Statement-1 : Aniline on reaction with NaNO 2 / HCl at 0ºC …

Chemistry Chemistry In Every Day Life ( Not In Syllabus ) JEE ADVANCED Previous Year Question Single Correct MCQ

Published on: August 13, 2026

Statement-1 : Aniline on reaction with NaNO 2 / HCl at 0ºC followed by coupling with β -naphthol gives a dark blue precipitate.

Statement- 2 : The colour of the compound formed in the reaction of aniline with NaNO 2 /HCl at 0ºC followed by coupling with β -naphthol is due to the extended conjugation.

Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1

Statement-1 is True, Statement-2 is False

Statement-1 is False, Statement-2 is True

Text Solution

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The correct answer is:

The colour of Azo-dyes,is due to extended conjugation.

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