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Free IB DP Chemistry HL revision notes, worked examples, AI-marked practice questions and past papers — mapped to the new IB Chemistry guide for first exams 2025 onward.
IB Diploma Programme Chemistry Higher Level is a two-year group-4 science in the International Baccalaureate Diploma. The new guide is organised around two unifying concepts — structure and reactivity — connected by the idea that structure determines reactivity, which in turn transforms structure. HL covers all standard-level material plus additional higher-level depth, supported by a substantial practical programme; the former option topics have been removed. Assessment is two external examination papers plus an internally assessed scientific investigation, graded on the IB 1-7 scale.
| Paper | Total marks | Duration | Style of questions |
|---|---|---|---|
| Paper 1 | 75 marks | 2h | 1A multiple choice + 1B data-based, one sitting · 36% |
| Paper 2 | 90 marks | 2h 30 | Short-answer + extended-response · 44% |
| Internal Assessment | 24 marks | — | Scientific Investigation (internal) · 20% |
External 80% (Paper 1 36% + Paper 2 44%) · Internal scientific investigation 20% · graded 1-7.
Source: IB Diploma Programme Chemistry guide / subject brief
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Access IB DP resources, videos, MCQ and structured practice questions, plus quizzes with AI-powered detailed reports — all designed to make your revision simple, focused, and effective
Test your knowledge with the Pre IB quiz.
Test your knowledge with the IB HL Year 1 quiz.
Test your knowledge with the IB HL Year 2 quiz.
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All 11 topics in the IB DP Chemistry HL syllabus — click any topic to open notes, videos and an AI-marked quiz.
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