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Chemistry · Edexcel 4CH1 · Chemistry Paper 1 · June 2023

Edexcel IGCSE Chemistry Chemistry Paper 1 June 2023 examiner report (4CH1/1C)

2h 110 marks

Examiner report

  1. Q1 - 7 marks - Making soluble salts, Mixtures and separation techniques
  2. Q2 - 8 marks - Conservation of mass and balanced equations, Corrosion and its prevention, Oxidation and reduction in terms of electrons, Reactivity of metals, Tests for gases
  3. Q3 - 6 marks - Properties of small molecules
  4. Q4 - 14 marks - Addition polymerisation, Alkenes, Covalent bonding, Empirical formulae, Organic chemistry
  5. Q5 - 11 marks - Group 1: the alkali metals, Identification of ions, Ionic bonding and ionic compounds, The pH scale and neutralisation
  6. Q6 - 12 marks - Conservation of mass and balanced equations, Ionic bonding and ionic compounds, Making soluble salts, Relative formula mass
  7. Q7 - 14 marks - Amounts of substance in equations, Group 7: the halogens, Isotopes and relative atomic mass, Subatomic particles
  8. Q8 - 13 marks - Calorimetry, Conservation of mass and balanced equations, Enthalpy changes, Properties of hydrocarbons
  9. Q9 - 13 marks - Atoms, elements and compounds, Empirical formulae, Mixtures and separation techniques, Moles and amount of substance, Pure substances
  10. Q10 - 12 marks - Catalysts, Collision theory and activation energy, Moles and amount of substance