AQA GCSE Chemistry Chemistry Paper 2 (Higher), June 2025
Every question from AQA GCSE Chemistry Chemistry Paper 2 (Higher), June 2025 (8462): 9 questions, 100 marks, each with its mark scheme and topic.
- Question 1 11 marks
Describe and analyze an experimental method to determine the mass and mean concentration of dissolved solids in different sea water samples.
Chemistry · Required Practicals · Required Practicals · C3: Quantitative Chemistry · C10: Using Resources
- Question 2 9 marks
Identify and explain features of fractional distillation of crude oil, deduce fuel properties, identify an alkane from a ball-and-stick model, and balance a hydrocarbon combustion equation.
Chemistry · C7: Organic Chemistry · C3: Quantitative Chemistry · C2: Bonding, Structure and the Properties of Matter
- Question 3 9 marks
Evaluate the use of aluminium and wood for making doors, explain how an oxide coating prevents corrosion, and identify the correct composition of a paint formulation.
Chemistry · C8: Chemical Analysis · C10: Using Resources
- Question 4 9 marks
Explain changes in nitrogen, carbon dioxide, and oxygen percentages in the Earth's atmosphere over geological time, and plot early carbon dioxide data.
Chemistry · C9: Chemistry of the Atmosphere
- Question 5 12 marks
Answer questions on unsaturated hydrocarbons, including estimating boiling points, reactions of alkenes, tests for chlorine, and calculating gas volume from mass.
Chemistry · C3: Quantitative Chemistry · C7: Organic Chemistry · C8: Chemical Analysis
- Question 6 11 marks
Identify ions using precipitation, flame, halide, and carbonate tests, and explain the difference in reaction rate between ethanoic and nitric acids.
Chemistry · Required Practicals · C8: Chemical Analysis · C4: Chemical Changes · C6: The Rate and Extent of Chemical Change · Required Practicals
- Question 7 12 marks
Identify condensation polymers and monomers, complete displayed formulas for glycine and poly(tetrafluoroethene), and describe the structure of thermosetting polymers.
Chemistry · C7: Organic Chemistry · C10: Using Resources
- Question 8 13 marks
Investigate the rate of decomposition of hydrogen peroxide with different catalysts, including reaction profile analysis, tangent calculation of rate at 60 seconds in standard form, and effect of temperature.
Chemistry · C3: Quantitative Chemistry · C5: Energy Changes · C6: The Rate and Extent of Chemical Change
- Question 9 14 marks
Answer questions on the production of hydrogen and ammonia, including equilibrium conditions, catalyst effects, calculation of required air volume, condenser separation in the Haber process, and sustainability.
Chemistry · C6: The Rate and Extent of Chemical Change · C9: Chemistry of the Atmosphere · C10: Using Resources