Question

which of the following is an example of an intermolecular force?
pi bond
dipole - dipole force
sigma bond
covalent bond

Explanation:

Intermolecular forces are attractions between molecules, while intramolecular forces (like covalent bonds, sigma/pi bonds) hold atoms within a molecule. Dipole-dipole force is an intermolecular force between polar molecules.

Answer:

B. dipole-dipole force