1.

Define roasting with examples.

Answer»

Roasting:- It is the process of converting an ore into its metallic oxide by heating strongly at temperature insufficient to melt in excess of air.

4FeS2 + 11O2 → 2Fe2O3 + 8SO2

2Cu2S + 3O2 → 2Cu2O + 2SO2

2ZnS + 3O2 → 2ZnO + 2SO2

S + O2 → SO2 ↑



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