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Combined Science A (Gateway) · OCR J250 · Chemistry Paper 9 · Higher · June 2022

OCR GCSE Combined Science A (Gateway) Chemistry Paper 9 Higher June 2022 examiner report (J250/09)

1h 10m 60 marks

Examiner report

  1. Q1 - 1 mark - Empirical formulae
  2. Q2 - 1 mark - Oxidation and reduction in terms of electrons
  3. Q3 - 1 mark - Subatomic particles
  4. Q4 - 1 mark - Formulations
  5. Q5 - 1 mark - Chromatography
  6. Q6 - 1 mark - Strong and weak acids
  7. Q7 - 1 mark - Conservation of mass and balanced equations
  8. Q8 - 1 mark - Bond energy calculations
  9. Q9 - 1 mark - The pH scale and neutralisation
  10. Q10 - 1 mark - Moles and amount of substance
  11. Q11 - 12 marks - Chemical bonds, Diamond, graphite, graphene and fullerenes, Subatomic particles
  12. Q12 - 10 marks - Chemical bonds, Electrolysis, Electronic structure, Oxidation and reduction in terms of electrons
  13. Q13 - 6 marks - Bonding, structure and the properties of matter, The three states of matter
  14. Q14 - 18 marks - Bonding, structure and the properties of matter, Chemical bonds, Concentration of solutions, Conservation of mass and balanced equations, Electronic structure, Moles and amount of substance, Tests for gases, The pH scale and neutralisation, The three states of matter
  15. Q15 - 4 marks - Conservation of mass and balanced equations, Oxidation and reduction in terms of electrons