Question

In blast furnace iron oxide is reduced by

• A. Silica
• B. Carbon monoxide
• C. Carbon
• D. Lime stone

Answer 1

Answer: (B)

Carbon monoxide

Answer 2

In blast furnace, $\mathrm { Fe } _ { 2 } \mathrm { O } _ { 3 }$ is reduced to Fe by CO.

$\mathrm { Fe } _ { 2 } \mathrm { O } _ { 3 } + 3 \mathrm { CO } \rightarrow 2 \mathrm { Fe } + 3 \mathrm { CO } _ { 2 } \uparrow$