The standard reduction potential of `Li^(+)//Li,Ba^(2+)//Ba,Na^(+)//Na` and `Mg^(2+)//Mg`. Are -3.05,-2.73,-2.71 and -2.37 volts respectively which one of the following is strongest oxidising agent?

Options

A. `Na^(+)`
B. `Li^(+)`
C. `Ba^(2+)`
D. `Mg^(2+)`

Answer

D

Explanation

A strong reducing agent is the one which has lowest red potential.
The strongest oxidising agent is one which has maximum tendency to gain electron, i.e., whose `E_("cell")^(@)` is maximum.