Which statement is correct and explain

Question

The standard reduction potential for halogens are given below

Halogens Standard Reduction Potential at 25 oC

I2(s) + 2 e– → 2 I–(aq) +0.535

Br2(l) + 2 e– → 2 Br–(aq) +1.066

Cl2(g) + 2 e– → 2 Cl–(aq) +1.358

F2(g) + 2 e– → 2 F–(aq) +2.870

Which statement is correct and explain

1. Bromine will oxidize chloride ions
2. Chlorine will oxidize bromide ions

Answer 1

1) Bromine will oxidize chloride ions is INCORRECT

2) Chlorine will oxidize bromide ions is CORRECT. The reason is that chlorine has a greater reduction potential than bromine, so it is more easily reduced, i.e. easily gains electrons.

Cl₂ + 2Br^- ==> 2Cl^- + Br₂ ... Cl2 is reduced and Br- is oxidized