Chemistry 9701/35 May June 2012 | Cambridge AS Level Past Papers With Mark Scheme

1. Reactions of silicon(IV) chloride and phosphorus(V) chloride with water; formation of hydrolysis products and equations.
2. Titration of iron(III) chloride with potassium manganate(VII); moles of \\(\\text{Fe}^{2+}\\) calculation, oxidation-reduction, and copper dissolution.
3. Calculation of bond enthalpy for \\(\\text{Si}_2\\text{Cl}_6\\) formation from \\(\\text{SiCl}_4\\) and \\(\\text{Cl}_2\\).
4. Redox reaction of calcium silicide with water; oxidation and reduction of elements, equation balancing.
5. Standard electrode potential measurement for copper and silver electrochemical cells; Nernst equation for \\([\\text{Ag}^+]\\).
6. Solubility product calculations for \\(\\text{Ag}_2\\text{SO}_4\\); halide ion tests for solubility and color changes.