2025 OCR GCSE Chemistry A Foundation tier PAPER 1 MARK SCHEME J248/01
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CR GCSE Chemistry A (Foundation Tier) – Paper 1 Mark Scheme (J248/01) – 2025
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CR GCSE Chemistry A (Foundation Tier) – Paper 1 Mark Scheme (J248/01) – 2025


This mark scheme provides the official guidance for marking Paper 1 of the OCR GCSE Chemistry A (9–1) Foundation Tier examination, clearly showing how marks are awarded and what examiners expect in student responses.


It includes:




  • Clear marking points for every question




  • Acceptable answers and alternative wording appropriate for Foundation Tier




  • Guidance for simple calculations, including method marks and final answers




  • Support for data interpretation and practical-based questions




  • Examiner notes explaining common mistakes and how marks are credited




The mark scheme aligns fully with Paper 1 content, covering atomic structure, bonding, quantitative chemistry, chemical changes, and energy changes, ensuring accurate and consistent marking.


This resource is ideal for teachers, tutors, and students, supporting:




  • Marking mock exams accurately




  • Understanding examiner expectations




  • Improving exam technique




  • Building confidence with Foundation Tier chemistry answers



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Author virginia
Published 23 Jan 2026
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