Iron is obtained from iron(III) oxide in the blast furnace. Three stages in this process are shown. 1 Carbon (coke) is fully oxidised. 2 Iron(III) oxide is reduced. 3 Carbon dioxide is reduced to carbon monoxide. What is the correct sequence of the stages in the extraction of iron?
- A$1 \rightarrow 2 \rightarrow 3$
- B$1 \rightarrow 3 \rightarrow 2$
- C$2 \rightarrow 1 \rightarrow 3$
- D$3 \rightarrow 1 \rightarrow 2$