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Chemistry · AQA 7405 · Paper 1 · November 2020

AQA A Level Chemistry Paper 1 November 2020 examiner report (7405/1)

2h 105 marks

Materials
Data booklet

Examiner report

  1. Q1 - 10 marks - Born-Haber cycles and lattice enthalpy
  2. Q2 - 15 marks - Isotopes and relative atomic mass, Moles and amount of substance
  3. Q3 - 7 marks - Electronegativity and bond polarity, Period 3 elements and their oxides, Periodicity and Period 3 trends, Sub-shells, orbitals and electron configuration
  4. Q4 - 12 marks - Buffer solutions, Moles and amount of substance, Weak acids and Ka
  5. Q5 - 10 marks - Ligand substitution reactions, Metal-aqua ions in solution
  6. Q6 - 11 marks - Equilibrium constant Kp, The effect of changing conditions on equilibrium
  7. Q7 - 6 marks - Electronegativity and bond polarity, Intermolecular forces, Shapes of molecules and ions
  8. Q8 - 8 marks - Variable oxidation states of transition metals
  9. Q9 - 9 marks - Group 7: the halogens
  10. Q10 - 11 marks - Entropy and Gibbs free energy, Hess's law
  11. Q11 - 6 marks - Chemical cells and batteries, Electrode potentials and electrochemical cells, Oxidation states