If electrolysis of aqueous solution of `CuSO_(4)` is carried out using graphite electrode, then what is the pH of solution of electrolytic cell ?

Options

A. pH=14.0
B. `pH=9.0`
C. `pH=7.0`
D. `pH lt 7.0`

Answer

D

Explanation

Due to electrolysis of `CuSO_(4)` solution, `H^(+)` is produced on anode by oxidation of water.
Solution of cell is acidic in nature, solution of `CuSO_(4)` is a salt solution of strong acid and weak base. And pH of acidic solution is always less than 7.0.
So `pH lt 7.0`