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Question

Bleaching properties of bleaching powder are due it its:

A
Oxidizing properties
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B
Reducing properties
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C
Basic properties
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D
Disinfecting properties
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Solution

The correct option is B Oxidizing properties

Chlorine bleaches by the process of oxidation. It needs moisture for its bleaching action.

Chlorine reacts with water to form hydrochloric and hypochlorous acids.

Cl2+H2OHCl+HClO

Hypochlorous acid is unstable, and it easily dissociates to form nascent oxygen.

HClOHCl+[O]

Nascent oxygen is a more powerful oxidising agent. Its formation is responsible for the bleaching nature of chlorine in the presence of moisture.

Hence option A is correct answer.


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