Chlorine water on standing loses its colour and forms : | Chemistry | SolveeIt

Question

Chlorine water on standing loses its colour and forms :

$HCl$ only

$HOCl$ and $HOCl_2$

$HCl$ and $HOCl$

$HCl$ and $HClO_2$

Answer

$HCl$ and $HOCl$

Explanation

Solution

Chlorine water on standing loses its colour and forms $HCl$ and $HOCl$ .

Cl _{2}+ H _{2} O \rightarrow HCl + HOCl

This is a disproportionation reaction.
The hypochlorous acid so formed gives nascent oxygen which is responsible for oxidizing and bleaching properties of chlorine.

Chemistry Question on p -Block Elements

Solution