Edexcel IGCSE Chemistry Chemistry Paper 2 June 2023 examiner report (4CH1/2CR)
Examiner report
- Q1 - 6 marks - Electronic structure, Group 0: the noble gases, Subatomic particles, The periodic table
- Q2 - 7 marks - Alkenes, Group 7: the halogens
- Q3 - 6 marks - Alloys as useful materials, Extraction of metals and reduction, Oxidation and reduction in terms of electrons
- Q4 - 9 marks - Cracking and alkenes, Fractional distillation and petrochemicals
- Q5 - 13 marks - Making soluble salts, Oxidation and reduction in terms of electrons, Percentage yield, Properties of ionic compounds
- Q6 - 15 marks - Concentration of solutions, Group 1: the alkali metals, Metallic bonding, Tests for gases, Volumes of gases
- Q7 - 14 marks - Bond energy calculations, Carboxylic acids, Dynamic equilibrium, Esters, The effect of changing conditions on equilibrium
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