Question

electrorefining of copper with chemical eq and duagram

Answer 1

Electrorefining is used to purify a no. of metals like copper, nickel, cobalt, lead, tin.
will examine the behaviour of an electrolytic cell in which both electrodes are made of pure copper.
The anode copper is oxidised as follows:
Cu → Cu2+ + 2e−
At the cathode, the following reaction takes place:
Cu2+ + 2e− → Cu