Question

During extraction of metals, electrolytic refining is used to obtain pure metals. Material which will be used as anode, for refining of silver metal by this process, is:

• A. zinc
• B. impure silver
• C. pure silver
• D. iron

Answer 1

The correct option is B impure silver

In the electrolytic refining process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. Thus, for refining silver, impure silver would be used as the anode.