OCR Gateway GCSE Combined Science past papers
OCR Gateway GCSE Combined Science November 2021 Paper 3
- J250/03
- Foundation
- Chemistry 1
- 1 hour 10 minutes
- 60 marks
Question paper, Mark scheme: on the OCR website.
Practise this paper's topics
5 new exam questions, 28 minutes, marked as you go. Free, no account.
- Exothermic and endothermic reactions, reaction profiles
- Atoms, compounds, mixtures and the atomic model
- Ionic and covalent bonding
- Acids, salts and pH
- Conservation of mass and relative formula mass
What it tested
- Bonding and structure18 marks
- Atomic structure and the periodic table12 marks
- Energy changes12 marks
- Chemical changes10 marks
- Quantitative chemistry7 marks
- Chemical analysis1 marks
- Q1The periodic table, metals and noble gases1 mark
- Q2Metallic bonding1 mark
- Q3Diamond, graphite, graphene and fullerenes1 mark
- Q4Purity, formulations and chromatography1 mark
- Q5Conservation of mass and relative formula mass1 mark
- Q6Electrolysis1 mark
- Q7Conservation of mass and relative formula mass1 mark
- Q8Reactivity, extraction and reduction1 mark
9 more questions
- Q9Atomic size, relative mass and electron structure1 mark
- Q10Ionic and covalent bonding1 mark
- Q11Atoms, compounds, mixtures and the atomic modelPurity, formulations and chromatography4 marks
- Q12Conservation of mass and relative formula massAcids, salts and pH5 marks
- Q13Acids, salts and pH8 marks
- Q14States of matter and properties of substancesPurity, formulations and chromatography6 marks
- Q15Ionic and covalent bonding9 marks
- Q16Atoms, compounds, mixtures and the atomic modelAtomic size, relative mass and electron structure6 marks
- Q17Exothermic and endothermic reactions, reaction profilesIonic and covalent bonding12 marks
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