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Why is it not proper to leave bleaching powder open in moist air?

Answer and explanation

Correct answer: Its active chlorine-like effectiveness can decrease

The governing concept is the stability and storage of bleaching powder. Moisture and carbon dioxide from air can gradually decompose or deactivate its available chlorine, reducing its bleaching and disinfecting action. Consequently, bleaching powder should be kept in a dry, tightly closed container. Option A correctly states the practical effect; the other options describe impossible transformations and do not explain why dry storage is required.

Related tags

Bleaching PowderStorageMoist AirAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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