Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry

Atoms, molecules and stoichiometry — practice question

On the surface of the catalytic converter in a petrol-engined car, a reaction occurs between two gases. In this reaction, four reactant molecules form three product molecules. Which two reactant gases could be involved in this reaction?

  • Anitrogen and carbon dioxide
  • Bnitrogen monoxide and carbon dioxide
  • Cnitrogen monoxide and carbon monoxide
  • Dnitrogen dioxide and carbon monoxide

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