Edexcel IGCSE Chemistry Chemistry Paper 1 June 2023 examiner report (4CH1/1CR)
Examiner report
- Q1 - 6 marks - Oxidation and reduction in terms of electrons, The pH scale and neutralisation, The three states of matter
- Q2 - 8 marks - Atoms, elements and compounds, Chromatography, Empirical formulae, Mixtures and separation techniques
- Q3 - 8 marks - Ionic bonding and ionic compounds, Isotopes and relative atomic mass, Subatomic particles, The periodic table
- Q4 - 8 marks - The composition and evolution of the atmosphere
- Q5 - 12 marks - Corrosion and its prevention, Oxidation and reduction in terms of electrons, Reactivity of metals
- Q6 - 10 marks - Catalysts, Collision theory and activation energy
- Q7 - 11 marks - Alkenes, Amounts of substance in equations, Moles and amount of substance, Properties of hydrocarbons, Pure substances, Tests for gases
- Q8 - 5 marks - Diamond, graphite, graphene and fullerenes
- Q9 - 13 marks - Conservation of mass and balanced equations, Identification of ions, Ionic bonding and ionic compounds, Properties of ionic compounds
- Q10 - 15 marks - Addition polymerisation, Covalent bonding, Cracking and alkenes, Empirical formulae, Properties of small molecules
- Q11 - 14 marks - Calorimetry, Enthalpy changes, Exothermic and endothermic reactions, Moles and amount of substance
Your browser can't show this paper here.
Open the PDF