Question 3 (b) - Chemistry CBSE Class 12 Sample Paper for 2022 Boards [Term 2] - Solutions to CBSE Sample Paper - Chemistry Class 12

Last updated at August 8, 2026 by

Give reasons to support the answer: 

(B) 3 –Hydroxy pentan-2-one shows positive Tollen’s test.

Answer

Tollen’s test is used to determine the presence of an aldehyde , aromatic aldehyde and alpha-hydroxy ketones .

3–Hydroxy pentan-2-one is an alpha-hydroxy-ketone, and hence shows positive tollen’s test.

ALPHA-HYDROXY KETONES - Teachoo.jpg

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