Question

Suggest why the colour of the copper sulfate solution fades during the electrolysis.

Answer 1

Answer:

The blue colour of electrolyte is due to the presence of copper ions in it. ... However, no copper ions enters in the electrolyte from anode. Thus concentration of copper ions goes on decreasing. This result in fading of blue colour.

Answer 2

Explanation:

As the electrolysis happens, the blue colour of the solution fades. The copper ions from the solution migrate to the cathode. The cathode becomes coated with copper. Bubbles can be seen at the anode.