JEE Main Chemistry · Aldehydes, Ketones and Carboxylic Acids

Aldol and Cannizzaro in JEE Main

Name: Aldol and Cannizzaro: JEE Main previous year questions
Creator: Lumi

Aldol and Cannizzaro (Chemistry, Aldehydes, Ketones and Carboxylic Acids) came 8 times in 8 of the 42 JEE Main shifts Lumi analysed, across 6 distinct ideas. 6 of them came in 2024–26; it was last asked in 2026.

Questions: 8; in 8 shifts
Ideas asked: 6; 2 asked more than once
Numerical answer: 0; 0% of its questions
Pattern: Asked most years; last asked 2026

Questions each year

In the shifts Lumi analysed for each year.

Difficulty and format

Easy 1Medium 6Hard 1

Format

Single correct5 Q
Diagram based2 Q
Two statements1 Q

Ideas inside the topic

6 ideas

Intramolecular Aldol2 Q
Intramolecular Cannizzaro Reaction2 Q
Alpha-Hydrogen Acidity1 Q
Cannizzaro Reaction1 Q
Cross-Aldol Condensation1 Q
Self-Aldol Condensation1 Q

Where it sits

Part of Aldehydes, Ketones and Carboxylic Acids, which had 60 questions in all. Aldol and Cannizzaro accounts for 13% of them. In Lumi's JEE taxonomy it belongs to Organic Chemistry.

Every question

All 8 Aldol and Cannizzaro questions

Newest first, each with its options and official answer.

2 Apr 2026, Shift 2 · Q66An organic compound 'x' where molar ratio of C, O and H are equal, on treatment with 50% KOH under reflux followed by acidification…MediumSingle correct
6 Apr 2026, Shift 2 · Q64' $x$ ' is the product which is obtained by the hydrolysis of prop-1-yne in the presence of mercuric sulphate under dilute acidic medium at…MediumSingle correct
2 Apr 2025, Shift 1 · Q68Given below are two statements : Statement (I) : Vanillin ([structure: benzene ring with -CHO, -OH para to CHO and -OCH3 ortho to OH])…MediumTwo statementsHas a figure
3 Apr 2025, Shift 2 · Q68The major product (P) in the following reaction is : $\mathrm{Ph{-}CO{-}CHO}$ $\xrightarrow[\Delta]{\mathrm{KOH}}$ P (Major Product)MediumDiagram basedHas a figure
8 Apr 2025, Shift 2 · Q68When [structure: $\mathrm{CH_3C(=O)CH_2CH_2CH_2CH_2CHO}$ , a skeletal zigzag chain with a methyl ketone at one end and an aldehyde (C=O…MediumSingle correctHas a figure
30 Jan 2024, Shift 2 · Q78m-chlorobenzaldehyde on treatment with 50% KOH solution yieldsEasyDiagram basedHas a figure
25 Jul 2021, Shift 1 · Q44[figure: 3,3-dimethylcyclopentanone (ketone C=O, gem-dimethyl on adjacent ring carbon) reacts with $\mathrm{CH_3CHO}$ , NaOH to give 'P'…HardSingle correctHas a figure
9 Jan 2020, Shift 2 · Q44In the following reaction A is : A…MediumSingle correctHas a figure