Chemistry 9701/12 Oct Nov 2010 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis of magnesium chloride, aluminum chloride, and silicon tetrachloride, forming hydroxides, oxides, and observing solubility changes.
2. Titration of chloride ions in meat products with silver nitrate, mole calculations, and ionic equations for sodium and potassium chlorides.
3. Iodination of benzene, enthalpy change calculations for iodine, and oxidation state changes in iodine and nitrogen.
4. Nitrogen oxides as catalysts in acid rain formation, explained through reaction mechanisms.
5. Transition metal complex formation, Cu²⁺ electronic configuration, and ammonia's effect on color.
6. Curcumin structure, functional groups, and reactions with bromine and KMnO₄ for product identification.