Question

Which of the following exhibit only London (dispersion) forces? H2O Cl2

Answer 1

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  is the weakest intermolecular force. The London dispersion force is a temporary attractive force. Hope this answers the question.

Answer 2

Answer:

Cl₂ exhibit only London forces

Explanation:

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.

Cl₂ exhibit only London forces.

I hope it helps!