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Heating of ore in presence of air to rem...

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

A

Calcination

B

roasting

C

Smelting

D

none of these

Text Solution

Verified by Experts

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
`2ZnS+3O_(2)rarr2ZnO +2SO_(2)`
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