Chemical Test For Chlorine 1

Chemical  Test For Chlorine:

1) Bleaching action : Chlorine turns damp / moist blue litmus paper red and then bleaches. This is because of acid is produced.

At first….

            Cl₂                  +    H₂0            →                       HCl                    +                HOCl

Chlorine gas reacts with Water in moist litmus paper to form  Hydrochloric acid  and   unstable  Chloric (I) acid.

 Then  ……..

                  HOCl                         →                 HCl                        +                           [O]

Chloric (I) acid decompose to form          Hydrochloric acid         and              Oxygen Free Radical