Given below is the steps for extraction of Copper from its ore. Write the reactions involved.
(a) Roasting Copper (I) Sulphide.
(b) Reduction of Copper (I) oxide with Copper (I) sulphide

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Solution

a) Roasting of Copper (I) Sulphide ore:
$2 C u S_{(}$ $_{S}$ $_{)}$ + $3 O_{2}$ $_{(}$ $_{S}$ $_{)}$ $\to$ $2 C u O_{(}$ $_{S}$ $_{)}$ + $2 S O_{2}$ $_{(}$ $_{g}$ $_{)}$
b) Reduction of Copper (I) oxide with Copper (I) sulphide:
$2 C u_{2}$ O + $C u S$ $\to$ $6 C u_{(}$ $_{S}$ $_{)}$ + $S O_{2}$ $_{(}$ $_{g}$ $_{)}$
This reaction is known as auto- reduction.

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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.

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.

Given below are the steps for extraction of copper from its ore. The balance reaction involved in -

Roasting of copper(I) sulphide is:

Given below are the steps for extraction of copper from its ore. The balance reaction involved in reduction of copper(I) oxide with copper(I) sulphide is given in the reaction below.