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2025 OCR A Level Chemistry B Paper 1 and Mark Scheme Combined (H433/01 Fundamentals of Chemistry)
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2025 OCR A Level Chemistry B Paper 1 and Mark Scheme Combined (H433/01 Fundamentals of Chemistry)
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2025 OCR A Level Chemistry B Paper 1 and Mark Scheme Combined (H433/01 Fundamentals of Chemistry)

  • Paper code: H433/01.

  • Full title: “Fundamentals of Chemistry”.

  • It is the first written component for A‑Level Chemistry B (Salters). Students must complete this (along with other components) to obtain the full A‑Level qualification. 

  • Assessment: 110 marks, 2 hours 15 minutes written exam. 

  • Paper contributes 41% of the total A‑Level Chemistry B assessment.


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Author Proficient Academic Tutor
Published 08 Dec 2025
Included files PDF
OCR A Level Chemistry B H433/01 Paper 1 2025 exam fundamentals of chemistry inorganic chemistry organic chemistry physical chemistry mark scheme
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