Chemistry 9701/13 Oct Nov 2015 | Cambridge AS Level Past Papers With Mark Scheme

1. Ionisation energies and periodic trends, including relationships with chemical formulae of chlorides.
2. Thermodynamic calculations, bond enthalpy evaluations, and combustion energy analysis in chemical reactions.
3. Molecular structure analysis of SiO₂ and organic compounds, focusing on isomers, skeletal structures, and empirical formulas.
4. Acid-base equilibria, reactivity trends in Group II compounds, and solubility behavior in biological and chemical contexts.
5. Organic reaction mechanisms, including SN1 and SN2 pathways, hydrolysis processes, and identification of reaction products using reagents like Tollens' and potassium dichromate.
6. Redox behavior, decomposition reactions of chlorates, and analysis of oxidation states in Group VII and other elements.