Chemistry 9701 · AS & A Level · Nitrogen and sulfur

Nitrogen and sulfur — practice question

Which of the following statements about nitrogen oxides is correct?

  • ADuring lightning storms, atmospheric oxygen and nitrogen combine to form oxides of nitrogen.
  • BIn a catalytic converter, nitrogen monoxide is removed by reaction with carbon dioxide.
  • CIn car engines, the restricted supply of oxygen eliminates the possibility of the formation of oxides of nitrogen.
  • DIn the atmosphere, nitrogen monoxide reacts with sulfur dioxide to produce sulfur trioxide.

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