Question

Which one of the following chemical agent is not being used for dry–cleaning of clothes?

• A. $H_2{O}_2$
• B. $CC{l}_4$
• C. Liquid $C{O}_2$
• D. $C{l}_{2}C=CC{l}_2$

Answer 1

The correct option is A $H_2{O}_2$

Liquid $C{O}_2,CC{l}_4$ and $C{l}_{2}C=CC{l}_2$ are used as dry cleaning agents for clothes.
$H_2{O}_2$ is used as bleaching agent in laundry.
This is due to the release of nascent oxygen.
The nascent oxygen combines with colouring matter which in turn gets oxidized. Thus, the bleaching action of hydrogen peroxide is due to the oxidation of colouring matter by nascent oxygen. It is used for the bleaching of silk, ivory, wool or feather.
Hence, option (a) is correct.