1.

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

Answer»

pH=14.0
`pH=9.0`
`pH=7.0`
`pH LT 7.0`

Solution :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`


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