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Question

Which of the following reagents may be used to distinguish between phenol and benzoic acid?

A
Molisch reagent
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B
Neutral FeCl3
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C
Aqueous NaOH
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D
Tollen’s reagent
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Solution

The correct option is B Neutral FeCl3
Phenol gives violet colour with neutral FeCl3 while benzoic acid gives buff colured ppt.

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