Which one of the following conditions will increase the voltage of the cell represented by the equation ?

Options

A. Increase in the dimension of Cu electrode
B. Increase in the dimension of Ag electrode
C. Increase in the concentration of `Cu^(2+)` ion
D. Increase in the concentration of `Ag^(+)` ion

Answer

D

Explanation

Cell voltage will increase, either by increasing the concentration of `Cu^(2+)` ion or by decreasing the concentration of `Ag^(+)`.
`Q=([Cu^(2+)](/([Ag^(+)])`
Lesser is the value of Q, greater is the cell volatge.