In a blast furnace, iron(III) oxide is converted to iron and carbon monoxide is converted to carbon dioxide.
Fe$_2$O$_3$ + 3CO $\rightarrow$ 2Fe + 3CO$_2$
What happens to each of these reactants?
1 )
Both iron(III) oxide and carbon monoxide are oxidised.
2 )
Both iron(III) oxide and carbon monoxide are reduced.
3 )
Iron(III) oxide is oxidised and carbon monoxide is reduced.
Iron(III) oxide is reduced and carbon monoxide is oxidised.
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