In which of the following bleaching powder is not used?

For bleaching wood pulp

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For water sterilisation

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As an oxidising agent

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For sugar decolourisation

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Solution

The correct option is D For sugar decolourisation
Bleaching powder is used in the following ways:-
1. For bleaching wood pulp in paper factories and for bleaching washed clothes in laundry.
2. As an oxidising agent in many chemical industries.
3. For disinfecting drinking water to make it free of germs.
It is not, however, used for sugar decolourisation.

Hence, correct answer is option D.

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