OCR Gateway GCSE Combined Science past papers
OCR Gateway GCSE Combined Science November 2021 Paper 10
- J250/10
- Higher
- Chemistry 2
- 1 hour 10 minutes
- 60 marks
Question paper, Mark scheme: on the OCR website.
Practise this paper's topics
5 new exam questions, 27 minutes, marked as you go. Free, no account.
- Crude oil, alkanes, cracking and alkenes
- Rates of reaction, collisions and catalysts
- Electrolysis
- Group 1 and Group 7
- Higher: phytomining and bioleaching
What it tested
- Rates and equilibrium17 marks
- Organic chemistry14 marks
- Chemical changes13 marks
- Atomic structure and the periodic table7 marks
- Using resources6 marks
- The atmosphere3 marks
- Q1Reactivity, extraction and reduction1 mark
- Q2Greenhouse gases, climate change and carbon footprints1 mark
- Q3Electrolysis1 mark
- Q4Group 1 and Group 7States of matter and properties of substances1 mark
- Q5Atmospheric pollutants1 mark
- Q6The atmosphere, then and now1 mark
- Q7Crude oil, alkanes, cracking and alkenes1 mark
- Q8Crude oil, alkanes, cracking and alkenes1 mark
9 more questions
- Q9Reactivity, extraction and reduction1 mark
- Q10Higher: redox, strong and weak acids, electrode half equationsElectrolysis1 mark
- Q11Rates of reaction, collisions and catalystsHigher: tangents and rates in mol/s8 marks
- Q12Rates of reaction, collisions and catalysts4 marks
- Q13Group 1 and Group 76 marks
- Q14Crude oil, alkanes, cracking and alkenesStates of matter and properties of substances12 marks
- Q15Higher: phytomining and bioleachingReactivity, extraction and reduction6 marks
- Q16ElectrolysisHigher: redox, strong and weak acids, electrode half equations9 marks
- Q17Higher: equilibrium, concentration and temperatureHigher: equilibrium and pressure5 marks
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