Discussion Forum

 Copper is purified by electrolytic refining of blister copper. The correct statement(s0 about this process is/are 

Answer:

Explanation:

(a) is wrong statement, Impure copper is set as anode where copper is oxidised to Cu²⁺ and goes into electrolyte solutions.

(b) CuSO₄ is used as an electrolyte in the purification process

(c)  Pure copper is deposited at cathode as :

    $Cu^{2+}+2\overline{e}\rightarrow Cu$   :  (At  cathode )

 (d) Less active metals like Ag, Au etc. settle down as anode mud.