Unit 2: on 32 of 32 papers, 1–16 marks a paper (6 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.
Unit 2 · January 2024 · Q16 · 1 mark, Q17 · 1 mark, Q18 · 1 mark, Q19 · 1 mark — question paper and mark scheme
Unit 2 · October 2023 · Q13 (a, b) · 2 marks, Q14 (a, b) · 2 marks, Q16 · 1 mark, Q21 (a(iii), b(ii)) · 3 marks · then (a(iv)) — question paper and mark scheme
Unit 2 · January 2021 · Q14 (a, b) · 2 marks, Q19 (c(i), c(ii)) · 3 marks, Q20 (a(i), a(ii)) · 2 marks, Q21 (a) · 2 marks — question paper and mark scheme
Unit 2 · October 2020 · Q12 (c) · 1 mark, Q17 (b(i), b(ii), b(iii)) · 5 marks — question paper and mark scheme
Unit 2 · January 2020 · Q17 (a, b(i), b(ii), d(i), d(ii), e) · 8 marks · needs (c) — question paper and mark scheme
Unit 2 · October 2019 · Q14 · 1 mark, Q15 (a) · 1 mark, Q17 (a(i), b(i)) · 4 marks · then (b(ii), b(iii)) — question paper and mark scheme