Chemistry 9701/31 Oct Nov 2008 | 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 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, with relevant chemical equations.
5. Cu²⁺ electronic configuration, orbital splitting, and ammonia's effect on copper solution color.
6. Curcumin structure, functional group analysis, and reactions with bromine and KMnO₄.