Chemical Test For Bromine 1 :

The chemical test of Bromine is similar to Chlorine but differs by rate.

1) Bleaching action : Bromine also turns damp / moist blue litmus paper red and then bleaches 
but much slower than that of Chlorine gas .  This is because of acid is produced.

At first….

                                      Br₂                          +    H₂0                    →            HBr                    +                    HOBr

Bromine gas also reacts with Water in moist litmus paper to form  Hydrobromic acid  and    unstable  bromic (I) acid.

 Then  ……..

                  HOBr                           →                         HCl                        +                           [O]

Again, Bromic (I) acid decompose to form      Hydrobromic acid             and   Oxygen Free Radical