Edexcel GCSE Chemistry Paper 1 Higher June 2025 examiner report (1CH0/1H)
Examiner report
- Q1 - 6 marks - Chemical cells and batteries, Covalent bonding, Electrolysis, Fuel cells, Reactivity of metals
- Q2 - 9 marks - Isotopes and relative atomic mass, Subatomic particles
- Q3 - 9 marks - Electrolysis, Making soluble salts, Metallic bonding, Mixtures and separation techniques, Properties of metals and alloys
- Q4 - 11 marks - Atom economy, Percentage yield, The pH scale and neutralisation
- Q5 - 9 marks - Electronic structure, Mixtures and separation techniques, Properties of small molecules, The three states of matter
- Q6 - 9 marks - Amounts of substance in equations, Extraction of metals and reduction, Tests for gases
- Q7 - 12 marks - Alloys as useful materials, Corrosion and its prevention
- Q8 - 13 marks - Electrolysis of aqueous solutions, Moles and amount of substance, Relative formula mass
- Q9 - 11 marks - Dynamic equilibrium, The effect of changing conditions on equilibrium, The Haber process
- Q10 - 11 marks - Concentration of solutions, Titrations
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