Bleaching powder is made from which of the following chemicals?

Options :
  1. Sulphur dioxide and Gypsum
  2. Chlorine and Charcoal
  3. Soda ash and Lime
  4. Lime and Chlorine
Answer and Explanation :-

Answer: Option 4


Bleaching Powder is the commercial name of Calcium Chlorohypochloride. It is considered a mixed salt of hydrochloric acid and hypochlorous acid. Its chemical formula is CaOCl2.H2O. It is manufactured by the action of Chlorine (Cl) on dry slaked lime or Calcium hydroxide [Ca(OH)2]. It is widely used as a Cleaning Agent, for Sterilization and other purposes.

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