Chemistry 9701/33 Oct Nov 2009 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis of magnesium chloride, aluminum chloride, and silicon tetrachloride, forming hydroxides, oxides, and precipitation.
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 for iodine formation, and oxidation state changes of nitrogen and iodine in nitric acid.
4. Nitrogen oxide catalysis in acid rain formation, explained with reaction mechanisms and chemical processes.
5. Cu²⁺ ion electronic configuration, d-orbital splitting, and ammonia’s effect on copper solution color.
6. Curcumin structure, functional groups, and reactions with bromine and KMnO₄ to identify products.