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Chemistry A · OCR H432 · Synthesis and analytical techniques · June 2025

OCR A Level Chemistry A Synthesis and analytical techniques June 2025 examiner report (H432/02)

2h 15m 100 marks

Examiner report

  1. Q1 - 1 mark - Naming organic compounds
  2. Q2 - 1 mark - Amounts of substance in equations, Electrophilic addition
  3. Q3 - 1 mark - Naming organic compounds
  4. Q4 - 1 mark - Organic synthesis routes, Oxidation of alcohols
  5. Q5 - 1 mark - Amounts of substance in equations, Carboxylic acids, Moles and amount of substance
  6. Q6 - 1 mark - Percentage yield
  7. Q7 - 1 mark - Amines, Condensation polymerisation
  8. Q8 - 1 mark - Electrophilic addition
  9. Q9 - 1 mark - Acylation and nucleophilic addition-elimination
  10. Q10 - 1 mark - E-Z isomerism, Optical isomerism
  11. Q11 - 1 mark - Mass spectrometry
  12. Q12 - 1 mark - Infrared spectroscopy
  13. Q13 - 1 mark - Oxidation of alcohols
  14. Q14 - 1 mark - Tests for organic functional groups
  15. Q15 - 1 mark - NMR spectroscopy
  16. Q16 - 12 marks - Alkenes, E-Z isomerism, Electrophilic addition, Naming organic compounds, Properties of hydrocarbons
  17. Q17 - 6 marks - Halogenoalkanes, Organic synthesis routes, Oxidation of alcohols, Percentage yield
  18. Q18 - 8 marks - Addition polymerisation, Condensation polymerisation, Esters
  19. Q19 - 9 marks - Carbon–carbon bond formation, Halogenoalkanes, Organic synthesis routes
  20. Q20 - 17 marks - Amines, Benzene and aromatic chemistry, Electrophilic substitution, Phenols
  21. Q21 - 17 marks - Acylation and nucleophilic addition-elimination, Carbon–carbon bond formation, Carboxylic acids, Esters, Naming organic compounds, Nucleophilic addition, Tests for organic functional groups
  22. Q22 - 6 marks - Acylation and nucleophilic addition-elimination, Thin-layer, column and gas chromatography
  23. Q23 - 10 marks - Elimination reactions, Infrared spectroscopy, Instrumental methods, NMR spectroscopy