Chemistry 0620 · IGCSE · Redox

Redox — practice question

Iron(III) oxide is reduced by carbon monoxide to form iron and carbon dioxide. What balanced equation represents this reaction?

  • A$\text{Fe}_2\text{O}_3 + 2\text{CO} \rightarrow 2\text{Fe} + 2\text{CO}_2$
  • B$\text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 2\text{Fe} + 3\text{CO}_2$
  • C$2\text{Fe}_2\text{O}_3 + 6\text{CO} \rightarrow 2\text{Fe} + 6\text{CO}_2$
  • D$2\text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 4\text{Fe} + 3\text{CO}_2$

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