Question

Assertion (A): The chemical name of bleaching powder is calcium oxychloride.
Reason (R): Bleaching powder is used as an oxidising agent in chemical industries.

Answer 1

The chemical name of bleaching powder is calcium oxychloride. It is represented as ${\text{CaOCl}}_2$. Bleaching powder is used as an oxidising agent in chemical industries. Oxidising nature of bleaching powder is due to chlorine present in it.
Bleaching powder undergoes decomposition in the presence of carbon dioxide gas to release chlorine along with calcium carbonate. The reaction involved is given below:

${\text{CaOCl}}_2\text{(s)}+{\text{CO}}_2\text{(g)}\to {\text{CaCO}}_3\text{(s)}+{\text{Cl}}_2\text{(g )}$

The released chlorine gas provides the oxidising property to the bleaching powder.

Hence, both A and R are true and R is not the correct explanation of A.