JEE Main Chemistry question

The reagent with which both acetaldehyde and acetophenone react easily are

(A)Fehling's solution
(B)Schiff's reagent
(C)Tollen's reagent
(D)2,4-dinitrophenylhydrazineCorrect

Answer: (D)

Solution

2,4-DNP reacts with the carbonyl group of both aldehydes and ketones (aliphatic and aromatic alike) to give orange/yellow hydrazones; Fehling's and Tollens' reagents are

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Question ID VK-149136