Chemistry 9701/41 May June 2011 | Cambridge AS Level Past Papers With Mark Scheme

1. Reactions of magnesium chloride, aluminum chloride, and silicon tetrachloride with water, forming hydroxides, oxides, and solubility behavior.
2. Titration of chloride ions in meat products using silver nitrate, with mole calculations and ionic equations for sodium and potassium chlorides.
3. Iodination of benzene, enthalpy change calculation for iodine formation, and oxidation state changes of nitrogen and iodine in nitric acid.
4. Nitrogen oxide catalysis in acid rain formation, with explanations and relevant chemical equations.
5. Cu²⁺ ion configuration, d-orbital splitting in transition metal complexes, and the effect of ammonia on color changes.
6. Curcumin structure and functional groups, reactions with bromine and KMnO₄ for product identification.