OCR Gateway GCSE Combined Science past papers
OCR Gateway GCSE Combined Science June 2025 Paper 9
- J250/09
- Higher
- Chemistry 1
- 1 hour 10 minutes
- 60 marks
Question paper, Mark scheme, Examiner report: on the OCR website.
Practise this paper's topics
5 new exam questions, 30 minutes, marked as you go. Free, no account.
- Higher: moles and balancing with moles
- Acids, salts and pH
- Ionic and covalent bonding
- Atoms, compounds, mixtures and the atomic model
- Exothermic and endothermic reactions, reaction profiles
What it tested
- Quantitative chemistry15 marks
- Bonding and structure14 marks
- Chemical changes13 marks
- Atomic structure and the periodic table10 marks
- Energy changes6 marks
- Chemical analysis2 marks
- Q1Purity, formulations and chromatography1 mark
- Q2Atoms, compounds, mixtures and the atomic model1 mark
- Q3Diamond, graphite, graphene and fullerenes1 mark
- Q4Conservation of mass and relative formula mass1 mark
- Q5The periodic table, metals and noble gases1 mark
- Q6Ionic and covalent bonding1 mark
- Q7Purity, formulations and chromatography1 mark
- Q8Higher: redox, strong and weak acids, electrode half equations1 mark
7 more questions
- Q9Higher: limits of the particle model1 mark
- Q10Concentration of solutions1 mark
- Q11Acids, salts and pHHigher: limiting reactants12 marks
- Q12Atoms, compounds, mixtures and the atomic modelConservation of mass and relative formula mass8 marks
- Q13Exothermic and endothermic reactions, reaction profiles6 marks
- Q14Ionic and covalent bondingHigher: bond energy calculations11 marks
- Q15Higher: moles and balancing with molesElectrolysis13 marks
June 2025 Higher grade boundaries
Marks needed across all six Higher papers, out of 360.
- 9-9280
- 9-8266
- 8-8252
- 8-7239
- 7-7226
- 7-6209
- 6-6192
- 6-5175
- 5-5158
- 5-4142
- 4-4126
- 4-3118
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