Which of the following oxides is amphoteric?

  • A Carbon(II) oxide
  • B Nitrogen(IV) oxide
  • C Lead(II) oxide
  • D Calcium oxide
waec 2022chemistry

The correct answer is C. Lead(II) oxide

Aluminium oxide is an amphoteric oxide. With sodium hydroxide solution, it produces water and sodium aluminate (NaAlO2). The other common examples of amphoteric oxides include SnO, ZnO, and PbO. Al2O3 is an amphoteric oxide.

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