Q. On the extraction of iron, the slag produced is

A) CO
B) ${FeSiO}_{3}$
C) ${MgSiO}_{3}$
D) ${CaSiO}_{3}$
Explanation

(d)
In the iron silica is present as impurity, so for the removal of impurity of silica limestone is used.
${CaCO}_{3}\ \overset{\mathrm{\Delta}}{\rightarrow}CaO + {CO}_{2}\$
$CaO + {SiO}_{2}\ \longrightarrow {CaSiO}_{3}$
slag

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.