Aqueous hypo solution on reaction with aqueous AgNO3 gives :... | CHEMISTRY - GROUP 16 ELEMENTS | SolveeIt | Solveeit

Today, August 18

Question

Aqueous hypo solution on reaction with aqueous AgNO3 gives :

A

Yellow precipitate changing to black

B

White precipitate changing to black

C

Orange precipitate to blue

D

No precipitate

Answer

White precipitate changing to black

Explanation

Solution

CaOCl2 acts as bleaching agent while Na2S2O3 acts as antichlor according to the following reaction.

CaOCl2 + H2O $\longrightarrow$ Ca(OH)2 + Cl2 .

Na2S2O3 + 4Cl2 + 5H2O $\longrightarrow$ 2NaHSO4 + 8HCl.