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In a set of reactions, ethylbenzene yielded a product D.

1. (a) CH₂–CH–COOC₂H₅ | Br
2. (b) CH₂–COOC₂H₅ | Br
3. (c) CH₃–COOH
4. (d) CH₃CH₂COOH

Correct answer: (c) CH₃–COOH

Solution

Ethylbenzene undergoes side-chain oxidation to form benzoic acid (C₆H₅COOH), which upon further reactions can yield acetic acid (CH₃–COOH).

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