Question

$H_2{O}_2$ is used as:

• A. antiseptic
• B. bleaching agent
• C. As an antichlor
• D. All of the above.

Answer 1

The correct option is D All of the above.

Hydrogen peroxide $H_2{O}_2$ is a topical antiseptic used in wound cleaning which kills pathogens through oxidation burst and local oxygen production.

The oxidising ability of $H_2{O}_2$ allows it to react directly with double bonds in large organic molecules, forming organic peroxides.$H_2{O}_2$ is used in this way to bleach wood pulp to make white paper, and the melanin in hair.

It is also used as an antichlor

Theory :
Uses of hydrogen peroxide:
1.For bleaching delicate articles like wool, hair, feather, ivory, etc.
2.As an aerating agent in the production of sponge rubber.
3.For restoring the colour of old lead paintings.
4.As an antiseptic and germicide for washing wounds, teeth and ears, under the name of perhydrol.
5.In the manufacture of sodium perborate, sodium percarbonate.
6.As an antichlor.
7.As an oxidant for rocket fuel.
8.In the detection of Ti, V and Cr ions with which it forms peroxides of characteristics colors.
9.In the production of epoxides, propylene oxide and polyurethanes.
10.In the synthesis of hydroquinone, pharmaceuticals and food products.
11.For pollution control of domestic effluents.
12.For pollution control of industrial effluents containing $C{N}^{-}$ ions.