CAIE IGCSE Chemistry 7.2.2 Amphoteric oxides as oxides that react
Practise recognising amphoteric oxides from their reactions with both acids and bases, including salt-and-water products.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- state that amphoteric oxides neutralise both acids and alkalis
- use reaction tables to pick an oxide that reacts with HCl and NaOH(aq)
- write or complete equations where Al2O3 reacts with NaOH to form a salt and water
7.2.2—Amphoteric oxides as oxides that react question 1
[Maximum number: 1]
Solid sodium hydroxide is a base which dissolves to form an aqueous solution, NaOH(aq).
Some metal oxides react with NaOH(aq).
State the term given to metal oxides which react with bases such as NaOH(aq).
amphoteric (oxides)
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