Chemistry 9701/01 May June 2006 | Cambridge AS Level Past Papers With Mark Scheme

1. Reactions and Properties of Gases: Understanding the dissociation of dinitrogen tetroxide (N2O4), bond energy calculations, and the interpretation of mass spectrometry data to understand the behavior of chlorine and thallium isotopes.
2. Chemical Reactions and Bonding: Examining the bonding in Gallium Nitride (GaN), reaction mechanisms involving halogens, and the oxidation states in various elements such as hydrazine, ammonia, and the halogens.
3. Gas Laws and Reactions: Using the ideal gas equation and bond energy data to calculate reaction enthalpies, including the enthalpy of combustion for ethyne and the production of ethene.
4. Organic Chemistry: Identifying functional groups in organic compounds, determining the stereochemistry of compounds, and understanding substitution and electrophilic addition mechanisms in organic reactions.
5. Environmental Chemistry: Assessing pollutants, such as sulfur dioxide, and their effects on the environment, and evaluating methods to prevent emissions and minimize ozone depletion.
6. Stereoisomerism and Isomers: Analyzing compounds that exhibit cis-trans isomerism, the effect of substituents on molecular structures, and the differences in the reactivity of aldehydes and ketones.