WBCS.LIVE practice question

What is the chemical name of Bleaching Powder?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Calcium Sulphate
  2. Calcium Oxychloride
  3. Sodium Carbonate
  4. Calcium Hydroxide

Correct answer and explanation

Correct answer: Calcium Oxychloride

Explanation: ✅ Correct Answer: B) Calcium Oxychloride 📚 Explanation: Bleaching powder (CaOCl₂) is produced by the action of chlorine gas on dry slaked lime. It is widely used as a disinfectant for drinking water and as a bleaching agent in the textile and paper industries. Its strong smell is due to the slow release of chlorine when it reacts with moisture or carbon dioxide in the air.