Van der Waals forces are the only attractive forces present in nonpolar compounds.

Van der Waals forces are the only attractive forces present in nonpolar compounds. Correct Answer True

They are weak interactions caused by momentary changes in electron density in a molecule. Thus they are the only force between non-polar molecules. Such as CH4 has no net dipole, at any one instant its electron density may not be completely symmetrical, resulting in a temporary dipole. This can induce a temporary dipole in another molecule. The weak interaction of these temporary dipoles constituents’ van der Waals forces.