Observe the circuit given in Fig. 14.8.

Boojho set up this circuit for purification of copper. What will be the nature of – (i) plate A (ii) plate B (iii) the solution.
Explain the process of purification.

Explanation

(i) plate A – Pure copper
(ii) plate B –Impure copper
(iii) the solution –Copper sulphate
Copper from impure copper plate is transferred to the pure copper plate by the process of electroplating.