Which statement about bleaching powder is most correct?
Answer and explanation
Correct answer: It is formed by action of chlorine on dry slaked lime
Bleaching powder is commonly represented as calcium oxychloride, CaOCl₂, and is prepared by passing chlorine over dry slaked lime, Ca(OH)₂. The process can be summarised as 2Cl₂ + 2Ca(OH)₂ → Ca(OCl)₂ + CaCl₂ + 2H₂O, with the product mixture called bleaching powder. The other options describe unrelated substances or processes. Therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
It is formed by action of chlorine on dry slaked lime
Why is this the correct answer?
Bleaching powder is commonly represented as calcium oxychloride, CaOCl₂, and is prepared by passing chlorine over dry slaked lime, Ca(OH)₂. The process can be summarised as 2Cl₂ + 2Ca(OH)₂ → Ca(OCl)₂ + CaCl₂ + 2H₂O, with the product mixture called bleaching powder. The other options describe unrelated substances or processes. Therefore option A is correct.
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.
