Q. Identify the reaction that does not take place during the smelting process of copper extraction
A) $2FeS + 3O_{2}\ \longrightarrow 2FeO + 2{SO}_{2} \uparrow$
B) ${Cu}_{2}O + FeS\ \longrightarrow {Cu}_{2}S + FeO$
C) $2{Cu}_{2}S + 3O_{2}\ \ \longrightarrow 2{Cu}_{2}O + 2{SO}_{2} \uparrow$
D) $FeO + {SiO}_{2} \longrightarrow {FeSiO}_{3}$
Explanation
(b)
The reaction,
$2FeS + 3O_{2}\ \longrightarrow 2FeO + 2{SO}_{2}$↑
Occurs during roasting of pyrites ore. Roasting is the process of heating concentrated ore in the stream of air to convert it into oxide.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.