The more positive the value of `E^(θ)`, the greater is the trendency of the species to get reduced. Using the standard electrode potential of redox coples given below find out which of the following is the strongest oxidising agent.
`E^(θ)` values: `Fe^(3+)//Fe^(2+) = +0.77`
`I_(2)(s)//I^(-) = +0.54`,
`Cu^(2+)//Cu = +0.34, Ag^(+)//A = 0.80V`

Options

A. `Fe^(3+)`
B. `I_(2)(S)`
C. `Cu^(2+)`
D. `Ag^(+)`

Answer

D

Explanation

`Fe^(3+)//Fe^(2+) = +0.77`
`I_(2)(s)//T = +0.54`
`Cu^(2+)//Cu = +0.34, Ag^(+)//Ag = 0.80 V`
`Ag^(+)1` is the strongest oxidising agent as `E^(@)` of the redox couple `Ag^(+)//Ag` is the most positive, i.e. 0.80V therefore, `Ag^(+)` is the strongest oxidising agent.