General Principles and Processes of Isolation of Elements
In blast furnace, the iron oxide is reduced by:
- carbon monoxide
- lime stone
Correct Answer: Option(b)
Solution: is the main reducing agent in the furnace. Iron oxide is reduced to iron by .
In a blast furnace, a substance called coke (mainly C) reacts with oxygen, , to form carbon monoxide, . The carbon monoxide (a strong reducing agent) then reacts with iron oxide (in the form of hematite or magnetite) to form pig iron (mainly Fe) and carbon dioxide.
Option B is correct.