NTA Abhyas JEE Main2020ChemistryAldehydes and KetonesPractice

A and B respectively are

Correct answer

Step-by-step solution

N a B H 4 is a weak reducing reagent. So it reduces only carbonyl group while reduction of -COOH group does not happen and it remains unaffected. L i A l H 4 is strong reducing reagent; so it can reduce both carbonyl and carboxylic groups.

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