Edexcel GCSE Chemistry (1CH0) — 2023 Past Papers

Edexcel GCSE Chemistry (1CH0) is mainly examined in the June series each year. The 2023 papers on this page cover the one session that ran in 2023: June 2023. Pearson Edexcel publishes question papers and mark schemes after each session.

View the Cambridge / Edexcel exam timetables →

Edexcel GCSE Chemistry is a tiered qualification: every student sits either the Foundation-tier papers or the Higher-tier papers, never both. The Foundation tier caps at grade 5; the Higher tier reaches up to grade 9. Foundation papers focus on the more accessible content of the specification; Higher papers include the more demanding topics and questions. Both tiers cover the same overall syllabus, but Higher goes deeper and faster. Mark schemes and grade thresholds are set separately for each tier.

Your school decides which tier each student sits, usually based on predicted-grade evidence. Foundation tier is appropriate if a grade 5 would be a strong outcome and the Higher-tier content feels too unstable. Higher tier is appropriate if grade 6+ is realistic and the student is comfortable with the harder questions during practice. Sitting Higher and underperforming caps you at "unclassified" below grade 3 (so the safety-net argument matters in borderline cases). Practise past papers at both tiers if you're undecided, then talk to your teacher with that data in hand.

Edexcel GCSE is the UK domestic GCSE used by schools in England and Wales, with subject codes like 1CH0 (typically starting with "1"). Edexcel International GCSE (IGCSE) is the international version used worldwide, with different subject codes (typically starting with "4", e.g. 4BI1 for Biology). Both are Pearson qualifications and both are tiered or untiered depending on the subject, but they have different specifications, exam dates and grade-boundary calibration. UK universities accept either. If you're at a UK state school you'll typically sit GCSE; international schools more often choose IGCSE.

Yes — and LumiExams makes them easy to find. Pearson Edexcel publishes 1CH0 question papers, mark schemes (and examiner reports where released) as free educational materials after each session. The PDFs are © Pearson Education Ltd; LumiExams does not own these documents, we organise the official Edexcel PDFs by year and session so you can study with the same materials your teachers reference, and we link directly to each file. For official specifications, registration and assessment policy, refer to qualifications.pearson.com.

Work through one full paper under timed exam conditions, mark it against the official mark scheme, then read the examiner report for that session (where Pearson has published one). The examiner report calls out where students lost the most marks and why — that's the highest-leverage revision target. Sit the tier you've been entered for (Foundation or Higher), not the other one. Pearson updates the Edexcel specification every few years, so the 2023 papers reflect the specification active in 2023; before relying on these for the year you're sitting, check the current 1CH0 specification on the Pearson Edexcel website.

Pearson Edexcel official GCSE specifications →