Chemistry 9701/33 Oct Nov 2011 | Cambridge AS Level Past Papers With Mark Scheme

1. Reactions of magnesium chloride, aluminum chloride, and silicon tetrachloride with water, producing 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 calculations for iodine, and oxidation state changes of iodine and nitrogen.
4. Nitrogen oxide catalysis in acid rain formation, explaining their chemical role in the process.
5. Copper complex formation, Cu²⁺ electronic configuration, orbital splitting, and color changes due to ammonia.
6. Curcumin's structure, functional groups, reactions with bromine and KMnO₄, and product identification.