Describe the extraction of zinc metal from its sulphide ore (zinc blende). Write equations of the reactions involved.
When Zinc Blende or Zinc Sulphide is strongly heated in air, it forms zinc oxide and sulphur di oxide. This process is called roasting.

2ZnS(s) + 3O2(g) -> 2ZnO(g) + 2SO2(g)


Then, zinc oxide is heatd with carbonto form zinc metal. This process is termed as reduction


Zn(s) + C(s) -> Zn(s) + CO(g)


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