Question

Why metals are always formed at cathode during electrolytic refining?

Answer 1

Metals have positive charge.cathode are negatively charged.We know that positive and negative poles attract each other.So the pure positive metal is found in cathode after electrolysis process.

Answer 2

metals are positively charged therefore when the current passes the +ve ion is attracted towards the negative electrode (cathode) where as the -ve ion is attracted towards the positive electrode (anode) ...