Question

# Yellow colour of Chlorine water fades because of?A. Form HCl and HOClB. Chlorine gas escapesC. $Cl{{O}_{2}}+{{H}_{2}}$D. $C{{l}_{2}}O$

Hint: Chlorine is basically a chemical element which is yellowish in colour. It is a reactive element and is also a strong oxidising agent. When chlorine is added to water, it dissolves to form a solution called chlorine water.

- First of all let’s see the reaction that takes place when we add chlorine in water:
$C{{l}_{2}}+{{H}_{2}}O\to HCl+HOCl$
Here we can see that the products formed are HCl and HOCl. Due to which yellow colour of Chlorine water fades because of
- HOCl is a compound which is formed, will further dissociate into HCl and [O].
- [O] is the nascent oxygen, which is responsible for the bleaching action.
- Hence, we can conclude that the correct option is (A), that is the yellow colour of Chlorine water fades because of the formation of HCl and HOCl.