Can there be both dispersion force and dipole-dipole force present? How is it possible?

Question

Question

Answer 1

Answer #1

Dipole-dipole forces are present in a molecule which is polar.

Dispersion forces are present in all molecules because dispersion force occurs between any molecules having mass and all molecules have mass.

So, if a molecule is polar, it will have both dispersion and dipole-dipole force.

For example SO3 has both these forces

Answer 2

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