All papers

Chemistry A · OCR H432 · Synthesis and analytical techniques · November 2020

OCR A Level Chemistry A Synthesis and analytical techniques November 2020 examiner report (H432/02)

2h 15m 100 marks

Examiner report

  1. Q1 - 1 mark - E-Z isomerism, Naming organic compounds
  2. Q2 - 1 mark - Alkenes
  3. Q3 - 1 mark - Esters, Organic synthesis routes
  4. Q4 - 1 mark - Oxidation of alcohols
  5. Q5 - 1 mark - Addition polymerisation
  6. Q6 - 1 mark - E-Z isomerism, Elimination reactions
  7. Q7 - 1 mark - Carboxylic acids, Phenols
  8. Q8 - 1 mark - NMR spectroscopy
  9. Q9 - 1 mark - Naming organic compounds
  10. Q10 - 1 mark - Isomerism, Naming organic compounds
  11. Q11 - 1 mark - Empirical formulae
  12. Q12 - 1 mark - Moles and amount of substance, Naming organic compounds
  13. Q13 - 1 mark - Thin-layer, column and gas chromatography
  14. Q14 - 1 mark - Carbon–carbon bond formation, Esters, Halogenoalkanes
  15. Q15 - 1 mark - Electrophilic substitution
  16. Q16 - 9 marks - Free-radical substitution, Naming organic compounds, Optical isomerism
  17. Q17 - 20 marks - Acylation and nucleophilic addition-elimination, Alkenes, Amines, Atoms, elements and compounds, Electrophilic addition, Electrophilic substitution, NMR spectroscopy
  18. Q18 - 11 marks - Acylation and nucleophilic addition-elimination, Carboxylic acids, Condensation polymerisation, Oxidation of alcohols
  19. Q19 - 14 marks - Naming organic compounds, Nucleophilic addition, Organic reaction mechanisms, Tests for organic functional groups
  20. Q20 - 8 marks - Infrared spectroscopy, Organic synthesis routes, Percentage yield
  21. Q21 - 15 marks - Amines, Amounts of substance in equations, Esters, Halogenoalkanes, Nucleophilic addition, Organic synthesis routes
  22. Q22 - 8 marks - Instrumental methods, NMR spectroscopy