Chemistry-
General
Easy
Question
Heating of ore in presence of air to remove sulphur impurities is called
- (a) Calcination
- Roasting
- (c) Smelting
- None of these
The correct answer is: Roasting
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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