The uses of bleaching powder are:

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It is used as bleaching cotton

It is used as an oxidising agent in chemical industries

It can be used for disinfecting water

All of the above

answer is D.

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Detailed Solution

concept - The bleaching agent is the substance used to remove the colour from fabric or fibre or the stains. The basic function of a bleaching agent is to decolourize other substances.
It is an oxidation process.
The chemical name of bleaching powder is Calcium oxychloride and the chemical formula of bleaching powder is

CaO {Cl}_{2}

.
The uses of bleaching powder are:
It is used to clean dirty clothes, like cotton clothes, etc.
It is used as an oxidising agent in the chemical industry because of the liberation of nascent oxygen.
It is used for disinfecting the water to make it potable.
Hence, the correct answer is 4.

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