Q.
Electrode potential for Mg electrode varies according to the equation EMg2+/Mg=EMg2+/MgO−20.059log[Mg2+]1
The graph of EMg2+/Mg versus log(Mg2+) is
The given reaction can be written as, E=Ecell0+20.059log[Mg2+]
On comparing this with standard equation of straight line y=mx+c
We can make out that the plot of E vs log and [Mg2+] will be linear with positive slope and intercept =E0