Question

In electrolytic refining, the impure metal acts as anode.

• A. True
• B. False

Answer 1

The correct option is A

True

In electrolytic refining of metals, the impure metal and a strip of pure metal is used. The crude metal is made to act as an anode and pure metal is made to act as a cathode. They are dipped in an electrolytic bath which contains the soluble salt of the same metal. As electricity is passed through the solution, the less basic metal moves towards the anode mud leaving the more basic metal in the solution. Copper is purified using this method.