Class 11 NEET Chemistry Redox Reactions Questions

H2O+

0

Br2

→HO

+1

Br

+

−1

HBr

In the above reaction the oxidation number of Br2 increases from zero ( in Br2) to +1 (in HOBr) and decreases from zero (in Br2 ) to -1 (in HBr ).
Thus, Br2 is oxidised as well as reduced and hence it is a redox reaction.