Chemistry 9701 · AS & A Level · Nitrogen and sulfur

Nitrogen and sulfur — practice question

Nitrogen dioxide undergoes reaction with water. $2\text{NO}_2 + \text{H}_2\text{O} \rightarrow \text{HNO}_2 + \text{HNO}_3$ Which statement about this reaction is correct?

  • ABoth products are formed because oxygen atoms gain electrons.
  • BNitrogen atoms undergo disproportionation.
  • CThe oxidation number of hydrogen is increased.
  • DWater acts as an oxidising agent.

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