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Chemistry · Edexcel 4CH1 · Chemistry Paper 1 · regional · January 2020

Edexcel IGCSE Chemistry Chemistry Paper 1 January 2020 examiner report (4CH1/1CR)

2h 110 marks

Examiner report

  1. Q1 - 6 marks - Ionic bonding and ionic compounds, Isotopes and relative atomic mass, Subatomic particles, The periodic table
  2. Q2 - 7 marks - Conservation of mass and balanced equations, The three states of matter
  3. Q3 - 9 marks - Alkenes, Conservation of mass and balanced equations, Group 7: the halogens, Ionic bonding and ionic compounds, The periodic table
  4. Q4 - 9 marks - Identification of ions, Ionic bonding and ionic compounds, Reversible reactions, The three states of matter
  5. Q5 - 5 marks - The composition and evolution of the atmosphere
  6. Q6 - 12 marks - Calorimetry, Conservation of mass and balanced equations, Enthalpy changes, Oxidation and reduction in terms of electrons, Reactivity of metals
  7. Q7 - 9 marks - Calorimetry, Exothermic and endothermic reactions, The pH scale and neutralisation
  8. Q8 - 14 marks - Identification of ions, Ionic bonding and ionic compounds, Properties of ionic compounds
  9. Q9 - 13 marks - Addition polymerisation, Conservation of mass and balanced equations, Organic chemistry
  10. Q10 - 11 marks - Covalent bonding, Diamond, graphite, graphene and fullerenes, Giant covalent structures, Properties of small molecules
  11. Q11 - 15 marks - Amounts of substance in equations, Atmospheric pollutants, Conservation of mass and balanced equations, Empirical formulae, Moles and amount of substance, Oxidation and reduction in terms of electrons