Question

leaching powder slowly loses its activity when it stands in air. this is due to

Answer 1

Here is your answer.
Bleaching powder is chemically, calcium oxychloride (CaOCl2). Bleaching powder can be manufactured by using two types of manufacturing plants : Backmann’s plant and Hasenclever plant. It is manufactured by passing chlorine gas over slaked lime.

Bleaching powder is a yellowish white powder with a strong smell of chlorine. When exposed to air, bleaching powder gives a smell of chlorine. This is because bleaching powder reacts with carbon dioxide from the atmosphere to produce calcium carbonate and chlorine gas.

CaOCl2 + CO2 → CaCO3 + Cl2

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