Chemistry 9701,34 Oct Nov 2024 | Cambridge AS - A Level Past Papers With Mark Scheme

1. Iodine Clock Reaction & Reaction Rate Determination | Titration of Iodine with Sodium Thiosulfate – Measuring iodine concentration, calculating reaction rate, and optimizing titration accuracy.

2. Thermal Decomposition & Hydrated Salts | Determining Water of Crystallization – Heating a hydrated salt to remove water, calculating mass loss, and determining empirical formula.

3. Qualitative Analysis & Ion Identification | Halide & Metal Ion Detection – Using precipitation and solubility tests to identify anions and cations in an unknown salt.

4. Oxidation-Reduction Reactions | Decomposition of Potassium Manganate(VII) – Heating KMnO₄, observing decomposition products, and testing for manganese species.

5. Complex Ion Formation & Ligand Exchange | Transition Metal Precipitation Reactions – Identifying coordination complexes through color changes and solubility variations.

6. Gas Testing & Identification | Carbon Dioxide, Ammonia, and Oxygen Detection – Conducting simple gas tests and confirming results with qualitative indicators.