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NEETChemistryd and f Block Elements

Identify the set in which all three oxides are amphoteric in nature.

Options

  1. ASnO₂ , PbO₂ , Al₂O₃
  2. BCO , NO , N₂O
  3. CCO₂ , SiO₂ , SO₂
  4. DTl₂O , Bi₂O₃ , In₂O₃

Correct answer

A. SnO₂ , PbO₂ , Al₂O₃

Step-by-step solution

Amphoteric oxides can react with both acids and bases. SnO₂ , PbO₂ , and Al₂O₃ are well-known amphoteric oxides. CO , NO , and N₂O are neutral oxides. CO₂ , SiO₂ , and SO₂ are non-metal oxides and are acidic in nature. Tl₂O , Bi₂O₃ , and In₂O₃ are oxides of heavy p-block metals and are basic in nature. Answer: SnO₂ , PbO₂ , Al₂O₃

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