Based on the refining of copper two chemical equations are given below.
`a) Cu^2+ 2e^- rarr Cu`
`b) Cu rarr Cu^2+ 2e^-`
Write the chemical reaction taking place at anode?
ii) in which electrode pure copper is precipitated?

Explanation

i) b) `Cu rarr Cu^2+ + 2e^-
ii) Cathode