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प्रश्न
Which of the following is an amphoteric oxide?
विकल्प
Na2O
K2O
CO2
Al2O3
MCQ
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उत्तर
Al2O3
Explanation:
Amphoteric oxides are oxides that react with both acids and bases to form salt and water. Na2O and K2O are basic oxides. CO2 is an acidic oxide. Al2O3 reacts with both acids and bases, showing an amphoteric nature.
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