Question Detail
Question
If two molecules are of comparable size and shape, which intermolecular force is likely to dominate?
Correct Answer
Option B is the correct answer.
Detailed Explanation
For molecules of comparable size and shape, dipole-dipole interactions will likely be the dominating intermolecular force if the molecules are polar. If one molecule is much larger than another, dispersion forces will likely determine its physical properties due to the increased polarizability.
Hint
When size is similar, permanent dipoles have a greater relative effect.