The most suitable method for disinfecting swimming pool water is

Asked in Civil Engg GA 24 2023 CO 1505 2024 · Topic: Sulphur, Nitrogen, Halogen, Inert Gases (Halogens (F, Cl, Br, I): General characteristics, trends in physical and chemical properties, and oxidation states)

1. ultraviolet ray treatment
2. lime treatment
3. using potassium permanganate
4. chlorination

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