Chemistry 9701/41 May June 2014 | Cambridge AS Level Past Papers With Mark Scheme

1. Comparison of melting points and densities between iron and calcium, with explanations rooted in metallic bonding and atomic structure.
2. Construction and interpretation of an electrochemical cell, including electrode identification, calculation of E°cell, and impact of concentration changes on cell potential.
3. Redox titration analysis of an iron(II) complex using KMnO₄, including endpoint recognition, moles of Fe²⁺ calculation, and molar mass determination of the complex.
4. Ligand exchange and coordination chemistry of copper and platinum complexes, examining geometries, electronic structures, and isomerism in square-planar configurations.
5. Enthalpy calculations for decomposition and redox reactions involving copper oxides and nitrates, assessing temperature effects on product favorability.
6. Mechanistic pathways in organic chemistry, including stereochemistry of piperic acid and reaction outcomes with hot acidified KMnO₄.
7. Spectroscopy analysis combining mass spectrometry and NMR data to deduce structural and isotopic characteristics of organic molecules.
8. Applications of functional groups in drug delivery systems, analyzing breakdown reactions in acidic environments and protection mechanisms using liposomes and nanotechnology.