How is zinc extracted from its ore zinc sulphide or zinc carbonate ?

1.	How is zinc extracted from its ore zinc sulphide or zinc carbonate ?
Answer» Solution :The crude ZINC sulphide ore is heated stronglyin excess of air. Zinc sulphide is converted into zinc oxide. This process is known as roasting . `underset("Zinc sulphide")(2ZnS_((s))) + 3O_(2(G)) to underset(" zinc oxide")( 2ZnO_((s))) + underset(" Sulphur dioxide ") (2SO_(2(g)))` The crude zinc carbonate ore is heated STRONGLY in limitedsupply of air. Zinc carbonte is converted into zincoxide. Thisprocess is known as calcination . ` underset(" Zinc carbonate") (ZnCO_(3(s))) to underset("Zinc oxide")(ZnO_(s)) + (" Sulphur dioxide")(CO_(2(g)))` The zinc oxide is reduced to zinc by usinga reducingagentsuchs carbon ` underset(" Zinc oxide " ) (ZnO_((s))) + underset( "Carbon") C_((s)) to Zn_((s)) + underset("Carbon monoxide")(CO_((g)))`

Discussion