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Aldehydes, Ketones and Carboxylic Acids

Previous year questions with solutions · 2024 – 2026

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83Questions
54Papers covered
5.05%Weightage 2026same as last year
’24
’25
’26
Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
202624191.35.05% same as last year
202524191.35.05% ▼ 13.2% vs last year
202435211.75.82%

64 questions · newest paper first · page 3 of 3

Ques. 61JEE Main 2024, 30 January (Morning Shift)

In the given reactions, identify the reagent A and reagent B. [figure]

  1. A - CrO3 B - CrO3
  2. A - CrO3 B - CrO2Cl2
  3. A - CrO2Cl2 B - CrO3
  4. A - CrO2Cl2 B - CrO2Cl2
Ques. 62JEE Main 2024, 30 January (Evening Shift)

m-chlorobenzaldehyde on treatment with 50% KOH solution yields :

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 63JEE Main 2024, 29 January (Morning Shift)

The final product A formed in the following multistep reaction sequence is [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 64JEE Main 2024, 29 January (Evening Shift)

Identify the reagents used for the following conversion [figure]

  1. A = LiAlH4, B = NaOH(aq), C = NH2-NH2/KOH, ethylene glycol
  2. A = DIBAL-H, B = NaOH(aq), C = NH2-NH2/KOH, ethylene glycol
  3. A = LiAlH4, B = NaOH(alc), C = Zn/HCl
  4. A = DIBAL-H, B = NaOH(alc), C = Zn/HCl