Why is bleaching powder used to disinfect drinking water?
Answer and explanation
Correct answer: It provides chlorine that helps kill germs
Bleaching powder releases available chlorine when it contacts water. This chlorine forms disinfecting species such as hypochlorous acid, which damages essential cell components of many harmful bacteria and other microorganisms. Consequently, it helps make drinking water safer when used in a controlled amount. It is not added to sweeten water, force its pH to zero, or increase salt content.
Frequently asked questions
What is the correct answer to this question?
It provides chlorine that helps kill germs
Why is this the correct answer?
Bleaching powder releases available chlorine when it contacts water. This chlorine forms disinfecting species such as hypochlorous acid, which damages essential cell components of many harmful bacteria and other microorganisms. Consequently, it helps make drinking water safer when used in a controlled amount. It is not added to sweeten water, force its pH to zero, or increase salt content.
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.
