Q. Main function of roasting is
A) Oxidation
B) Reduction
C) Slag formation
D) To remove volatile substance
Explanation
(d)
Roasting is mainly employed to remove volatile substances
$S_{8} + 8O_{2} \rightarrow 8SO_{2} \uparrow$
$P_{4} + 5O_{2} \rightarrow P_{4}O_{10} \uparrow$
$4As + 3O_{2} \rightarrow 2As_{2}O_{3} \uparrow$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.