Magnesium is extracted by electrolysing fused magnesium chl…

Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) General Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

Magnesium is extracted by electrolysing fused magnesium chloride containing NaCl&CaCl2 using :

A nickel cathode and a graphite anode.

The iron container as anode and a nickel cathode.

The iron container as cathode and a graphite rod as anode.

The nickel container as cathode and iron anode.

Text Solution

Verified by Experts

The correct answer is:

MgCl2 Mg2+ + 2Cl–

At cathode : Mg2+ + 2e– Mg(99% pure) ;

At anode : 2Cl– Cl2 + 2e–

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