Which of the following occurs when a solution of CuSO4 is electrolysed using copper electrodes?
-
The cathode becomes coated with copper
- Both electrodes gain electrons
- The blue colour of the solution fades gradually
- The anode increases in mass
The correct answer is: A
Explanation
During the electrolysis of an aqueous solution of CuSO4 in the presence of Cu electrodes, copper metal will be deposited at cathode.