H2 Chemistry Paper 3 Format

Q: What does H2 Chemistry Paper 3 Format cover? A: Break down the 2026 H2 Chemistry Paper 3 demands, from extended data analysis to synthesis essays, and learn how to pace the two-hour, 75-mark exam worth 35 % of your grade.

Exam snapshot Paper 3 | 2 h | 75 marks | 35 % of the overall H2 Chemistry grade

Paper 3 is the long-form arena where SEAB tests synthesis, evaluation, and multi-topic integration. Expect large data sets, open-ended planning, and organic mechanisms that demand careful structuring. Strong answers blend accurate chemistry with clear explanation and tidy presentation.

1 Structure and Timing

• Duration: 120 minutes.
• Questions: All compulsory; specimen paper splits into a data-based Section A and a longer-response Section B.
• Marks: 75 total—roughly half data handling / analysis, half extended free response.
• Calculator & data booklet: Allowed; ensure quick navigation for constants and spectroscopy tables.

Pacing rule of thumb: About 1.6 minutes per mark. Allocate time before writing—e.g., 12-mark data question (~19 minutes), 20-mark synthesis question (~32 minutes). Reserve 5 minutes at the end for a final proof-read.

2 Typical Question Formats