Write chemical reactions taking place in the extraction of zinc from zinc blende.
During extraction of Zn from zinc blende (ZnS), following reactions occur: (i) ZnS is roasted in extra air at 1200 K to shape ZnO. 2ZnS 2O2Δ2ZnO 2SO2 (ii) ZnO is heated with overwhelmed coke at 1673 K, wherein it's far decreased to Zn. ZnO C1676KZn CO (iii) Electrorefining is executed for refining of impure zinc. Anode is impure zinc and cathode is natural zinc. Electrolyte is a aggregate of zinc sulphate and dilute sulphuric acid (small amount). When cutting-edge is passed, zinc is deposited on cathode and is collected. At anode : Zn→Zn2 2e− At cathode: Zn2 2e−→Zn
