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Carboxylic acids
Carboxylic acids in Unit 4 — Chemistry IAL Past Papers
30 papers, 2014–2025 · Unit 4
The Chemistry IAL Unit 4 — Rates, Equilibria and Further Organic Chemistry past papers in the collection that assess carboxylic acids.
By unit: all units (48) · Unit 4 (30) · Unit 6 (18)
Unit 4: on 30 of 31 papers, 2–16 marks a paper (7 on average)
Read question by question: blind checks found 112 of 120 question parts tagged with the right topic (95% confidence interval 87.4–96.6%). “needs (a)” names an earlier part the listed parts build on, and “then (c)” a later part that continues from them, so a question can be worked through whole.
How topics are found and checked
Papers
Unit 4 · June 2025 · Q15 (a(i), a(ii), a(iii), a(iv), a(v), b) · 11 marks — question paper and mark scheme
Unit 4 · January 2025 · Q1 · 1 mark, Q20 (b, f) · 4 marks — question paper and mark scheme
Unit 4 · October 2024 · Q2 · 1 mark, Q10 (a) · 1 mark, Q14 (a, b) · 2 marks, Q16 (c) · 1 mark — question paper and mark scheme
Unit 4 · June 2024 · Q17 (a(i), a(ii), a(iii), b(i), b(ii), b(iii), b(iv)) · 11 marks — question paper and mark scheme
Unit 4 · January 2024 · Q12 · 1 mark, Q13 · 1 mark, Q18 (a, c(i)) · 3 marks — question paper and mark scheme
Unit 4 · October 2023 · Q10 (a, c, d) · 3 marks, Q17 (a) · 6 marks — question paper and mark scheme
Unit 4 · June 2023 · Q10 · 1 mark, Q11 · 1 mark, Q14 (b) · 1 mark — question paper and mark scheme
Unit 4 · October 2022 · Q11 · 1 mark, Q15 (a, c(iii)) · 3 marks, Q17 (a(i)) · 1 mark — question paper and mark scheme
Unit 4 · June 2022 · Q5 · 1 mark, Q19 (a(i)) · 1 mark · then (a(ii), a(iii)) — question paper and mark scheme
Unit 4 · January 2022 · Q7 · 1 mark, Q14 · 1 mark, Q20 (a(iii)) · 3 marks, Q21 (b(i), b(ii)) · 6 marks — question paper and mark scheme
Unit 4 · October 2021 · Q15 · 1 mark, Q16 (b(i)) · 6 marks · then (b(ii)) — question paper and mark scheme
Unit 4 · June 2021 · Q17 (b(ii)) · 1 mark, Q19 (a(iii), b) · 5 marks — question paper and mark scheme
Unit 4 · January 2021 · Q17 (b, d(ii)) · 4 marks, Q19 (d) · 6 marks — question paper and mark scheme
Unit 4 · October 2020 · Q14 · 1 mark, Q17 (a, c(i), c(iii), d) · 12 marks — question paper and mark scheme
Unit 4 · October 2020 · Q15 (b) · 4 marks · then (c(i)), Q17 (c(i), e) · 3 marks — question paper and mark scheme
Unit 4 · January 2020 · Q4 · 1 mark, Q6 · 1 mark — question paper and mark scheme
Unit 4 · October 2019 · Q13 (a) · 1 mark, Q18 (a(i), a(iii), a(iv)) · 8 marks, Q19 · 7 marks — question paper and mark scheme
Unit 4 · June 2019 · Q13 · 1 mark, Q14 · 1 mark, Q25 (b(i), b(iv)) · 4 marks · needs (b(iii)) — question paper and mark scheme
Unit 4 · January 2019 · Q13 · 1 mark, Q22 (a(i), a(ii), a(iii), b(ii), c) · 12 marks · needs (b(i)) — question paper and mark scheme
Unit 4 · October 2018 · Q18 · 1 mark, Q19 · 1 mark, Q22 (b(i), b(ii), b(iii), b(iv)) · 9 marks — question paper and mark scheme
Unit 4 · June 2018 · Q2 · 1 mark, Q12 (b) · 2 marks — question paper and mark scheme
Unit 4 · January 2018 · Q17 · 1 mark, Q21 (a(ii), a(iv), a(vi), c(ii)) · 6 marks — question paper and mark scheme
Unit 4 · October 2017 · Q14 (c) · 1 mark, Q19 (a(i), a(iv)) · 4 marks, Q21 (c(i)) · 2 marks — question paper and mark scheme
Unit 4 · June 2017 · Q18 (b(i), b(ii), b(iii)) · 4 marks — question paper and mark scheme
Unit 4 · January 2017 · Q15 · 1 mark, Q22 (e(ii)) · 1 mark, Q23 (a, b) · 4 marks — question paper and mark scheme
Unit 4 · January 2016 · Q13 (a) · 1 mark, Q15 · 1 mark, Q19 (e(i)) · 1 mark, Q21 (b(i)) · 3 marks · then (b(iii), b(iv)) — question paper and mark scheme
Unit 4 · June 2015 · Q10 (a) · 1 mark, Q11 (c) · 1 mark — question paper and mark scheme
Unit 4 · January 2015 · Q18 · 1 mark, Q22 (b(ii)) · 2 marks, Q24 (b(v)) · 1 mark · needs (b(ii), b(iii), b(iv)) — question paper and mark scheme
Unit 4 · June 2014 · Q9 · 1 mark, Q11 · 1 mark, Q20 (b(i), c, d) · 5 marks — question paper and mark scheme
Unit 4 · January 2014 · Q16 (a, b, c, g) · 10 marks — question paper and mark scheme
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