Chemistry 9701/02 Oct Nov 2004 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis of magnesium chloride, aluminum chloride, and silicon tetrachloride, forming hydroxides and oxides.
2. Chloride ion titration in meat products, with mole calculations and ionic equations for sodium and potassium chlorides.
3. Iodination of benzene, enthalpy change for iodine formation, and oxidation state changes in iodine and nitrogen.
4. Nitrogen oxide catalysis in acid rain formation, with chemical equations explaining the role in environmental processes.
5. Cu²⁺ electronic configuration, 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.