Inside the blast furnace, iron is produced when iron(III) oxide undergoes a redox reaction with carbon monoxide. $\text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 2\text{Fe} + 3\text{CO}_2$. Which substance acts as the oxidising agent, and which substance acts as the reducing agent?
- Aoxidising agent: CO; reducing agent: $\text{Fe}_2\text{O}_3$
- Boxidising agent: $\text{CO}_2$; reducing agent: Fe
- Coxidising agent: Fe; reducing agent: $\text{CO}_2$
- Doxidising agent: $\text{Fe}_2\text{O}_3$; reducing agent: CO