What properties does hypochlorous acid have? Why is the reaction of chlorine with water used to disinfect water?

Hypochlorous acid HClO is a strong oxidizing agent.
When chlorine interacts with water, hypochlorous acid is formed.
H2O + Cl2 = HCl + HClO
HClO – decomposes to form atomic oxygen, which is responsible for bleaching and is used to disinfect water:
НСlO = HCI + [О]

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