Question 16
[Maximum number: 1]
Which oxide is classified as an amphoteric oxide?
A
aluminium oxide
B
calcium oxide
C
copper(II) oxide
D
nitrogen oxide
CAIE IGCSE Chemistry Aluminium Oxide and Zinc Oxide
Practise identifying aluminium oxide and zinc oxide as amphoteric and using their reactions with both acids and alkalis to justify the classification.
How this is tested
- identify aluminium oxide and zinc oxide as the required amphoteric oxides
- justify amphoteric classification by reaction with both acids and alkalis
- distinguish amphoteric oxides from basic metal oxides and neutral carbon monoxide