The nature of intermolecular forces in $C_6H_6$ (benzene) is......

What is the dependence of interaction energy on the distance $(r)$ between molecules for the following forces?
$(i)$ London forces
$(ii)$ Dipole-dipole forces (stationary)
$(iii)$ Dipole-induced dipole forces

The attractive interactions between cations and mobile electrons in metallic solid is called

Solid $PCl_5$ exists as $:$

In which molecule is the van der Waals force likely to be the most important factor in determining the melting point $(m.pt.)$ and boiling point $(b.pt.)$?

Which one of the following substances consists of small discrete molecules?