The correct observation in the following reaction is: Sucrose → Gly cosidic bond Cleavage (Hydrolysis) A + B →

Question

The correct observation in the following reaction is:

$\require{mhchem}\ce{Sucrose->[\text{Gly cosidic bond}][\text{Cleavage (Hydrolysis)}]A + B->[\text{Seliw anoff}][\text{Reagent}]?}$

(1) Formation of blue colour

(2) Formation of violet colour

(3) Formation of red colour

(4) Gives no colour

Answer 1

Ans. (3) Formation of red colour

Sol. Seliwanoff reagent $\to$ [Resorcinol + Conc. HCl]

Use of Seliwanoff reagent is to distinguish aldoses and ketoses. Ketoses show red colour with Seliwanoff Reagent.