Top 500 PYQs

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Top Previous Year Questions - Carboxylic Acid Derivatives

Question

Which of the following derivatives of alcohols is unstable in an aqueous base?

JEE Main 2020 (05 Sep Shift 1)

Options

  • A:

  • B:
  • C:
  • D: RO-CMe3
Explaination

Question

The product "P" in the above reaction is :

JEE Main 2021 (16 Mar Shift 1)

Options

  • A:
  • B:
  • C:
  • D:
Explaination

Question

The correct sequential addition of reagents in the preparation of 3-nitrobenzoic acid from benzene is:

JEE Main 2021 (26 Aug Shift 1)

Options

  • A: Br2/AlBr3,HNO3/H2SO4,Mg/ ether, CO2,H3O+
  • B: Br2/AlBr3,NaCN,H3O+,HNO3/H2SO4
  • C: Br2/AlBr3,HNO3/H2SO4,NaCN,H3O+
  • D: HNO3/H2SO4,Br2/AlBr3,Mg/ ether, CO2,H3O+
Explaination

Question

Match List - I with List - II.

  List - I
(Chemical Reaction)
  List - II
(Reagent used)
a CH3COOCH2CH3CH3CH2OH i CH3MgBr/H3O+
(one equivalent)
b CH3COOCH3CH3CHO ii H2SO4/H2O
c CH3CNCH3CHO iii DIBAL-H/H2O
d iv SnCl2,HCl/H2O

Choose the most appropriate match.

JEE Main 2021 (26 Aug Shift 2)

Options

  • A: (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
  • B: (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
  • C: (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
  • D: (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
Explaination

Question

Find out the major product for the above reaction.

JEE Main 2022 (28 Jul Shift 2)

Options

  • A:

  • B:

  • C:

  • D:

Explaination

Question

Given below are two statements :

Statement I: The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.

Statement II: Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction.

Choose the most appropriate option

JEE Main 2022 (29 Jun Shift 1)

Options

  • A: Statement I is correct but Statement II is incorrect.
  • B: Both Statement I and Statement II are incorrect.
  • C: Both Statement I and Statement II are correct.
  • D: Statement I is incorrect but Statement II is correct.
Explaination

Question

Major product 'P' formed in the following reaction is 

 Major product

JEE Main 2023 (08 Apr Shift 2)

Options

  • A:
  • B:
  • C:
  • D:
Explaination

Question

In the reaction given below

The product ‘X’ is :

JEE Main 2023 (10 Apr Shift 2)

Options

  • A:
  • B:
  • C:
  • D:
Explaination

Question

The major product ‘P’ formed in the following sequence of reactions is

JEE Main 2023 (12 Apr Shift 1)

Options

  • A:

  • B:

  • C:

  • D:

Explaination

Question

Identify the product \((\mathrm{P})\) in the following reaction:

JEE Main 2024 (08 Apr Shift 1)

Options

  • A:
  • B:
  • C:
  • D:
Explaination

Question

Identify major product ‘P’ formed in the following reaction.

JEE Main 2024 (31 Jan Shift 2)

Options

  • A:
  • B:
  • C:
  • D:
Explaination

Question

The azo-dye Y formed in the following reactions is Sulphanilic acid + NaNO2+CH3COOHX

JEE Main 2024 (31 Jan Shift 2)

Options

  • A:
  • B:
  • C:
  • D:
Explaination

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