Question

Standard reduction potentials of the half reactions are given below :

F_2(g) + 2e^- → 2F^-_(aq); E° = + 2.85 V

The strongest oxidising and reducing agents respectively are

(a) F₂ and I^-

(b) Br₂ and Cl^-

(c) Cl₂ and Br^-

(d) Cl₂ and I₂

Answer 1

Correct option (a) F₂ and I^-

Explanation :

More negative the value of reduction potential, stronger will be the reducing agent thus I^- is strongest reducing agent. More positive value of reduction potential shows good oxidising properties thus strongest oxidising agent is F₂.