Chemistry 9701/31 Oct Nov 2011 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis of magnesium chloride, aluminum chloride, and silicon tetrachloride with water, forming hydroxides and oxides.
2. Chloride ion titration in meat products using silver nitrate, including mole calculations and ionic equations.
3. Iodination of benzene, enthalpy calculation for iodine, and oxidation state changes in iodine and nitrogen.
4. Nitrogen oxide catalysis in acid rain, including equations and catalytic processes.
5. Copper ion complex formation, Cu²⁺ configuration, orbital splitting, and ammonia interaction.
6. Curcumin structure, functional group reactions with bromine and KMnO₄, and product identification.