Which of the following reaction(s) is/are correctly matched their major product?

Question

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* (A) Incorrect: Semicarbazide attacks via the more nucleophilic $- N H - N H_{2}$ terminal, but the product shows attack from the less nucleophilic amide end.

* (B) Correct: Acetaldehyde undergoes standard nucleophilic addition with $H CN$ ( $N a CN + H^{+}$ ) to form a stable cyanohydrin.

* (C) Incorrect: $PCC$ is a mild oxidizing agent that converts primary alcohols into aldehydes ( $P h C H O$ ), not carboxylic acids.

* (D) Correct: Aldehydes undergo Baeyer-Villiger oxidation with peracids ( $m - CPB A$ ) to form carboxylic acids ( $C H_{3} COO H$ ).

Chemistry - Carbonyl compounds Question with Solution | TestHub

Options:(select one or more)

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