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OCR GCSE Chemistry B (Foundation Tier) – Paper 2 Mark Scheme (J258/02) – 2025
This mark scheme provides the official marking guidance for Paper 2 of the OCR GCSE Chemistry B (9–1) Foundation Tier examination, showing how marks are awarded and what examiners expect from 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 and final marks
Support for data interpretation and practical-based questions
Examiner notes explaining common errors and how marks are credited
The mark scheme aligns fully with Paper 2 content, covering chemical reactions and energy, rates of reaction, organic chemistry, chemical analysis, chemistry of the atmosphere, and using resources, ensuring accurate and consistent marking.
This resource is ideal for teachers, tutors, and students, supporting:
Accurate marking of mock exams
Understanding how marks are awarded
Improving exam technique
Building confidence with Foundation Tier chemistry questions
| Author | virginia |
| Published | 23 Jan 2026 |
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