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Carboxylic acids past paper questions

O Level Chemistry 5070 · Organic chemistry. 1 Describe the reactions of carboxylic acids with: (a) metals (b) bases (c) carbonates including names and formulae of the salts produced 2 Describe the formation of ethanoic acid by the oxidation of ethanol: (a) with acidified aqueous potassium manganate(VII) (b) by bacterial oxidation during vinegar production 3 Describe the reaction of a carboxylic acid with an alcohol using an acid catalyst to form an ester

In Cambridge O Level Chemistry 5070, Carboxylic acids came up in 38 of the 72 papers on Paperstreak, for about 3 marks a paper when it does. It last came up in October/November 2025.

Often set with Formulae, functional groups and terminology, Naming organic compounds, The characteristic properties of acids and bases, Polymers.

48 questions, newest first

  1. 5070/11/O/N/25 Question 35 · 1 mark
  2. 5070/12/O/N/25 Question 32 · 1 mark
  3. 5070/12/O/N/25 Question 35 · 1 mark
  4. 5070/21/O/N/25 Question 1 part (a(v)) · 1 mark
  5. 5070/22/O/N/25 Question 8 parts (d) (e) (f(i)) (f(ii)) · 5 marks
  6. 5070/12/M/J/25 Question 36 · 1 mark
  7. 5070/21/M/J/25 Question 8 parts (b(i)) (b(ii)) (b(iii)) · 3 marks
  8. 5070/22/M/J/25 Question 4 parts (c(i)) (d) (e(iii)) (e(iv)) · 6 marks
  9. 5070/22/M/J/25 Question 8 parts (c(i)) (c(ii)) · 3 marks
  10. 5070/12/O/N/24 Question 37 · 1 mark
  11. 5070/21/O/N/24 Question 7 part (a(iii)) · 2 marks
  12. 5070/22/O/N/24 Question 7 part (e(i)) · 3 marks
  13. 5070/21/M/J/24 Question 8 parts (b) (d) (e) · 5 marks
  14. 5070/22/M/J/24 Question 8 parts (c(i)) (d) (e) · 5 marks
  15. 5070/11/O/N/23 Question 38 · 1 mark
  16. 5070/21/O/N/23 Question 8 part (b) · 2 marks
  17. 5070/11/M/J/23 Question 38 · 1 mark
  18. 5070/12/M/J/23 Question 37 · 1 mark
  19. 5070/21/M/J/23 Question 7 parts (e(i)) (e(ii)) · 2 marks
  20. 5070/11/O/N/22 Question 27 · 1 mark
  21. 5070/11/O/N/22 Question 38 · 1 mark
  22. 5070/12/O/N/22 Question 38 · 1 mark
  23. 5070/22/O/N/22 Question 7 part (c) · 2 marks
  24. 5070/11/M/J/22 Question 37 · 1 mark
  25. 5070/21/M/J/22 Question 3 parts (b) (c) · 4 marks
  26. 5070/22/M/J/22 Question 3 part (a) · 4 marks
  27. 5070/11/O/N/21 Question 39 · 1 mark
  28. 5070/12/O/N/21 Question 39 · 1 mark
  29. 5070/21/O/N/21 Question 8 part (e) · 1 mark
  30. 5070/22/O/N/21 Question 8 parts (c) (e) (g) · 4 marks
  31. 5070/11/M/J/21 Question 38 · 1 mark
  32. 5070/21/M/J/21 Question 1 part (a(ii)) · 1 mark
  33. 5070/21/M/J/21 Question 9 part (c(i)) · 1 mark
  34. 5070/22/M/J/21 Question 1 part (a(ii)) · 1 mark
  35. 5070/22/M/J/21 Question 3 part (b(vi)) · 1 mark
  36. 5070/22/M/J/21 Question 9 part (c(i)) · 1 mark
  37. 5070/42/M/J/21 Question 4 parts (b(ii)) (b(iii)) (c(i)) · 4 marks
  38. 5070/11/O/N/20 Question 37 · 1 mark
  39. 5070/12/O/N/20 Question 37 · 1 mark
  40. 5070/12/O/N/20 Question 38 · 1 mark
  41. 5070/21/O/N/20 Question 6 parts (c) (d(i)) · 3 marks
  42. 5070/22/O/N/20 Question 6 parts (b(i)) (d(i)) (d(ii)) · 3 marks
  43. 5070/11/M/J/20 Question 36 · 1 mark
  44. 5070/11/M/J/20 Question 37 · 1 mark
  45. 5070/21/M/J/20 Question 4 part (e(i)) · 2 marks
  46. 5070/21/M/J/20 Question 6 parts (b) (c(i)) (c(ii)) · 4 marks
  47. 5070/22/M/J/20 Question 3 part (d(i)) · 2 marks
  48. 5070/22/M/J/20 Question 6 part (c) · 1 mark

More in Organic chemistry: Formulae, functional groups and terminology, Naming organic compounds, Fuels, Alkanes, Alkenes, Alcohols, Polymers.

Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.