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Combined Science A (Gateway) · OCR J250 · Chemistry Paper 3 · Foundation · June 2024

OCR GCSE Combined Science A (Gateway) Chemistry Paper 3 Foundation June 2024 examiner report (J250/03)

1h 10m 60 marks

Examiner report

  1. Q1 - 1 mark - The three states of matter
  2. Q2 - 1 mark - Oxidation and reduction in terms of electrons
  3. Q3 - 1 mark - Tests for gases
  4. Q4 - 1 mark
  5. Q5 - 1 mark - The pH scale and neutralisation
  6. Q6 - 1 mark
  7. Q7 - 1 mark - Formulations
  8. Q8 - 1 mark - Reactions of acids
  9. Q9 - 1 mark - The three states of matter
  10. Q10 - 1 mark - Metals and non-metals
  11. Q11 - 8 marks - Subatomic particles, The development of the model of the atom, The periodic table
  12. Q12 - 7 marks - Diamond, graphite, graphene and fullerenes, Subatomic particles
  13. Q13 - 7 marks - Mixtures and separation techniques, Pure substances, The three states of matter
  14. Q14 - 6 marks - Chromatography
  15. Q15 - 6 marks - Bonding, structure and the properties of matter
  16. Q16 - 4 marks - Relative formula mass
  17. Q17 - 12 marks - Chemical bonds, Conservation of mass and balanced equations, Electronic structure, Metals and non-metals, Subatomic particles

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