Chemistry 0620 · IGCSE · Rate of reaction

Rate of reaction — practice question

Hydrogen peroxide breaks down to produce water and oxygen. The equation is shown. $\text{2H}_2\text{O}_2(\text{l}) \rightarrow \text{2H}_2\text{O}(\text{l}) + \text{O}_2(\text{g})$ Manganese(IV) oxide acts as a catalyst for this reaction. Which statements about manganese(IV) oxide are correct?

  • A1, 2 and 3
  • B1 and 2 only
  • C1 and 3 only
  • D2 and 3 only

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