Draw a neat and well-labelled diagram for electrolytic refining of copper.

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Solution

Following reactions take place at anode and cathode:

Anode: $C u \to C u^{+ 2} + 2 e^{-}$

Cathode: $C u^{+ 2} + 2 e^{-} \to C u$

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(a) Roasting of copper (I) sulphide.
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(c) Electrolytic refining.

(ii) Draw a neat and well-labelled diagram for electrolytic refining of copper.

Question 62
(i) Given below are the 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) Electrolytic refining.

(ii) Draw a neat and well-labelled diagram for electrolytic refining of copper.

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Draw a neat and well-labelled diagram for electrolytic refining of copper.

Following reactions take place at anode and cathode:Anode: Cu→Cu+2+2e−Cathode: Cu+2+2e−→Cu

Following reactions take place at anode and cathode:

Anode: $C u \to C u^{+ 2} + 2 e^{-}$

Cathode: $C u^{+ 2} + 2 e^{-} \to C u$