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Question
When chlorine is dissolved in water, it reacts to form hypochlorous acid and hypochlorite ions. At pH < 5, chlorine exists in water as
A.
Elemental or molecular chlorine
B.
Remains in the form of hypochlorous acid
C.
Remains in the form of hypochlorite ions
D.
Remains in the form of both hypochlorous acid and hypochlorite ions
Answer ( Option A)

Elemental or molecular chlorine

Solution

At pH < 5, chlorine does not react with water and remains in elemental or molecular chlorine form.

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