NEET Chemistry Nucleophilic Addition Assertion Reason Question
Assertion (A): Cyanohydrins are formed when aldehydes and ketones react with hydrogen cyanide (HCN).
Reason (R): The reaction is catalyzed by a base that generates a stronger nucleophile, the cyanide ion (CN-), which readily adds to carbonyl compounds.
Both (A) and (R) are true, and (R) is the correct explanation of (A).
Both (A) and (R) are true, but (R) is not the correct explanation of (A).
(A) is true, but (R) is false.
(A) is false.
Correct Answer
Detailed Explanation
The NCERT context states that aldehydes and ketones react with HCN to form cyanohydrins, and this reaction is catalyzed by a base that converts HCN to the stronger nucleophile CN-.
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