Why is bleaching powder useful for disinfecting water?
Answer and explanation
Correct answer: It can provide available chlorine
Bleaching powder is useful for water disinfection because it releases available chlorine when added to water. This chlorine forms active chlorine-containing species that oxidise and destroy many disease-causing microorganisms. Its purpose is not to sweeten, freeze, or convert water into metal. Therefore, the scientifically correct explanation is option A.
Frequently asked questions
What is the correct answer to this question?
It can provide available chlorine
Why is this the correct answer?
Bleaching powder is useful for water disinfection because it releases available chlorine when added to water. This chlorine forms active chlorine-containing species that oxidise and destroy many disease-causing microorganisms. Its purpose is not to sweeten, freeze, or convert water into metal. Therefore, the scientifically correct explanation is option A.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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