Aldehydes, Ketones and Carboxylic Acids
Previous year questions with solutions · 2019 – 2026
15 Questions
6 Papers covered
17.65% Weightage 2026 ▲ 88.2% vs last year
Year-wise statistics questions · papers · average per paper · weightage Year Questions Papers Avg / paper Weightage 2026 6 2 3 17.65% ▲ 88.2% vs last year 2025 3 2 1.5 9.38% ▼ 46.9% vs last year 2024 6 2 3 17.65%
All 15 MCQ 4 Matching 3 Multiple Correct 3 Numerical 5 Topic All topics Alkyne hydration, Clemmensen reduction and soap Cannizzaro reaction and ketal formation Cannizzaro, decarboxylation, Williamson synthesis; yield Chemoselective reduction, lactonisation and stereochemistry Cumene process and haloform reaction Decarboxylation of β-keto acids, cyclic anhydride Kolbe electrolysis, Friedel–Crafts acylation, Rosenmund reduction Oxime reactions: dehydration, SNAr, benzisoxazole Ozonolysis followed by intramolecular aldol Ozonolysis of rubber and intramolecular aldol Ozonolysis, aldol, protection and hydration Preparation of Carboxylic Acids Reaction sequences – product identification Reagent sequence – chemoselective reductions Structure elucidation – ozonolysis, β-keto acid decarboxylation Year All years 2026 2025 2024
Ques. 1 JEE Advanced 2026 (Paper-1)
The List-II contains products obtained from the reaction of compounds in List-I with O3/Zn-H2O followed by cyclization (via more stable enolate) in the presence of aqueous NaOH. Match each entry in List-I with appropriate entry in List-II and choose the correct option.
P ⟶ 2; Q ⟶ 4; R ⟶ 1; S ⟶ 3 P ⟶ 3; Q ⟶ 4; R ⟶ 5; S ⟶ 2 P ⟶ 2; Q ⟶ 1; R ⟶ 5; S ⟶ 3 P ⟶ 3; Q ⟶ 5; R ⟶ 4; S ⟶ 2
Ques. 2 JEE Advanced 2026 (Paper-1)
Match the major products obtained in the reactions given in List-I with the corresponding structures in List-II and choose the correct option.
P → 2; Q ⟶ 1; R → 5; S ⟶ 4 P → 1; Q ⟶ 2; R → 4; S ⟶ 5 P → 1; Q ⟶ 2; R → 3; S ⟶ 4 P → 2; Q ⟶ 1; R → 3; S ⟶ 5
Ques. 3 JEE Advanced 2024 (Paper-1)
List-I contains various reaction sequences and List-II contains the possible products. Match each entry in List-I with the appropriate entry in List-II and choose the correct option.
P-3, Q-5, R-4, S-1 P-3, Q-2, R-4, S-1 P-3, Q-5, R-1, S-4 P-5, Q-2, R-4, S-1