Question

If a metal M is purified using electro-refining technique, then anode and cathode are made as respectively
(1) Impure metal M and impure metal M
(2) Impure metal M and pure metal M
(3) Pure metal M and pure metal M
(4) Pure metal M and impure metal M​

Answer 1

Explanation:

1. 4 is the correct answer.
2. because I am not attract the positive 1 and cathode attracts the negative one
3. please mark my answer brainlist

Answer 2

Answer:

In electrolytic Refining,

Anode = Impure metal M

Cathode = Pure Metal M

Hence,

Option 2) is correct.