Edexcel IGCSE Chemistry Chemistry Paper 1 November 2023 examiner report (4CH1/1C)
Examiner report
- Q1 - 7 marks - Conservation of mass and balanced equations, The three states of matter
- Q2 - 10 marks - Electronic structure, Isotopes and relative atomic mass, Subatomic particles, The periodic table
- Q3 - 12 marks - Alkenes, Cracking and alkenes, Fractional distillation and petrochemicals, Properties of small molecules
- Q4 - 11 marks - Atoms, elements and compounds, Conservation of mass and balanced equations, Greenhouse gases and climate change, Group 0: the noble gases, Relative formula mass, The composition and evolution of the atmosphere, Thermal decomposition
- Q5 - 17 marks - Alkenes, Crude oil, hydrocarbons and alkanes, Empirical formulae, Free-radical substitution, Isomerism, Organic chemistry
- Q6 - 12 marks - Catalysts, Collision theory and activation energy, Covalent bonding, Factors affecting the rate of reaction, Tests for gases
- Q7 - 11 marks - Amounts of substance in equations, Identification of ions, The pH scale and neutralisation
- Q8 - 9 marks - Covalent bonding, Diamond, graphite, graphene and fullerenes, Giant covalent structures, Moles and amount of substance
- Q9 - 12 marks - Empirical formulae, Moles and amount of substance, Oxidation and reduction in terms of electrons
- Q10 - 9 marks - Amounts of substance in equations, Making soluble salts, Mixtures and separation techniques, Percentage yield
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