CCEA A-Level Chemistry 1110 Past Paper 分析

The 2025 CCEA A2 Chemistry examination suite presents a balanced yet rigorous assessment across Physical, Inorganic, Organic, and Practical Chemistry. Unit A2 1 places heavy emphasis on multistep acid-base equilibria calculations, free energy feasibility, and organic mechanisms. Unit A2 2 rigorously interrogates transition metal complex chemistry, electrode potential conventions, amine syntheses, and combined spectroscopic structural determination. Units A2 3A and 3B comprehensively evaluate qualitative inorganic/organic test-tube observations, organic synthesis preparations (recrystallisation and melting point determination), and complex quantitative back-titration analysis.

The CCEA GCE Chemistry A2 examination series comprises four complementary assessment components: Unit A2 1 (Further Physical and Organic Chemistry, 110 marks), Unit A2 2 (Analytical, Transition Metals, Electrochemistry and Further Organic Chemistry, 110 marks), and Unit A2 3 Practical Booklets A & B (90 marks combined). The examination provides rigorous coverage across organic reaction mechanisms, multi-step synthesis, high-precision thermodynamic and quantitative calculations, advanced analytical spectra (¹H NMR and MS), coordination chemistry, and core laboratory techniques.

The 2023 CCEA A2 Chemistry examination series encompasses A2 1 (Further Physical and Organic Chemistry), A2 2 (Analytical, Transition Metals, Electrochemistry and Organic Nitrogen Chemistry), and A2 3 (Practical Booklets A & B). The papers provide rigorous coverage of core A2 quantitative physical chemistry (thermodynamics, Born-Haber cycles, multistep buffer and back-titration calculations), multi-step synthetic pathways, reaction mechanisms, spectroscopic identification, and detailed laboratory methods evaluated via extended 6-mark QWC responses.

The CCEA A2 3 Practical Booklet A (ACH31, 2022) is a 30-mark laboratory examination lasting 75 minutes. The assessment is divided into three hands-on tasks: detailed qualitative analysis and redox chemistry of iron(II) and iron(III) ions alongside phenol testing (18 marks), a standard quantitative titration preparation and recording exercise based on back titration of an antacid (8 marks), and transition metal redox observation of vanadium species (4 marks).