Home Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) Roasting & Calcination Heating of ore in presence of air to remove …
Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) Roasting & Calcination Single Correct MCQ
Published on: August 14, 2026

Heating of ore in presence of air to remove sulphur impurities is called

A
Calcination
B
Roasting
C
Smelting
D
None of these

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The correct answer is:
B

Roasting involves heating of the ore either alone or with some other material usually in presence of air below its fusion temperature. In roasting, definite chemical changes like oxidation, chlorination etc., take place

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