IB Chemistry 2.2.9 IMF strength and properties Questions
IB Chemistry 2.2.9 IMF strength and properties Questions
Focus on how intermolecular forces control boiling point, melting point, volatility and solubility, using named substances and the exact reason IB mark schemes reward.
How this is tested
- compare boiling points of isomers and homologues: longer chains raise bp, branching lowers it
- a melting point of 296.9 K suggests a simple molecular oxide with weak intermolecular forces
- explain why CH3OH is volatile yet water-soluble by balancing H bonding against small size