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Q. |
Name the gas used in preparation of bleaching powder – |
A. | Oxygen |
B. | Hydrogen |
C. | Nitrogen |
D. | Chlorine |
Answer» D. Chlorine | |
Explanation: Bleaching powder in manufactured by passing chlorine gas over dry slaked lime. Bleaching powder is also called calcium chlorohypochlorite be-cause it is considered as a mixed salt of hydrochloric acid and hypochlorous acid. |
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