JEE MAIN - Chemistry (2011 - No. 15)
Which of the following reagents may be used to distinguish between phenol and benzoic acid ?
Tollen’s reagent
Molisch reagent
Neutral FeCl3
Aqueous NaOH
คำอธิบาย
Phenol gives a violet colour with neutral ferric chloride solution whereas benzoic acid does not give this test.