Chemistry 9701/11 Oct Nov 2011 | Cambridge AS Level Past Papers With Mark Scheme

1. Properties of elements and compounds, analysis of molecular properties like boiling and melting points, bonding types, and their impact on behavior (e.g., iodine, silicon, and sodium chloride).
2. Titration experiments for determining chemical quantities, stoichiometry in reactions, and using Hess's law to calculate enthalpy changes, including reactions involving iodine, sodium chloride, and lead compounds.
3. Organic chemistry reactions such as halogenation, esterification, and oxidation, understanding reaction mechanisms like nucleophilic substitution and electrophilic addition.
4. Gaseous behavior, ideal gas law applications, and concentration-based calculations involving gases like oxygen and chlorine.
5. Reactions in atmospheric and environmental chemistry, including sulfur dioxide interactions, catalytic processes, and the impact of pollutants like nitrogen oxides and chlorine.