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Spectroscopy and chromatography
Spectroscopy and chromatography — Chemistry IAL Past Papers
106 papers, 2014–2025 · Unit 2, Unit 3, Unit 4, Unit 6, Unit 7
Every Chemistry IAL past paper in the collection that assesses spectroscopy and chromatography.
By unit: all units (106) · Unit 2 (31) · Unit 3 (20) · Unit 4 (31) · Unit 6 (23) · Unit 7 (1)
Unit 2 : on 31 of 32 papers, 1–7 marks a paper (3 on average)Unit 3 : on 20 of 32 papers, 1–5 marks a paper (2 on average)Unit 4 : on 31 of 31 papers, 2–14 marks a paper (8 on average)Unit 6 : on 23 of 29 papers, 1–9 marks a paper (3 on average)Unit 7 : on 1 of 1 papers, 4 marks a paper
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 2 · June 2025 · Q12 (a) · 1 mark, Q16 (c(ii)) · 2 marks — question paper and mark scheme
Unit 3 · June 2025 · Q1 (c, d) · 5 marks — question paper and mark scheme
Unit 4 · June 2025 · Q7 · 1 mark, Q8 · 1 mark, Q16 · 6 marks — question paper and mark scheme
Unit 2 · January 2025 · Q20 · 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 2 · October 2024 · Q14 (b) · 1 mark, Q15 · 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 2 · June 2024 · Q20 (a(ii), a(iii)) · 5 marks — question paper and mark scheme
Unit 6 · June 2024 · Q1 (c(ii)) · 1 mark · needs (a, b, c(i)) — question paper and mark scheme
Unit 4 · June 2024 · Q13 · 1 mark, Q14 · 1 mark — question paper and mark scheme
Unit 2 · January 2024 · Q20 · 1 mark, Q23 (c(iii)) · 2 marks — question paper and mark scheme
Unit 3 · January 2024 · Q1 (c(i), c(ii)) · 2 marks — question paper and mark scheme
Unit 6 · January 2024 · Q2 (b(ii)) · 2 marks — 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 2 · October 2023 · Q14 (a, b) · 2 marks, Q21 (a(ii), a(iv)) · 4 marks · needs (a(i), a(iii)) — 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 2 · June 2023 · Q21 (c) · 2 marks — question paper and mark scheme
Unit 3 · June 2023 · Q2 (d(ii), d(iii)) · 3 marks · needs (d(i)) — question paper and mark scheme
Unit 6 · June 2023 · Q2 (b) · 1 mark — 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 2 · January 2023 · Q15 · 1 mark, Q16 · 1 mark — 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 2 · October 2022 · Q22 (c(iii)) · 2 marks — question paper and mark scheme
Unit 6 · October 2022 · Q3 (e(i), e(ii)) · 5 marks — question paper and mark scheme
Unit 4 · October 2022 · Q14 · 1 mark, Q17 (d) · 6 marks — question paper and mark scheme
Unit 2 · June 2022 · Q14 (c) · 1 mark — question paper and mark scheme
Unit 6 · June 2022 · Q2 (c) · 2 marks · needs (a(i)) — 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 2 · January 2022 · Q24 (d(i), d(ii)) · 2 marks — question paper and mark scheme
Unit 3 · January 2022 · Q2 (d, e(i), e(ii)) · 4 marks — question paper and mark scheme
Unit 6 · January 2022 · Q2 (c, d(ii), d(iii), e(ii)) · 9 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 2 · October 2021 · Q1 · 1 mark, Q4 · 1 mark, Q5 · 1 mark — question paper and mark scheme
Unit 6 · October 2021 · Q4 (f(iii)) · 2 marks · needs (f(i)) — question paper and mark scheme
Unit 4 · October 2021 · Q16 (b(i), c) · 11 marks · then (b(ii)) — question paper and mark scheme
Unit 2 · June 2021 · Q12 · 1 mark, Q13 · 1 mark, Q22 (c(ii), d) · 3 marks — question paper and mark scheme
Unit 3 · June 2021 · Q2 (d(i), d(ii), d(iii), d(iv)) · 5 marks — question paper and mark scheme
Unit 6 · June 2021 · Q3 (a(i), a(ii), a(iii), a(iv)) · 4 marks — 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 2 · October 2020 · Q17 (b(iv)) · 3 marks — question paper and mark scheme
Unit 3 · October 2020 · Q3 (a(v)) · 1 mark · needs (a(iv)) — question paper and mark scheme
Unit 6 · October 2020 · Q2 (b(ii)) · 4 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 6 · October 2020 · Q2 (b(vi), b(vii)) · 4 marks · needs (b(i), b(ii), b(iii), b(iv), b(v)) — question paper and mark scheme
Unit 2 · January 2020 · Q14 (a) · 1 mark, Q17 (d(iii)) · 1 mark · needs (c) — 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 2 · October 2019 · Q15 (b, c) · 2 marks — question paper and mark scheme
