Chemistry 9701/23 May June 2015 | Cambridge AS Level Past Papers With Mark Scheme

1. Noble gas properties, including electronic configuration, ionization energy trends, and isotopic abundance calculations.
2. Calculations involving gas mixtures: molar mass, percentage composition, and distillation principles based on boiling points.
3. Group II element trends: reactions with water, nitrate thermal stability, and decomposition equations.
4. Structural isomer identification for C4H8O compounds, including reactivity with 2,4-DNPH, Fehling’s solution, and bromine water.
5. Reactions of magnesium oxide in industrial and environmental applications, including neutralization and thermal properties.
6. Reaction mechanisms and product identification for organic compounds reacting with bromine and oxidizing agents.