Chemistry 9701/04 Oct Nov 2007 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis reactions of magnesium chloride, aluminum chloride, and silicon tetrachloride, forming hydroxides and oxides.
2. Chloride ion titration 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 oxides catalyzing acid rain formation, with reaction mechanisms and equations.
5. Cu²⁺ electronic configuration, orbital splitting, and ammonia’s impact on copper solution color.
6. Curcumin structure, functional groups, and reactions with bromine and KMnO₄ for product identification.