Question

Ques. Which reagent will give similar results with both butanone and butanal?

A. acidified aqueous potassium dichromate(VI) B. an alkaline solution containing

complexed Cu2+ ions (Fehling’s solution)C. an aqueous solution containing [Ag(NH3)2]+

(Tollens’ reagent) D. 2,4-dinitrophenylhydrazine reagent​

Answer 1

Hi bruh!!!

Your answer to this question will be;-

D. 2,4-dinitrophenylhydrazine reagent.

Explanation:

You go on applying elimination method on options 1), 2) and 3) all these gives test to be distinguished between aldehyde and ketone.

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