Edexcel IGCSE Chemistry Past Papers
Every question paper and mark scheme from 2014–2024, free to download. 21 exam sittings, 104 papers.
All Edexcel IGCSE Chemistry papers below are free — no account and no download limit. Each sitting lists every unit with its question paper and mark scheme side by side, along with the paper reference printed on the booklet.
2023
2021
About Edexcel IGCSE Chemistry past papers
This page holds 52 question papers and 50 mark schemes for IGCSE Chemistry, covering 21 exam sittings from 2014 to 2024. Every paper is free to open, with no account and no download limit, and each one sits beside its mark scheme so you can mark your own work the way an examiner would. The most recent sitting here is May 2024.
The units covered are P1C, P2C, P1, P2, P1CR and P2CR. Papers appear under more than one specification code — 4CH0 and 4CH1 — because the qualification has been revised during this period. Older papers remain useful: most of the subject content carries over, and the extra practice is worth more than a tidy archive. Each paper is labelled with its own code so you can see which generation it belongs to. Papers marked R are replacement papers, set for a different time zone. They cover the same specification to the same standard, and because fewer students work through them they are a good choice when you want a paper you have not already seen.
Papers here come from the January, May, June, October and November series — about 1.9 sittings a year across the 11 years covered, which is why there is usually a recent paper available whichever session you are entered for. 2 of the question papers here do not yet have their mark scheme beside them; the rest are complete pairs. If you need one of the missing schemes, tell us and it usually goes up within a few days.
Revising Chemistry
Chemistry splits into three parts that fail in different ways: recall, calculation and practical method.
The recall questions — tests for gases, colour changes, reactivity order — are the cheapest marks in the paper and the most commonly dropped, because they feel too simple to revise. They are not. Make a single page of them and test yourself on it weekly until it is automatic.
The calculations, particularly moles, are where working out matters. Set each one out in full: what you are given, the relationship you are using, then the substitution. Examiners award marks along the way, and an answer that is wrong by a factor of ten still earns most of them if the method is visible.
Practical questions ask you to describe method, not to recall a result. Precision in the wording — naming the control variable, saying how a measurement is taken — is what separates a two-mark answer from a four-mark one.
More: how to use a past paper · what the codes mean · turn a mark into a grade