Question

Question 18
Which of the following metals are obtained by electrolysis of their chlorides in molten state?
(i) $\text{Na}$
(ii) $\text{Ca}$
(iii) $\text{Fe}$
(iv) $\text{Cu}$

(a) (i) and (iv)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (i) and (ii)

Answer 1

Options (d) is correct.

Highly reactive metals such as $\text{K, Na, Ca}$ can be obtained by the electrolysis of their halides, usually chlorides, in molten state.

Whereas, metals like $\text{Zn, Fe, Pb, Cu}$ are reduced by reducing agents such as $\text{C, CO}$ and ${\text{H}}_2$.