Which of the following reagents may be used to distinguish between phenol and benzoic acid ?
Which of the following reagents may be used to distinguish between phenol and benzoic acid ?
(a) Aqueous NaOH
(b) Tollen’s reagent
(c) Molisch reagent
(d) Neutral FeCl3
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(d) : Phenol gives violet colouration with neutral ferric chloride solution. Benzoic acid gives buff coloured (pale dull yellow) precipitate with neutral ferric chloride solution.
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