Spectroscopy and chromatography in Unit 4 — Chemistry IAL Past Papers

31 papers, 2014–2025 · Unit 4

The Chemistry IAL Unit 4 — Rates, Equilibria and Further Organic Chemistry past papers in the collection that assess spectroscopy and chromatography.

By unit: all units (106) · Unit 2 (31) · Unit 3 (20) · Unit 4 (31) · Unit 6 (23) · Unit 7 (1)

Unit 4: on 31 of 31 papers, 2–14 marks a paper (8 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 · Q7 · 1 mark, Q8 · 1 mark, Q16 · 6 marks — question paper and mark scheme
Unit 4 · January 2025 · Q17 (a, b(i), b(ii), b(iii)) · 10 marks, Q20 (e(i)) · 1 mark — question paper and mark scheme
Unit 4 · October 2024 · Q3 (c) · 1 mark, Q12 · 1 mark, Q16 (b(i), b(ii), c) · 6 marks — question paper and mark scheme
Unit 4 · June 2024 · Q13 · 1 mark, Q14 · 1 mark — question paper and mark scheme
Unit 4 · January 2024 · Q11 (c) · 1 mark, Q18 (d(i), d(ii)) · 4 marks — question paper and mark scheme
Unit 4 · October 2023 · Q12 · 1 mark, Q13 (a, b) · 2 marks, Q17 (b(i), b(ii), b(iii), b(iv)) · 7 marks — question paper and mark scheme
Unit 4 · June 2023 · Q4 (a, b) · 2 marks, Q19 (a(i), a(ii)) · 9 marks, Q22 (a) · 3 marks — question paper and mark scheme
Unit 4 · January 2023 · Q16 · 1 mark, Q18 (b(iii), b(iv), b(v)) · 6 marks · needs (b(ii)) — question paper and mark scheme
Unit 4 · October 2022 · Q14 · 1 mark, Q17 (d) · 6 marks — question paper and mark scheme
Unit 4 · June 2022 · Q1 (a, b, c) · 3 marks, Q2 · 1 mark, Q3 · 1 mark, Q4 · 1 mark, Q17 (d(i), d(ii)) · 2 marks — question paper and mark scheme
Unit 4 · January 2022 · Q16 · 1 mark, Q17 · 1 mark, Q20 (c) · 2 marks — question paper and mark scheme
Unit 4 · October 2021 · Q16 (b(i), c) · 11 marks · then (b(ii)) — question paper and mark scheme
Unit 4 · June 2021 · Q8 (b) · 1 mark, Q11 (a, b) · 2 marks, Q12 · 1 mark, Q17 (c(i), c(ii)) · 4 marks — question paper and mark scheme
Unit 4 · January 2021 · Q16 · 1 mark, Q17 (d(i), d(iv)) · 4 marks, Q19 (c(iii)) · 2 marks — question paper and mark scheme
Unit 4 · October 2020 · Q17 (a, b(i), b(ii)) · 8 marks — question paper and mark scheme
Unit 4 · October 2020 · Q4 (a, b) · 2 marks, Q9 · 1 mark, Q15 (c(i), c(ii), c(iii)) · 5 marks · needs (a(ii), b) — question paper and mark scheme
Unit 4 · January 2020 · Q16 (a(i), a(ii), a(iii), b(i), b(ii)) · 10 marks — question paper and mark scheme
Unit 4 · October 2019 · Q13 (b) · 1 mark, Q15 · 1 mark, Q18 (b) · 2 marks, Q19 · 7 marks — question paper and mark scheme
Unit 4 · June 2019 · Q17 · 1 mark, Q20 · 1 mark, Q25 (b(ii), b(iii)) · 5 marks · then (b(iv)) — question paper and mark scheme
Unit 4 · January 2019 · Q19 · 1 mark, Q20 · 1 mark, Q22 (d(i), d(ii)) · 5 marks — question paper and mark scheme
Unit 4 · October 2018 · Q20 · 1 mark, Q23 (c(i), c(ii), d(i), d(ii)) · 7 marks — question paper and mark scheme
Unit 4 · June 2018 · Q1 · 1 mark, Q3 (a, b) · 2 marks, Q4 (f) · 1 mark, Q12 (d) · 5 marks — question paper and mark scheme
Unit 4 · January 2018 · Q21 (b(i), b(ii), d(i)) · 5 marks — question paper and mark scheme
Unit 4 · October 2017 · Q14 (a) · 1 mark, Q15 · 1 mark, Q16 · 1 mark, Q19 (d) · 2 marks, Q20 · 6 marks — question paper and mark scheme
Unit 4 · June 2017 · Q13 · 1 mark, Q14 (b) · 1 mark, Q18 (c(i), c(ii), c(iii)) · 8 marks — question paper and mark scheme
Unit 4 · January 2017 · Q17 · 1 mark, Q18 · 1 mark, Q19 · 1 mark, Q20 · 1 mark, Q22 (d) · 4 marks — question paper and mark scheme
Unit 4 · January 2016 · Q12 · 1 mark, Q21 (a, b(i), b(iv)) · 8 marks · needs (b(ii), b(iii)) — question paper and mark scheme
Unit 4 · June 2015 · Q4 · 1 mark, Q9 · 1 mark, Q11 (b) · 1 mark, Q17 (b, d(ii), d(iii)) · 6 marks — question paper and mark scheme
Unit 4 · January 2015 · Q16 · 1 mark, Q17 · 1 mark, Q24 (b(iii), b(iv), b(vi)) · 8 marks · needs (b(ii)) · then (b(v)) — question paper and mark scheme
Unit 4 · June 2014 · Q15 (b) · 1 mark, Q20 (b(iii)) · 1 mark — question paper and mark scheme
Unit 4 · January 2014 · Q1 · 1 mark, Q2 (a, b, c) · 3 marks, Q15 · 1 mark, Q16 (d) · 2 marks — question paper and mark scheme

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