Chemistry 9701/13 May June 2011 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis reactions of magnesium chloride, aluminum chloride, and silicon tetrachloride with water, resulting in hydroxides and oxides, with observations and equations.
2. Titration of chloride ions in meat products using silver nitrate, mole calculations, and ionic equations for sodium and potassium chlorides.
3. Iodination of benzene, enthalpy change calculations for iodine formation, and oxidation state changes of iodine and nitrogen.
4. Nitrogen oxides as homogeneous catalysts in acid rain formation, with relevant chemical equations.
5. Transition metal ion complex formation, Cu²⁺ electronic configuration, d-orbital splitting, and ammonia’s impact on copper solution color.
6. Curcumin structure, functional group analysis, and reactions with bromine and KMnO₄ to identify products.