Chemistry — Modular 2024, Unit 1
Official past papers grouped by session — view the question paper and mark scheme side by side, solve in your notebook, run a timed mock, or play a paper interactively where its questions are already parsed.
2 papers · 1 sessionTwo ways to use a paper: open the Question Paper and Mark Scheme PDFs (side-by-side split on desktop, an A/B toggle on mobile) and self-mark, or run a Mock — fullscreen QP with the official timer, then grade against the MS.
Official Pearson Edexcel documents streamed from the syllabai-pastpapers archive (AI-IDENTIFIED provenance, operator ratification pending · index generated 2026-10-21).
4WCH1/1CPaper 1C
IGCSE chemistry 4XCH1 · QP 621 KB · MS 412 KB
4WCH1/1CRPaper 1CTimezone R
IGCSE chemistry 4XCH1 · QP 487 KB · MS 454 KB