H2 Chemistry Paper 4 Format
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Get a detailed look at the 2026 H2 Chemistry Paper 4 practical paper, including planning, PDO/ACE, qualitative analysis, and how to train for the two-and-a-half-hour, 50-mark exam.
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Q: What does H2 Chemistry Paper 4 Format cover?
A: Get a detailed look at the 2026 H2 Chemistry Paper 4 practical paper-its planning, PDO/ACE, and qualitative analysis components-and learn how to train for the two-and-a-half-hour, 50-mark exam.
Exam snapshot Paper 4 | 2 h 30 min | 50 marks | 20 % of the overall H2 Chemistry grade
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| If you have... | Walk away with this | First action |
| 1 second | Paper 4 tests clean lab thinking. | Record raw observations and readings. |
| 10 seconds | Planning, MMO, PDO, and ACE are linked. | Make the method produce data you can analyse. |
| 100 seconds | The best answers explain why a step improves reliability or accuracy. | Tie each precaution to an error it prevents. |
Concrete example: If you suggest rinsing the burette with titrant, also state why: water left inside would dilute the titrant and make the titre unreliable.
Paper 4 tests whether you can execute practical chemistry cleanly, then justify every decision. The 2026 specimen paper mirrors the new emphasis on spreadsheet-style processing and clear communication of uncertainty. Advance preparation-both in the lab and on paper-is key to scoring consistently.
Status: SEAB's current H2 Chemistry (9476) syllabus PDF is labelled for 2026, and the 9476/04 specimen paper is labelled for examination from 2026. Paper 4 is 2 h 30 min, 50 marks, weighting 20%, with Planning at 4% and MMO/PDO/ACE at 16% combined.
Code note: 2026 resources use 9476; older notes may still reference 9729.
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