Chemistry 9701 · AS & A Level · Nitrogen and sulfur

Nitrogen and sulfur — practice question

Sulfur dioxide, $\text{SO}_2$, reacts with calcium hydroxide in aqueous solution. What is the principal product formed first?

  • A$\text{Ca(HSO}_4)_2$
  • B$\text{CaS}$
  • C$\text{CaSO}_3$
  • D$\text{CaSO}_4$

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