Chemistry 9701/31 May June 2010 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis of magnesium chloride, aluminum chloride, and silicon tetrachloride with water, producing hydroxides and oxides.
2. Titration of chloride ions in meat products using silver nitrate, calculating moles and writing ionic equations for sodium and potassium chlorides.
3. Iodination of benzene, enthalpy change calculations for iodine formation, and oxidation state changes of iodine and nitrogen.
4. Nitrogen oxides as homogeneous catalysts in acid rain formation, explained through chemical reactions.
5. Copper ion complex formation, Cu²⁺ electronic configuration, d-orbital splitting, and ammonia’s effect on solution color.
6. Curcumin structure, functional groups, and reactions with bromine and KMnO₄ for product identification.