Give the chemical reaction involved for extraction of zinc from zinc oxide.
Answers
Answered by
0
HLW MATE HERES UR ANS
ANSWER
During extraction of Zn from zinc blende (ZnS), following reactions occur:
(i) ZnS is roasted in excess air at 1200 K to form ZnO.
2ZnS+2O
2
Δ
2ZnO+2SO
2
(ii) ZnO is heated with crushed coke at 1673 K, where it is reduced to Zn.
ZnO+C
1676K
Zn+CO
(iii) Electrorefining is carried out for refining of impure zinc. Anode is impure zinc and cathode is pure zinc. Electrolyte is a mixture of zinc sulphate and dilute sulphuric acid (small amount). When current is passed, zinc is deposited on cathode and is collected.
At anode : Zn→Zn
2+
+2e
−
At cathode: Zn
2+
+2e
−
→Zn
Answered by
0
Explanation:
ZnO + C → Zn + CO.
________ hope it helps ✌️_______
Similar questions