Chemistry 9701/23 May June 2010 | 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 with silver nitrate, involving mole calculations and ionic equations for sodium and potassium chlorides.
3. Iodination of benzene, enthalpy calculations for iodine formation, and oxidation state changes of iodine and nitrogen.
4. Nitrogen oxide catalysis in acid rain formation, with chemical equations for the process.
5. Cu²⁺ electronic configuration, d-orbital splitting in transition metal complexes, and ammonia's impact on copper solution color.
6. Curcumin structure and functional groups, reactions with bromine and KMnO₄, and product identification.