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JEE Main 2025 · ChemistryMultiple choiceDiagram basedMediumApplication

JEE Main 3 April 2025, Shift 2, Chemistry Q68

Question 68 of 75 in this shift, Chemistry question 18 of 25, Section A.

The major product (P) in the following reaction is :

\mathrm{Ph{-}CO{-}CHO}

\xrightarrow[\Delta]{\mathrm{KOH}}

P (Major Product)

The figure, in words

Reactant drawn as Ph-C(=O)-C(=O)-H (phenylglyoxal) with KOH, heat.

(1) $\mathrm{Ph{-}CH(OH){-}CH_2OH}$
(2) $\mathrm{Ph{-}CH(OH){-}COO^-K^+}$ Official answer
(3) $\mathrm{Ph{-}CO{-}CH_2OH}$
(4) $\mathrm{Ph{-}CO{-}COO^-K^+}$

Official answer

Option 2

NTA final key.

Chapter: Aldehydes, Ketones and Carboxylic Acids
Topic: Aldol and Cannizzaro
Idea tested: Intramolecular Cannizzaro Reaction

Same idea in other shifts

Asked 2× in all

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

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.