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Saturday, 31 October

JEE Main 2025 · ChemistryMultiple choiceTwo statementsMediumConceptual

JEE Main 2 April 2025, Shift 1, Chemistry Q68

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

Given below are two statements : Statement (I) : Vanillin ([structure: benzene ring with -CHO, -OH para to CHO and -OCH3 ortho to OH]) will react with NaOH and also with Tollen's reagent. Statement (II) : Vanillin ([structure: benzene ring with -CHO, -OH para to CHO and -OCH3 ortho to OH]) will undergo self aldol condensation very easily. In the light of the above statements, choose the most appropriate answer from the options given below :

The figure, in words

Vanillin structure (4-hydroxy-3-methoxybenzaldehyde): benzene ring with CHO, HO at the para position to CHO and OCH3 adjacent to the OH; drawn in both statements.
  1. (1)Both Statement I and Statement II are correct
  2. (2)Both Statement I and Statement II are incorrect
  3. (3)Statement I is correct but Statement II is incorrectOfficial answer
  4. (4)Statement I is incorrect but Statement II is correct

Official answer

Option 3

NTA final key.

Chapter
Aldehydes, Ketones and Carboxylic Acids
Topic
Aldol and Cannizzaro
Idea tested
Alpha-Hydrogen Acidity

Same idea in other shifts

Asked 2× in all
  1. 27 Jul 2022, Shift 2 · Q72The structure of A in the given reaction is : [figure: R-C(=O)-CH3 treated with NaOH and CH3CH2-Br (drawn as zigzag line with Br); product…MediumDiagram basedHas a figure

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 108 of the 174 JEE Main shifts held from 2017 to 2026.