Which of the following oxides is amphoteric?
...Which of the following oxides is amphoteric?
Carbon(II) oxide
Nitrogen(IV) oxide
Lead(II) oxide
Calcium oxide
Correct answer is C
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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