Chemistry Past Papers __top__ - Advanced Level

| Year Range | Tier 1 (Recall) | Tier 2 (Application) | Tier 3 (Evaluation/Synthesis) | | :--- | :--- | :--- | :--- | | 2010–2014 | 45% | 40% | 15% | | 2015–2019 | 35% | 45% | 20% | | 2020–2023 | 25% | 50% | 25% |