OCR GCSE Gateway Science - Chemistry A - J248 过往试题分析
按科目与年份浏览过往试题分析、答案详解、分数线估算及 thinka 原创模拟卷。
可用年份: 2024, 2023, 2022
The June 2024 OCR GCSE Chemistry A (J248) suite represents a balanced and highly structured assessment of foundational and advanced chemical concepts. Higher tier papers J248/03 and J248/04 presented rigorous quantitative stoichiometry, rate curve tangent determinations, and critical descriptive comparative explanations on bonding, while J248/01 and J248/02 provided solid, accessible routes for Foundation candidates testing standard experimental procedures, balancing, and environmental issues.
A comprehensive analysis of the June 2023 OCR Gateway GCSE Chemistry A series, highlighting key areas of student difficulty in calculations, electrolysis, and level-of-response evaluations.
Comprehensive analysis of the June 2022 OCR GCSE (9-1) Chemistry A J248 examination series, focusing on Paper 3 and Paper 4 (Higher Tier). The exam showcased strong emphasis on quantitative chemistry, experimental design (LOBF graphs, titrations), and environmental evaluations (LCAs).