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  4. In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with :

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Q. In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with :

JEE MainJEE Main 2018General Principles and Processes of Isolation of Elements

Solution:

In the extraction of copper from its sulphide ore, copper is obtained finally by oxidation of cuprous sulphide with $Cu _{2} O$.

$Cu _{2} S +\frac{3}{2} O _{2} \rightarrow Cu _{2} O + SO _{2} \uparrow$

$Cu _{2} S +2 Cu _{2} O \rightarrow 6 Cu ( I )+ SO _{2} \uparrow$