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Impure metal is purified by electrolytic refining (i) Given below are steps for extraction of copper from its ore. Write the reaction involved. (a) Roasting of copper (I) sulphide (b) Reduction of copper (I) oxide with copper (I) sulphide (c) Ele...

Metals and Non-metals

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05/11/2020 7:27 pm

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romiroy12

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Impure metal is purified by electrolytic refining

(i) Given below are steps for extraction of copper from its ore. Write the reaction involved.

(a) Roasting of copper (I) sulphide

(b) Reduction of copper (I) oxide with copper (I) sulphide

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05/11/2020 7:31 pm

Anonymous

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(i) (a) 2Cu₂S(s) + 3O₂ → 2Cu₂O + 2SO₂

(b) 2Cu₂O + Cu₂S → 6Cu + SO₂(g)

(ii)

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