Chemistry 9701/04 Oct Nov 2005 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis of magnesium chloride, aluminum chloride, and silicon tetrachloride, resulting in hydroxides and oxides.
2. Titration of chloride ions in meat products with 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 in iodine and nitrogen.
4. Nitrogen oxide catalysis in acid rain formation, explained with chemical reactions.
5. Cu²⁺ electronic configuration, d-orbital splitting in transition metal complexes, and ammonia’s effect on copper solution color.
6. Curcumin structure, functional groups, and reactions with bromine and KMnO₄ for product identification.