OCR A Level Chemistry A Unified chemistry June 2025 examiner report (H432/03)
Examiner report
- Q1 - 8 marks - Mass spectrometry, NMR spectroscopy
- Q2 - 14 marks - Amounts of substance in equations, Moles and amount of substance, Naming organic compounds, pH calculations, Phenols
- Q3 - 11 marks - Determining orders of reaction, Equilibrium constant Kc, Rate equations and orders of reaction, Rate-determining step and mechanisms, The effect of changing conditions on equilibrium
- Q4 - 15 marks - Identification of ions, Moles and amount of substance, Oxidation states, Redox equations, Shapes of complex ions
- Q5 - 16 marks - Amounts of substance in equations, Benzene and aromatic chemistry, Covalent bonding, Electrode potentials and electrochemical cells, Fuel cells, Nucleophilic addition, Nucleophilic substitution, Percentage yield
- Q6 - 6 marks - Amounts of substance in equations, Calorimetry, Hess's law
Your browser can't show this paper here.
Open the PDF