2025 OCR AS Level Chemistry B Paper 1 and Mark Scheme Combined (H033/01 Foundations of chemistry)
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2025 OCR AS Level Chemistry B Paper 1 and Mark Scheme Combined (H033/01 Foundations of chemistry)
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2025 OCR AS Level Chemistry B Paper 1 and Mark Scheme Combined (H033/01 Foundations of chemistry)

  • “Foundations of Chemistry (H033/01)” is the first paper of the AS‑level Chemistry B (Salters) course under OCR. 

  • It is designed to cover the fundamental / foundational concepts in chemistry — the core building blocks that underpin later, more advanced topics in the A‑level course. 

  • The paper: 1 hour 30 minutes, worth 70 marks when done for AS Level