Unit 3 · October 2019 · Q2 (c(ii)) · 1 mark · then (c(iii)) — 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 6 · October 2019 · Q2 (b(i), b(ii), c(i), c(ii), d) · 6 marks — question paper and mark scheme
Unit 2 · June 2019 · Q12 · 1 mark, Q13 · 1 mark, Q14 · 1 mark — question paper and mark scheme
Unit 2 · June 2019 · Q18 · 1 mark, Q22 (b(ii)) · 2 marks — question paper and mark scheme
Unit 3 · June 2019 · Q2 (b, d) · 3 marks — question paper and mark scheme
Unit 3 · June 2019 · Q2 (d(ii)) · 3 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 6 · June 2019 · Q2 (b(i), b(ii), b(iii)) · 3 marks · needs (a(i)) — question paper and mark scheme
Unit 2 · January 2019 · Q19 (c(iii)) · 2 marks · needs (c(ii)), Q20 (b(ii), b(iii)) · 3 marks — question paper and mark scheme
Unit 3 · January 2019 · Q5 (d(iii)) · 1 mark — 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 6 · January 2019 · Q2 (c, e) · 3 marks · then (f) — question paper and mark scheme
Unit 2 · October 2018 · Q20 · 1 mark, Q21 (d(i), d(ii)) · 4 marks — question paper and mark scheme
Unit 3 · October 2018 · Q2 (d, e) · 4 marks — question paper and mark scheme
Unit 6 · October 2018 · Q3 (b(i), b(ii), b(iii), c(i), c(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 2 · June 2018 · Q25 (a(i), a(ii), a(iii)) · 4 marks — question paper and mark scheme
Unit 3 · June 2018 · Q2 (d(ii)) · 1 mark — question paper and mark scheme
Unit 6 · June 2018 · Q4 (c(i), c(ii)) · 2 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 2 · January 2018 · Q14 · 1 mark, Q15 · 1 mark, Q21 (c(i)) · 3 marks — question paper and mark scheme
Unit 3 · January 2018 · Q2 (b(v)) · 2 marks — question paper and mark scheme
Unit 6 · January 2018 · Q2 (a(v)) · 2 marks · needs (a(i), a(ii), a(iii), a(iv)) — question paper and mark scheme
Unit 4 · January 2018 · Q21 (b(i), b(ii), d(i)) · 5 marks — question paper and mark scheme
Unit 2 · October 2017 · Q21 (b(i), b(ii)) · 2 marks — question paper and mark scheme
Unit 3 · October 2017 · Q3 (b, d(i), d(ii)) · 3 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 6 · October 2017 · Q2 (b) · 1 mark, Q4 (c) · 2 marks — question paper and mark scheme
Unit 2 · June 2017 · Q17 · 1 mark, Q18 · 1 mark — question paper and mark scheme
Unit 6 · June 2017 · Q2 (b) · 3 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 7 · June 2017 · Q2 (f) · 4 marks · needs (a, b, c, d, e) — question paper and mark scheme
Unit 2 · January 2017 · Q3 · 1 mark, Q21 (f(i), f(ii)) · 3 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 6 · January 2017 · Q2 (c(ii), c(iii), d(iii)) · 6 marks — question paper and mark scheme
Unit 2 · October 2016 · Q17 · 1 mark, Q19 · 1 mark, Q24 (c(i)) · 2 marks — question paper and mark scheme
Unit 3 · October 2016 · Q2 (c(i), c(ii)) · 4 marks · needs (b) — question paper and mark scheme
Unit 2 · January 2016 · Q18 · 1 mark — question paper and mark scheme
Unit 3 · January 2016 · Q2 (c(ii)) · 1 mark — 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 6 · January 2016 · Q2 (b(i), b(ii)) · 3 marks — question paper and mark scheme
Unit 2 · June 2015 · Q22 (b(i), b(ii)) · 3 marks, Q23 (h) · 4 marks — question paper and mark scheme
Unit 3 · June 2015 · Q2 (e(ii)) · 1 mark — 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 6 · June 2015 · Q2 (d) · 3 marks · needs (a) — question paper and mark scheme
Unit 2 · January 2015 · Q20 (c(ii)) · 2 marks — question paper and mark scheme
Unit 3 · January 2015 · Q1 (b(iv)) · 2 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 2 · June 2014 · Q9 · 1 mark, Q21 (c(iii)) · 2 marks — question paper and mark scheme
Unit 3 · June 2014 · Q2 (d) · 1 mark — question paper and mark scheme
Unit 4 · June 2014 · Q15 (b) · 1 mark, Q20 (b(iii)) · 1 mark — question paper and mark scheme
Unit 6 · June 2014 · Q3 (d) · 3 marks · needs (a(ii), b(ii), c(ii)) — question paper and mark scheme
Unit 2 · January 2014 · Q23 (d(ii), f) · 4 marks — question paper and mark scheme
Unit 3 · January 2014 · Q2 (e) · 2 marks — 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
Unit 6 · January 2014 · Q3 (h(i), h(ii), h(iii)) · 3 marks · needs (g) — question paper and mark scheme
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