Question

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

• A. $Fe_2O_3$
• B. $Cu_2O$
• C. $SO_2$
• D. $CO$

Answer 1

Answer: (B)

$Cu_2O$

Answer 2

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

$Cu _{2} S +\frac{3}{2} O _{2} \rightarrow Cu _{2} O + SO _{2} \uparrow$
$Cu _{2} S +2 Cu _{2} O \rightarrow 6 Cu ( I )+ SO _{2} \uparrow$