OCR A Level Chemistry A Unified chemistry June 2022 examiner report (H432/03)
Examiner report
- Q1 - 16 marks - Atoms, elements and compounds, Intermolecular forces, Mass spectrometry, NMR spectroscopy, Oxidation states, Properties of ionic compounds, Shapes of complex ions, Shapes of molecules and ions
- Q2 - 13 marks - Amounts of substance in equations, Electrode potentials and electrochemical cells, Group 7: the halogens, Oxidation and reduction in terms of electrons, Redox equations
- Q3 - 10 marks - Organic reaction mechanisms, Organic synthesis routes, Percentage yield
- Q4 - 8 marks - Identification of ions, Maxwell-Boltzmann distribution, The effect of changing conditions on equilibrium
- Q5 - 10 marks - Amounts of substance in equations, Atoms, elements and compounds, Calorimetry, Enthalpy of solution and hydration
- Q6 - 13 marks - Alcohols, Esters, Optical isomerism, Organic reaction mechanisms, pH calculations, Redox titrations, Weak acids and Ka
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