Question

The reducing agent used in the blast furnace to reduce $F{e}_2{O}_3$ to Fe is:

• A. coke
• B. carbon
• C. lime stone
• D. carbon monoxide

Answer 1

The correct option is D carbon monoxide

Carbon monoxide is used as a reducing agent in a blast furnace to reduce $F{e}_2{O}_3$ to $Fe$.

Carbon monoxide is used for reducing $F{e}_2{O}_3$ to $Fe$ because according to Ellingham diagram, the free energy change for the formation of $CO$ is more negative than that of $F{e}_2{O}_3$.