Aqueous solution of carbohydrate with 2 drop of alcholic solution of `alpha`-naphthol
Channel: Doubtnut
Date: 26/01/2020

Aqueous solution of carbohydrate with 2 drop of alcholic solution of `alpha`-naphthol and `H_(2) SO_(4)` gives a ring at the junction. The colour of the ring is: