Basics

MCQ - 310-2496

Question:

Which one of the following reagents can be used to distinguish between the two compounds shown below?

Aqueous bromine
Ethanoic anhydride
Ethanoyl chloride
Ethanoic anhydride

Correct Answer: A

Explanation:

In phenol, the benzene ring is activated by the –OH group towards electrophilic substitution. It decolorizes Br₂and forms a white precipitate readily with aqueous Br₂ at room temperature but benzyl alcohol is unable to do so.

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