Magnesium oxide is used for the lining in steel making furn…

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 14, 2026

Magnesium oxide is used for the lining in steel making furnace because

MgO acts as an acidic flux to remove impurities of Si, P and S

MgO acts as a basic flux to remove impurities of Si, P and S

MgO acts as an oxidizing agent to remove impurities of oxides

MgO does not react with any type of impurities

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The correct answer is:

: MgO acts as a basic flux to remove impurities of Si, P and S through slag formation.

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