The bleaching property of chlorine water is due to:
A.Formation of nascent oxygen
B.Formation of nascent chlorine
C.Formation of${O_3}$
D.Reducing property of$C{l_2}$

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Chlorine water has both oxidizing and bleaching properties. This helps in the bleaching action.

Complete step by step answer:
When we talk about chlorine water, we must understand that there is no compound that is called chlorine water. Instead it is basically a process. It is a process which involves the hydration of chlorine, or to put it in simpler terms, it is a reaction when chlorine is added to water. This particular reaction is of interest because it results in the formation of products that act as bleaching agents, and hence help in the cleaning action.
To understand more about these products, let us look at the chemical reaction, which can be represented as follows:

\[C{l_2} + {H_2}O \to HCl + HClO\]

The products formed are HCl that is hydrochloric acid, and HClO that is Hypochlorous Acid.
Now this reaction does not stop here and there is further dissociation in hypochlorous acid. The chemical reaction for the same is as follows:

\[HCLO \to HCl + (O)\]

Where (O) is known as nascent oxygen and it is the main reason for the bleaching property of chlorine water.

Hence, Option A is the correct option.

HClO or Hypochlorous acid is a relatively unstable acid. Hence, dissociates into (O) because of its instability.