Why is bleaching powder used for disinfecting drinking water?

Correct option is D

The correct answer is option (d) It releases chlorine, which kills germs.

• Bleaching powder is used to disinfect drinking water because it releases chlorine, which is a powerful disinfectant.
• Chlorine kills harmful microorganisms such as bacteria, viruses, and fungi present in the water, making it safe for consumption.
• Its chemical composition and ease of use make it effective for water purification.

Bleaching powder = Calcium Hypochlorite = CaO(Cl)$$_2$$.​

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