The main active component of bleaching powder is formed due to which gas?
Answer and explanation
Correct answer: Chlorine
Bleaching powder is prepared by passing chlorine gas over dry slaked lime, calcium hydroxide, Ca(OH)2. In the school-level representation, the product is written as CaOCl2, commonly called bleaching powder, and its bleaching action is associated with chlorine. Therefore chlorine is the correct gas in option A. Hydrogen, nitrogen and helium do not produce bleaching powder in this preparation.
Frequently asked questions
What is the correct answer to this question?
Chlorine
Why is this the correct answer?
Bleaching powder is prepared by passing chlorine gas over dry slaked lime, calcium hydroxide, Ca(OH)2. In the school-level representation, the product is written as CaOCl2, commonly called bleaching powder, and its bleaching action is associated with chlorine. Therefore chlorine is the correct gas in option A. Hydrogen, nitrogen and helium do not produce bleaching powder in this preparation.
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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