How does chlorine disinfect water?

Answer 1

Chlorine is used to disinfect water, both for drinking and other uses, because it is toxic to the bacteria and other microscopic creatures that live in it. (Of course, it is also toxic to humans, but the amount used to treat water is usually not harmful, although some experts recommend leaving water out to "breathe" for a few minutes before drinking it to allow any excess chlorine gas to escape.)

Answer 2

Chlorine works as a disinfectant by effectively killing bacteria, viruses, and other harmful microorganisms present in the water. When added to water, chlorine produces hypochlorous acid and hypochlorite ions, which in turn destroy the structure of the microorganisms and prevent their ability to multiply, thus helping to make the water safe for consumption.