What are intermolecular forces and van der Waals forces? Which forces are not included in them? Explain their types and uses.

(N/A) Intermolecular forces are the forces of attraction and repulsion between interacting particles.
These forces do not include electrostatic forces between oppositely charged ions (ion-ion interactions) and the forces that hold atoms together within a molecule (covalent bonds).
Van der Waals forces are attractive intermolecular forces named after the Dutch scientist Johannes van der Waals $(1837-1923)$,who used them to explain the deviation of real gases from ideal behavior.
The following forces are not considered van der Waals forces:
$(i)$ Ion-dipole forces (attraction between an ion and a dipole).
$(ii)$ Intramolecular forces (covalent bonds).
Types of van der Waals forces:
$(i)$ Dispersion forces or London forces: Arise due to temporary dipoles in non-polar molecules.
$(ii)$ Dipole-dipole forces: Exist between molecules with permanent dipoles.
$(iii)$ Dipole-induced dipole forces: Exist between a polar molecule and a non-polar molecule.
Uses: These forces are fundamental in explaining the physical states of matter,the deviation of real gases from the ideal gas law,and the properties of liquids and solids.