Chemistry 9701 · AS & A Level · Nitrogen and sulfur

Nitrogen and sulfur — practice question

Element X is a solid and is present in some fuels. Its oxide Y is produced in car engines. Y is acidic. In the atmosphere, Y may be oxidised further to Z. Which statements about Y and Z are correct?

  • A1, 2 and 3 are correct
  • B1 and 2 only are correct
  • C2 and 3 only are correct
  • D1 only is correct

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