OCR Gateway GCSE Chemistry past papers
OCR Gateway GCSE Chemistry November 2020 Paper 3
- J248/03
- Higher
- Topics C1 to C3
- 1 hour 45 minutes
- 90 marks
Question paper, Mark scheme, Examiner report: on the OCR website.
Practise this paper's topics
5 new exam questions, 32 minutes, marked as you go. Free, no account.
- Acids, salts and pH
- Conservation of mass and relative formula mass
- The periodic table, metals and noble gases
- Electrolysis
- Higher: bond energy calculations
What it tested
- Chemical changes31 marks
- Atomic structure and the periodic table18 marks
- Quantitative chemistry14 marks
- Energy changes10 marks
- Bonding and structure9 marks
- Chemical analysis8 marks
- Q1Conservation of mass and relative formula mass1 mark
- Q2Atoms, compounds, mixtures and the atomic model1 mark
- Q3Conservation of mass and relative formula mass1 mark
- Q4The periodic table, metals and noble gases1 mark
- Q5Atoms, compounds, mixtures and the atomic model1 mark
- Q6Atoms, compounds, mixtures and the atomic model1 mark
- Q7Atoms, compounds, mixtures and the atomic model1 mark
- Q8States of matter and properties of substancesIonic and covalent bonding1 mark
15 more questions
- Q9Diamond, graphite, graphene and fullerenes1 mark
- Q10Higher: moles and balancing with moles1 mark
- Q11Reactivity, extraction and reductionHigher: redox, strong and weak acids, electrode half equations1 mark
- Q12Higher: moles and balancing with moles1 mark
- Q13Higher: ionic equations and half equations1 mark
- Q14Atomic size, relative mass and electron structure1 mark
- Q15Acids, salts and pHIonic and covalent bonding1 mark
- Q16Ionic and covalent bondingMetallic bonding7 marks
- Q17The periodic table, metals and noble gasesAtoms, compounds, mixtures and the atomic model11 marks
- Q18Higher: bond energy calculationsExothermic and endothermic reactions, reaction profiles10 marks
- Q19Acids, salts and pHHigher: moles and balancing with moles9 marks
- Q20Purity, formulations and chromatography8 marks
- Q21Acids, salts and pHIonic and covalent bonding9 marks
- Q22Conservation of mass and relative formula massHigher: moles and balancing with moles10 marks
- Q23ElectrolysisHigher: redox, strong and weak acids, electrode half equations11 marks
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