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Chemistry A · OCR H432 · Periodic table, elements and physical chemistry · June 2024

OCR A Level Chemistry A Periodic table, elements and physical chemistry June 2024 examiner report (H432/01)

2h 15m 100 marks

Examiner report

  1. Q1 - 1 mark - Sub-shells, orbitals and electron configuration
  2. Q2 - 1 mark - Intermolecular forces
  3. Q3 - 1 mark - Percentage yield
  4. Q4 - 1 mark - Group 2: the alkaline earth metals
  5. Q5 - 1 mark - Group 7: the halogens
  6. Q6 - 1 mark - Group 7: the halogens
  7. Q7 - 1 mark - Amounts of substance in equations, Enthalpy changes
  8. Q8 - 1 mark - Maxwell-Boltzmann distribution
  9. Q9 - 1 mark - The Arrhenius equation
  10. Q10 - 1 mark - Determining orders of reaction
  11. Q11 - 1 mark
  12. Q12 - 1 mark - pH calculations
  13. Q13 - 1 mark - Identification of ions
  14. Q14 - 1 mark - Group 7: the halogens
  15. Q15 - 1 mark - Variable oxidation states of transition metals
  16. Q16 - 17 marks - Born-Haber cycles and lattice enthalpy, Entropy and Gibbs free energy, Hess's law, Oxidation states
  17. Q17 - 7 marks - Determining orders of reaction, Rate equations and orders of reaction
  18. Q18 - 12 marks - Electronegativity and bond polarity, Equilibrium constant Kp, Shapes of molecules and ions, The effect of changing conditions on equilibrium
  19. Q19 - 11 marks - pH calculations, Titrations, Weak acids and Ka
  20. Q20 - 11 marks - Group 7: the halogens, Rate-determining step and mechanisms
  21. Q21 - 15 marks - Electrode potentials and electrochemical cells, Fuel cells, Group 2: the alkaline earth metals, Reactions of acids, Redox titrations
  22. Q22 - 12 marks - Ligand substitution reactions, pH calculations, Sub-shells, orbitals and electron configuration, Transition metals