Question

Of the following, which cannot be obtained by electrolysis of the aqueous solution of their salts?

Solution

Correct option is

Mg and Al

Mg and Al cannot be obtained by the electrolysis of aqueous solution of their salts because instead of metal, H2 gas is liberated at cathode.

SIMILAR QUESTIONS

Q1

In blast furnace, the highest temperature in

Q2

Which metal is used as a reducing agent in smelting?

Q3

The electrolytic method of reduction is employed for the preparation of metals that

Q4

In alumino-thermite process, aluminium is used as

Q5

In the metallurgical extraction of zinc from ZnO, the reducing agent used is

Q6

In order to refine blister copper, it is melted in a furnace and is stirred with green logs of wood. The purpose is

Q7

The slag obtained during the extraction of copper from copper pyrites is composed of

Q8

Purest form of iron is

Q9

The cyanide process is used for obtaining

Q10

Mond’s process is used for the purification of