Chemistry 9701/02 May June 2004 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis of magnesium chloride, aluminum chloride, and silicon tetrachloride, forming hydroxides and oxides.
2. Titration of chloride ions in meat products, 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 in iodine and nitrogen.
4. Nitrogen oxide catalysis in acid rain formation, explained with chemical reactions and mechanisms.
5. Transition metal chemistry: Cu²⁺ electronic configuration, d-orbital splitting in complexes, and ammonia's effect on color changes.
6. Curcumin structure and functional groups, reactions with bromine and KMnO₄ to identify products.