Question

The standard reduction potential of Li⁺/Li, Ba²⁺/Ba, Na⁺/Na and Mg²⁺/Mg are – 3.05, – 2.73, –2.71 and – 2.37 volts respectively. Which one of the following is strongest oxidising agent?
(a) Li⁺
(b) Na⁺
(c) Mg²⁺
(d) Ba²⁺

Answer 1

(c) A cation having maximum value of standard reduction potential is the strongest oxidising agent. Hence, Mg2+ is the strongest oxidising agent.