Chemistry 9701/02 Oct Nov 2005 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis of magnesium chloride, aluminum chloride, and silicon tetrachloride, producing 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 oxides catalyzing acid rain formation, with chemical reactions and explanations.
5. Cu²⁺ electronic configuration, d-orbital splitting in transition metal complexes, and ammonia's effect on copper complex colors.
6. Curcumin structure, functional group analysis, and reactions with bromine and KMnO₄ for identifying products.