Question

locate the oxidation number for Cl2+2Br- 2Cl- + Br2

Answer 1

Cl₂ $\to$ 2Cl^- + 2e^-

Oxidation no. of Cl₂ = 0

Oxidation no. of 2Cl^- = -2

2Br^- + 2e^- $\to$ Br₂

Oxidation no. of 2Br^- = -2

Oxidation no. of Br₂ = 0