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Question : Name the gas used in preparation of bleaching powder

Option 1: oxygen

Option 2: hydrogen

Option 3: nirtogen

Option 4: chlorine


Team Careers360 4th Jan, 2024
Answer (1)
Team Careers360 20th Jan, 2024

Correct Answer: chlorine


Solution : The correct option is chlorine.

Chlorine gas (Cl2) is utilised in the production of bleaching powder. The active component of bleaching powder is calcium hypochlorite, which is produced by bubbling chlorine gas through a slaked lime (calcium hydroxide) solution.
Ca(OH)2 + Cl2 → Ca(ClO)2 + H2O Here, calcium hydroxide (Ca(OH)2) reacts with chlorine gas (Cl2) to produce calcium hypochlorite (Ca(ClO)2) and water (H2O).

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