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Oxides past paper questions

O Level Chemistry 5070 · Acids, bases and salts. 1 Describe amphoteric oxides as oxides that react with acids and bases to produce a salt and water 2 Classify oxides as acidic, including SO2 and CO2, basic, including CuO and CaO, or amphoteric, limited to Al2O3 and ZnO, related to metallic and non-metallic character

It came up in 17 of 72 papers, for about 1 marks a paper when it does. It last came up in October/November 2025.

Often set with Formulae, Redox, The mole and the Avogadro constant, Reversible reactions and equilibrium.

17 questions, newest first

1. 5070/11/O/N/25 Question 18 · 1 mark
2. 5070/11/M/J/25 Question 21 · 1 mark
3. 5070/21/M/J/25 Question 7 part (d) · 1 mark
4. 5070/11/O/N/24 Question 20 · 1 mark
5. 5070/12/O/N/24 Question 23 · 1 mark
6. 5070/21/M/J/24 Question 5 part (d) · 2 marks
7. 5070/22/M/J/24 Question 5 part (d) · 2 marks
8. 5070/11/O/N/23 Question 21 · 1 mark
9. 5070/12/O/N/23 Question 20 · 1 mark
10. 5070/21/M/J/23 Question 1 part (b) · 1 mark
11. 5070/22/M/J/23 Question 1 parts (a) (d) · 2 marks
12. 5070/12/O/N/22 Question 5 · 1 mark
13. 5070/22/M/J/22 Question 2 part (e(ii)) · 1 mark
14. 5070/21/O/N/21 Question 2 part (b) · 2 marks
15. 5070/22/M/J/21 Question 4 part (d(ii)) · 1 mark
16. 5070/11/M/J/20 Question 19 · 1 mark
17. 5070/21/M/J/20 Question 1 parts (b) (e) · 2 marks

More in Acids, bases and salts: The characteristic properties of acids and bases, Preparation of salts.

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