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GK QUESTION#3418

Bleaching powder is commonly used for which of the following purposes?

  1. AUsed in soda-acid fire extinguishers
  2. BActs as an oxidising agent in several chemical industriesCorrect answer
  3. CUsed to remove permanent hardness of water
  4. DUsed in the preparation of sodium compounds like borax
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Answer

B. Acts as an oxidising agent in several chemical industries

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Explanation

Bleaching powder is used as an oxidising agent, as well as for bleaching and disinfection. Its available chlorine accounts for these uses. The other choices describe familiar uses of other sodium compounds rather than this industrial oxidising role.

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