Some metal oxides react with acid as well as a base to produce salt and water. They are known as amphoteric oxides. Examples of amphoteric oxides are
Detailed Explanation:
Amphoteric oxides react with both acids and bases to form salt and water.
✅ Al₂O₃ (Aluminium oxide) reacts with HCl to give AlCl₃ + H₂O and with NaOH to give NaAlO₂ + H₂O.
✅ ZnO (Zinc oxide) reacts with H₂SO₄ to give ZnSO₄ + H₂O and with NaOH to give Na₂ZnO₂ + H₂O.
❌ CuO (Copper oxide) is a basic oxide that reacts only with acids, not with bases.
Therefore, Option 2 (Al₂O₃ and ZnO) is the correct answer.
Question 3 of 8 Acids, Bases and Salts
Practice PYQ questions from this topic across all years
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