Chemistry 0620 · IGCSE · Oxides

Oxides — practice question

Four metal oxides are given. 1. $\mathrm{Al_2O_3}$ 2. $\mathrm{CaO}$ 3. $\mathrm{CuO}$ 4. $\mathrm{ZnO}$. Which of these metal oxides are amphoteric?

  • A1 and 4
  • B1 only
  • C2, 3 and 4
  • D2 and 3 only

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