Pearson Edexcel A-Level Chemistry Past Papers & Mark Schemes

This comprehensive archive of 303 Pearson Edexcel A-Level Chemistry resources spans both the current linear specification and the legacy modular specification (units 6CH01-6CH08), making it one of the largest chemistry paper collections available. The breadth of papers provides extensive practice across inorganic, organic, and physical chemistry. The current specification is assessed through three papers. Paper 1: Advanced Inorganic and Physical Chemistry (1 hour 45 minutes, 80 marks, 33%) covers atomic structure, bonding, energetics (enthalpy, lattice enthalpy, Born-Haber cycles), kinetics (rate equations, Arrhenius equation), chemical equilibria, and the chemistry of Groups 1, 2, and 7 alongside transition metal chemistry. Paper 2: Advanced Organic and Physical Chemistry (1 hour 45 minutes, 80 marks, 33%) covers organic chemistry from hydrocarbons through to carboxylic acids, amines, amino acids, and polymers — including reaction mechanisms (nucleophilic substitution, electrophilic addition, carbonyl chemistry) — alongside thermodynamics, electrode potentials, and acid-base chemistry (pH calculations, buffers, titration curves). Paper 3: General and Practical Principles in Chemistry (2 hours 30 minutes, 120 marks, 33%) is the synoptic paper, drawing on all topics and explicitly assessing practical chemistry skills including apparatus selection, experimental design, data analysis, and evaluation of results from the 16 core practicals. The legacy modular papers (Units 1-6, plus alternative Unit 3B and 6B) follow a different structure but cover the same fundamental chemistry. They remain valuable for targeted topic practice, particularly the quantitative calculation questions that appear in every chemistry specification.