I would say that the correct answer from the choices given above is the former option. It would be H2O that exhibits london dispersion forces. It <span> is the weakest intermolecular </span>force<span>. The </span>London dispersion force <span>is a temporary attractive </span>force. Hope this answers the question.
The London dispersion force is an intermolecular force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. All molecules have london dispersion forces.
Another intermolecular forces are dipole-dipole (Polar molecules with different kind of atoms), hydrogen bonds (Molecules with hydrogen and atoms with high electrongativity) and ion-dipole (Molecules with permanent ions as (alkali metals or halogens and another kind of atom).
Thus:
H₂O exhibit london, hydrogen bond and dipole-dipole forces.
