CBSE Class 10 Science 2019 · Paper 31/2/1 · Question 8
What are amphoteric oxides ? Give an example. Write balanced chemical equations to justify your answer.
Answer
Amphoteric oxides react with both acids and bases to give salt and water; aluminium oxide is an example.
Amphoteric oxides are metal oxides that react with both acids and bases to produce salt and water; that is, they show both basic and acidic behaviour. Example: aluminium oxide, (zinc oxide, , is another).
With an acid (behaving as a base):
With a base (behaving as an acid): (sodium aluminate)
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