Question

Using the standard electrode potential, find out the pair between which redox reaction is not feasible. `E^(@)` values : `Fe^(3+)//Fe^(2+)=+0.77, I_(2)//I^(-)=+0.54 V`
`Cu^(2+)//Cu= + 0.34 V, Ag^(+)//Ag= +0.80 V`
A. `Fe^(3+)` and `I^(-)`
B. `Ag^(+)` and `Cu`
C. `Fe^(3+)` and `Cu`
D. `Ag^(+)` and `Fe^(3+)`

Answer 1

Correct Answer - D
`Ag^(+)` and `Fe^(3+)` are is not feasible because they have almost same standard electrode potential.