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Chemistry · AQA 7405 · Paper 1 · June 2023

AQA A Level Chemistry Paper 1 June 2023 examiner report (7405/1)

2h 105 marks

Materials
Data booklet

Examiner report

  1. Q1 - 10 marks - Oxidation states, Shapes of complex ions, Shapes of molecules and ions, Transition metals
  2. Q2 - 5 marks - Electrode potentials and electrochemical cells
  3. Q3 - 6 marks - Period 3 elements and their oxides
  4. Q4 - 11 marks - Equilibrium constant Kp
  5. Q5 - 16 marks - Born-Haber cycles and lattice enthalpy, Enthalpy changes, Sub-shells, orbitals and electron configuration
  6. Q6 - 10 marks - Amounts of substance in equations, Moles and amount of substance
  7. Q7 - 17 marks - Coloured transition metal ions, Ligand substitution reactions, Metal-aqua ions in solution, Moles and amount of substance, Sub-shells, orbitals and electron configuration
  8. Q8 - 5 marks - Chemical cells and batteries, Electrode potentials and electrochemical cells, Oxidation states
  9. Q9 - 12 marks - Isotopes and relative atomic mass, Moles and amount of substance
  10. Q10 - 13 marks - Buffer solutions, pH curves and indicators, Weak acids and Ka