Ncert Exercises & Solutions

In the extraction of copper from its sulphide ore, the metal is formed by the reduction of ${Cu}_{2} S$ with :
1. $FeS$
2. $CO$
3. $C u_{2} O$
4. ${SO}_{2}$

HINT: Reduction with

C u_{2} O

Explanation:

In the extraction of copper from its sulphide ore, the metal is formed by the reduction of

{Cu}_{2} O

with

{Cu}_{2} S

. This reaction completes with the process of autoreduction.

Chemical reaction occurring in this reaction is as follows :

{Cu}_{2} O + \frac{1}{2} {Cu}_{2} S \to 3 Cu + \frac{1}{2} {SO}_{2}

In this process, copper appears as blister copper.

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