Mark the correct statements.
(i) Mercury can be refined by the process of distillation.
(ii) In poling, the molten impure metal is stirred with green poles of wood.
(iii) In electrolytic refining of metals , impure metal is made as cathode and a thin strip of pure metal is made as anode.

Options

A. (i) and (ii)
B. (i) and (iii)
C. (ii) and (iii)
D. (i), (ii) and (iii)

Answer

A

Explanation

In electrolytic refining of metals, impure metal is made as anode and a thin strip of pure metal is made as cathode.