Question

1 a) What is bleaching powder ? b) How is bleaching powder prepared?

Answer 1

Explanation:

Bleaching powder is prepared by passing gas state of chlorine over dry slaked lime (`Ca(OH)_2`), this process will gives bleaching powder. Bleaching powder is prepared on a large scale by passing the chlorine gas through a solution that contains calcium hydroxide.

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Answer 2

Answer:

a powder containing calcium hypochlorite, used chiefly to remove colour from materials is called bleaching powder. Bleaching powder is prepared on a large scale basis by passing chlorine gas through a solution of calcium hydroxide (Ca(OH)2) which is commonly called as slaked lime.