____ is used for disinfection of drinking water options : a) copper sulphate b) alum c) bleaching powder d) sodium carbonate
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2
Answer:
Basically chlorine is used as a disinfectant but here we don't have directly chlorine, but bleaching powder do contains some amount of chlorine, so it is the correct answer.
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1
Answer:
Bleaching Powder is used for disinfection of drinking water.
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