Chemistry 9701 · AS & A Level · Equilibria

Equilibria — practice question

Chlorine is used extensively in water treatment plants. What reaction occurs when chlorine dissolves in water?

  • A$\text{Cl}_2 + \text{H}_2\text{O} \rightarrow \text{HCl} + \text{HClO}$
  • B$2\text{Cl}_2 + 2\text{H}_2\text{O} \rightarrow 3\text{HCl} + \text{HClO}_2$
  • C$3\text{Cl}_2 + 3\text{H}_2\text{O} \rightarrow 5\text{HCl} + \text{HClO}_3$
  • D$4\text{Cl}_2 + 4\text{H}_2\text{O} \rightarrow 7\text{HCl} + \text{HClO}_4$

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