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Carboxylic acids: Edexcel International GCSE Chemistry questions

Every Edexcel International GCSE Chemistry exam question on Carboxylic acids (specification points 4.34–4.37), 2019–2025, with its mark scheme and examiner’s report.

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2,333 questions

  1. Q4(b)(i)

    June 2025 · Paper 2

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  2. Q4(b)(ii)

    June 2025 · Paper 2

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  3. Q7(a)(iii)

    November 2024 · Paper 2

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  4. Q5(a)(i)

    November 2023 · Paper 2

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  5. Q5(a)(ii)

    November 2023 · Paper 2

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  6. Q7(c)(ii)

    June 2023 (R) · Paper 2

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  7. Q6(a)(i)

    January 2023 · Paper 2

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  8. Q5(b)(i)

    June 2022 · Paper 2

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  9. Q5(b)(ii)

    June 2022 · Paper 2

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  10. Q5(c)(ii)

    June 2022 (R) · Paper 2

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  11. Q7(a)(iii)

    January 2022 · Paper 2

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  12. Q4(a)

    January 2022 (R) · Paper 2

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  13. Q3(b)(ii)

    January 2021 · Paper 2

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  14. Q4(c)(i)

    November 2020 · Paper 2

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  15. Q4(c)(ii)

    November 2020 · Paper 2

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  16. Q7(c)(ii)

    January 2020 (R) · Paper 2

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  17. Q6(d)(ii)

    June 2019 · Paper 2

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  18. Q6(d)(iii)

    June 2019 · Paper 2

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  19. Q5(a)(i)

    June 2019 (R) · Paper 2

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  20. Q5(a)(ii)

    June 2019 (R) · Paper 2

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All 20 questions on Carboxylic acids, as a list
  1. June 2025, Paper 2, Q4(b)(i) (2 marks): Complete the chemical equation for this reaction. (2) 2CH3COOH + Na2CO3 → + +
  2. June 2025, Paper 2, Q4(b)(ii) (2 marks): State two observations seen in this reaction. (2) 1 2
  3. November 2024, Paper 2, Q7(a)(iii) (3 marks): Carboxylic acid B has a chain of carbon atoms with no branches. The number of CH2 units is represented by the letter n. Calculate the value of n. [for carboxyli
  4. November 2023, Paper 2, Q5(a)(i) (2 marks): Complete the equation for this reaction. (2) + → (CH3COO)2Mg +
  5. November 2023, Paper 2, Q5(a)(ii) (2 marks): Give two observations that could be made during this reaction. (2) 1 2
  6. June 2023 (R), Paper 2, Q7(c)(ii) (1 mark): Give the displayed formula of the carboxylic acid used to make this ester. (1)
  7. January 2023, Paper 2, Q6(a)(i) (1 mark): Draw a circle around the functional group in ethanoic acid. (1)
  8. June 2022, Paper 2, Q5(b)(i) (2 marks): Complete the equation for this reaction. (2) 2HCOOH + Na2CO3 → + +
  9. June 2022, Paper 2, Q5(b)(ii) (1 mark): State what you would observe in this reaction. (1)
  10. June 2022 (R), Paper 2, Q5(c)(ii) (1 mark): This is the structural formula of aspirin. O O CH3 C O C6H4 C O H Draw a circle around the carboxylic acid functional group. (1)
  11. January 2022, Paper 2, Q7(a)(iii) (2 marks): Describe a chemical test, other than using an indicator, to show that the reaction mixture contains ethanoic acid. (2)
  12. January 2022 (R), Paper 2, Q4(a) (3 marks): The boxes give some information about a carboxylic acid. Complete the boxes by giving the missing information. (3) structural formula CH3COOH name CH2O displaye
  13. January 2021, Paper 2, Q3(b)(ii) (1 mark): Deduce the relationship between the number of carbon atoms in the molecule and the time taken to produce 10 cm3 of hydrogen gas. (1)
  14. November 2020, Paper 2, Q4(c)(i) (3 marks): Complete the table by giving the missing information. (3)
  15. November 2020, Paper 2, Q4(c)(ii) (1 mark): Name the homologous series that contains these compounds. (1)
  16. January 2020 (R), Paper 2, Q7(c)(ii) (2 marks): Indicators can be used to test for carboxylic acids. Describe a different chemical test for a carboxylic acid. (2)
  17. June 2019, Paper 2, Q6(d)(ii) (2 marks): The structural formula of ethanoic acid is CH3COOH Draw the displayed formula of ethanoic acid. (2)
  18. June 2019, Paper 2, Q6(d)(iii) (2 marks): Complete the equation for the reaction of ethanoic acid with sodium. (2) CH3COOH(aq) + Na(s) → (aq) + (g)
  19. June 2019 (R), Paper 2, Q5(a)(i) (2 marks): Complete the chemical equation for the reaction of ethanoic acid, CH3COOH, with potassium carbonate solution. (2) 2CH3COOH + K2CO3 → + +
  20. June 2019 (R), Paper 2, Q5(a)(ii) (1 mark): State what you would see in this reaction. (1)

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