Q. Identify the reaction that does not take place in a blast furnace.
A) ${CaCO}_{3}\ \longrightarrow CaO + {CO}_{2}$
B) $CaO + {SiO}_{2}\ \longrightarrow {CaSiO}_{3}$
C) $2{Fe}_{2}O_{3} + 3C \longrightarrow 4Fe + 3{CO}_{2}$
D) ${CO}_{2} + C \longrightarrow 2CO$
Explanation
(c)
The reaction takes place in blast furnace are
$3{Fe}_{2}O_{3} + CO\ \longrightarrow 2{Fe}_{3}O_{4} + {CO}_{2}$
$\ \ {CaCO}_{3}\ \longrightarrow CaO + {CO}_{2}$
$C + {CO}_{2}\ \longrightarrow 2CO$
$CaO + {SiO}_{2}\ \longrightarrow {CaSiO}_{3}$
$2C + O_{2}\ \longrightarrow 2CO$
Hence, the reaction $2{Fe}_{2}O_{3} + 3C \longrightarrow 4Fe + 3{CO}_{2}$ does not take place in blast furnace.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.