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Bleaching powder is an important commercial compound prepared by passing chlorine gas through a specs Block Elements Chemistry Question

Question

Bleaching powder is an important commercial compound prepared by passing chlorine gas through a specific calcium compound. What is the reactant used, and what is the active bleaching component in the product mixture?

Answer: B

💡 Solution & Explanation

Bleaching powder is prepared by the action of $Cl_2$ gas on dry slaked lime ($Ca(OH)_2$). The reaction is an auto-redox process yielding a mixture, but the active bleaching and sterilizing agent is Calcium hypochlorite, $Ca(OCl)_2$.

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