Write the steps to obtained the pure copper from ore

1.	Write the steps to obtained the pure copper from ore
Answer» (a) Roasting of sulphide ore:2Cu2S(s) + 3O2(s)\xa0→ 2Cu2O(s) + 2SO2(g)\xa0(b) Reduction of copper (I) oxide with copper (I) sulphide:2Cu2O + Cu2S → 6Cu(s) + SO2(g) This reaction is known as auto - reduction.(c) Reaction for electrolytic refining:At anode : Cu2+(aq) + 2e- → Cu(s)\xa0At cathode : Cu(s)\xa0→ Cu2+(aq)+ 2e-

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