All papers

Chemistry · Edexcel 4CH1 · Chemistry Paper 2 · June 2023

Edexcel IGCSE Chemistry Chemistry Paper 2 June 2023 examiner report (4CH1/2C)

1h 15m 70 marks

Examiner report

  1. Q1 - 7 marks - Electronic structure, Group 0: the noble gases, Ionic bonding and ionic compounds, Metals and non-metals, The periodic table
  2. Q2 - 10 marks - Conservation of mass and balanced equations, Greenhouse gases and climate change, The composition and evolution of the atmosphere, Thermal decomposition
  3. Q3 - 15 marks - Alcohols, Conservation of mass and balanced equations, Empirical formulae, Producing ethanol
  4. Q4 - 11 marks - Concentration of solutions, The pH scale and neutralisation, Titrations
  5. Q5 - 10 marks - Electrolysis, Half equations at electrodes, Identification of ions, Oxidation and reduction in terms of electrons, Tests for gases
  6. Q6 - 6 marks - Bond energy calculations, Esters, Factors affecting the rate of reaction
  7. Q7 - 11 marks - Atmospheric pollutants, Dynamic equilibrium, Moles and amount of substance, The effect of changing conditions on equilibrium, Volumes of gases