The standard electrode potentials `(E^(@)) " for " Ocl^(-)//Cl^(-) " and " Cl^(-)//(1)/(2) Cl_(2)` respectively are 0.94 V and `-1.36 V`. The `E^(@)` value for `Ocl^(-)// (1)/(2) Cl^(2)` will be:

Options

A. `-0.42V`
B. `-2.20V`
C. `0.52V`
D. `1.04V`

Answer

C

Explanation

`OC l^(-)toCl^(-),E^(o)=0.94V`
`Cl^(-)to(1)/(2)Cl_(2)+e^(-)E^(o)=-1.36V`
adding the two equations, we get
`OC l^(-)to(1)/(2)Cl_(2),E^(o)=0.94-1.36=-0.42V`.