MCQ
A sulphide ore is converted into metal oxide by the process of :
- ACarbonation.
- ✓Roasting.
- CCalcination.
- DAnodising.
✓
Answer
Correct option: B.
Roasting.
Sulphide ores are transformed into oxides by the process of roasting. In this process, concentrated ore is heated in the presence of surplus air.
Example: Zinc blende $,\ce{ZnS},$ a sulphide ore of zinc, is roasted in the presence of air. On roasting, zinc sulphide gets transformed into zinc oxide.
Example: Zinc blende $,\ce{ZnS},$ a sulphide ore of zinc, is roasted in the presence of air. On roasting, zinc sulphide gets transformed into zinc oxide.
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