Is this Pearson Edexcel Chemistry past paper free?

Yes. The 2025 October question paper and mark scheme are free to view on SuperExams, no payment needed to read the paper.

Does this include the 2025 October mark scheme?

Yes. The official Pearson Edexcel mark scheme for Chemistry Unit 4 2025 October is included, so you can mark your work and understand exactly how each mark is awarded.

Are step-by-step worked solutions available?

Worked solutions and an AI tutor are available across SuperExams to help you understand each question and improve your exam technique.

Chemistry · Unit 4

2025 October

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Browse/International A-Level/Chemistry/Unit 4

Pearson Edexcel Chemistry Unit 4 · 2025 October

This page gives you the Pearson Edexcel International A-Level Chemistry Unit 4 paper, 2025 October from the OCTOBER 2025 examination series. You can read the question paper and its official mark scheme for free, work through it like the real exam, and check your answers question by question.

Chemistry Unit 4 is part of the Pearson Edexcel International A-Level qualification. Practising with real past papers like this 2025 October paper is one of the most effective ways to prepare. It shows you the exact style, difficulty and topic spread the examiners use, so there are no surprises on exam day.

What's on this page

Question paper. The full 2025 October Unit 4 question paper, exactly as sat in the exam.
Mark scheme. The official Pearson Edexcel mark scheme, so you can mark your answers and see how marks are awarded.

How to use this paper

Try the 2025 October paper under timed conditions first, without looking at the answers. When you finish, open the mark scheme to grade yourself honestly and note every mark you missed. Then revisit the topics where you lost marks before attempting another paper from this unit.

Frequently asked questions

Is this Pearson Edexcel Chemistry past paper free?: Yes. The 2025 October question paper and mark scheme are free to view on SuperExams, no payment needed to read the paper.
Does this include the 2025 October mark scheme?: Yes. The official Pearson Edexcel mark scheme for Chemistry Unit 4 2025 October is included, so you can mark your work and understand exactly how each mark is awarded.
Are step-by-step worked solutions available?: Worked solutions and an AI tutor are available across SuperExams to help you understand each question and improve your exam technique.

More Unit 4 papers →All Chemistry past papers →Browse International A-Level →