OCR AS Level Chemistry B (Salters) - H033 过往试题分析

June 2025 AS Chemistry B (Salters) H033: two 70-mark, 90-minute papers (Foundations of chemistry; Chemistry in depth). Heavy on quantitative work (amount of substance, energetics, equilibrium constants) and practical skills (about 17 marks), with a balanced mix of organic, inorganic and physical chemistry. Two 6-mark level-of-response questions carry the highest-tariff reasoning.

The June 2024 OCR AS Chemistry B (Salters) suite represents a balanced but demanding assessment, testing core foundations in Paper 1 and challenging conceptual/analytical depth in Paper 2. Key differentiators included multi-step stoichiometry, spectroscopy interpretation, and rigorous physical chemistry applications.

The June 2023 Salters Chemistry B papers (H033/01 and H033/02) present a balanced yet rigorous assessment. The examination is characterized by heavy practical and stoichiometric requirements, containing multi-step calculations like the Group 2 titration LOR, the cyanogen combustion analysis, and several organic synthesis/spectroscopy questions. A solid grasp of experimental design and clear structural explanations for intermolecular forces are key differentiators for high-achieving candidates.

The June 2022 Salters Chemistry B papers (H033/01 & H033/02) present a balanced assessment of foundations and in-depth chemistry. Students require strong skills in quantitative conversions, organic reaction mechanisms, and practical chemistry techniques.