Electrode potential for `Mg` electrode varies according to the equation
`E_(Mg^(2+)|Mg)=E_(Mg^(2+)|Mg)^(ϴ) -(0.059)/2 "log" 1/([Mg^(2+)])`
The graph of `E_(Mg^(2+)|Mg) vs log [Mg^(2+)]` is

Options

A.
B.
C.
D.

Answer

B

Explanation

The given equation of y = mx + c. i.e. equation of straight line .
So graph of `E_(Mg^(2+)) | Mg `(y) Vs log `[Mg^(2+)]` (x) is a straight line with slope `(0.0592)/(2)` and intercept `E_(Mg^(2+) | Mg)^(@)`.