WBCS.LIVE practice question

Which gas is commonly used for the disinfection of water in swimming pools?

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

Answer options

  1. Nitrogen
  2. Chlorine
  3. Oxygen
  4. Helium

Correct answer and explanation

Correct answer: Chlorine

Explanation: āœ… Correct Answer: B) Chlorine šŸ“š Explanation: Chlorine is a powerful oxidizing agent that effectively kills bacteria, viruses, and algae, making water safe for swimming and drinking. When added to water, it forms hypochlorous acid, which penetrates the cell walls of microorganisms and destroys them. However, the concentration must be carefully monitored to avoid irritating the skin and eyes of swimmers.