Chemistry 0620 · IGCSE · Air quality and climate

Air quality and climate — practice question

Car engines that run on gasoline as a fuel generate oxides of nitrogen. The oxides of nitrogen are taken out of the exhaust gases. Which statements about how oxides of nitrogen are formed or removed are correct?

  • A1 and 2
  • B1 and 3
  • C2 and 4
  • D3 and 4

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