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Why is it proper to protect bleaching powder from moisture and open air?

Answer and explanation

Correct answer: Its available chlorine may decrease

The governing concept is the stability of bleaching powder and its available chlorine. Bleaching powder is used because it can release chlorine for bleaching and disinfection. Exposure to moisture and air promotes slow decomposition and loss of available chlorine, reducing its effectiveness. Thus option A is correct, and it should be stored in a dry, tightly closed container. The other options describe impossible or chemically unrelated changes, such as formation of gold or gypsum.

Related tags

Bleaching PowderStorageChlorineAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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