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Why should bleaching powder be stored in a dry closed container?

Answer and explanation

Correct answer: To reduce loss of available chlorine

Bleaching powder, commonly represented as calcium oxychloride, is effective because it supplies available chlorine. Moisture, carbon dioxide, and prolonged exposure to air can cause decomposition and reduce this available chlorine, lowering its bleaching and disinfecting power. A dry, tightly closed container limits these effects and preserves the substance. The other options describe no valid storage purpose, so option A is correct.

Related tags

Bleaching PowderAvailable ChlorineSaltsAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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