OCR Chemistry resources
Answers, papers and course maps
Direct Ritchie and Gent textbook answer files, public Cambridge OCR question papers, mark schemes and examiner reports, practical activities, data sheets and grade-boundary documents.





Choose the correct qualification
OCR Chemistry routes
AS and A-level paper numbers overlap. Each archive keeps the full qualification and component code visible.
AS and Year 12
Two papers covering Modules 1–4.
Open AS resources →A Level Chemistry A H432Full A-level
Three papers covering Modules 1–6.
Open A-level resources →GCSE Gateway J248Chemistry A
Foundation Papers 1–2 and Higher Papers 3–4.
Open Gateway resources →GCSE 21st Century J258Chemistry B
Foundation and Higher Breadth and Depth papers.
Open 21st Century resources →More ways to practise
These are additional study websites. The publisher answer links and official exam-paper links above are unchanged.
OCR A topic practice
Revision, question sets and interactive chemistry activities organised by topic.
Year 12 practice ↗Year 13 practice ↗Other exam subjects
Browse genuine official past-paper links across subjects and keep track of your revision.
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