Question

1. how can boiling point be used to predict the strength of intermolecular forces?

the weaker the forces between molecules, the higher the boiling point
the stronger the forces between molecules, the lower the boiling point
the stronger the forces between molecules, the higher the boiling point
boiling point does not indicate the strength of intermolecular forces

Explanation:

Intermolecular forces are the forces of attraction between molecules. When these forces are stronger, more energy (in the form of heat) is required to break these attractions and convert the liquid into a gas (boiling). So, a higher boiling point indicates stronger intermolecular forces.

Answer:

The stronger the forces between molecules, the higher the boiling point