Chemistry 9701/41 Oct Nov 2009 | 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, 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 in acid rain formation, explained through their catalytic role and relevant chemical equations.
5. Cu²⁺ electronic configuration, d-orbital splitting, and ammonia’s impact on transition metal complex color.
6. Curcumin structure, functional groups, and reactions with bromine and KMnO₄ to identify products.