Chemistry 0620 · IGCSE · Redox

Redox — practice question

Chlorine gas is passed through aqueous potassium iodide. What is the ionic equation for the reaction that occurs?

  • A$\text{Cl} + \text{I}^- \rightarrow \text{Cl}^- + \text{I}$
  • B$\text{Cl}_2 + 2\text{I}^- \rightarrow \text{Cl}_2^- + \text{I}_2$
  • C$\text{Cl}_2 + 2\text{I}^- \rightarrow 2\text{Cl}^- + \text{I}_2$
  • D$\text{Cl}_2 + 2\text{I}^- \rightarrow 2\text{Cl}^- + 2\text{I}$

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