Question
Question: Which one of the following is true in electrolytic refining?...
Which one of the following is true in electrolytic refining?
A
Impure metal is made cathode
B
Impure metal is made anode
C
Impure metal is made cathode and pure metal as anode
D
Both electrodes must be of pure metal
Answer
Impure metal is made anode
Explanation
Solution
Impure metal is made the anode and a solution containing a salt of the same metal is used as an electrolyte.