Chemistry 9701/22 Oct Nov 2011 | Cambridge AS Level Past Papers With Mark Scheme

1. Hydrolysis reactions of magnesium chloride, aluminum chloride, and silicon tetrachloride with water, producing hydroxides, oxides, and precipitation observations.
2. Chloride ion quantification in meat products using silver nitrate titration, mole calculations, and ionic equation formulation for sodium and potassium chlorides.
3. Iodination of benzene, enthalpy calculations for iodine formation, and oxidation state changes of nitrogen and iodine in nitric acid reactions.
4. Nitrogen oxide homogenous catalysis in acid rain formation, explaining reaction mechanisms and environmental impact.
5. Electronic structure of Cu²⁺, orbital splitting in transition metal complexes, and ammonia's effect on copper solutions, with color change explanations.
6. Curcumin structure and reactions with bromine and KMnO₄, focusing on functional group analysis and product identification.