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Question

Which of the following is true for electrolytic refining?
  1. Both can be possible A and B
  2. Pure metal is used at cathode and impure metal at anode
  3. None of these
  4. Pure metal is used at anode and impure metal at cathode

A
None of these
B
Pure metal is used at anode and impure metal at cathode
C
Pure metal is used at cathode and impure metal at anode
D
Both can be possible A and B
Solution
Verified by Toppr

Impure metal will release electron hence form anode electrode and pure metal will absorb electron hence it will be posses as cathode electrode.

Pure metal is used as the cathode and impure metal as anode.

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