Which one of the following pairs is an example of polar molecular solids?

Match the type of interaction in Column $I$ with the distance dependence of their interaction energy in Column $II$:

$I$. Ion-ion	$a$. $1/r$
$II$. Dipole-dipole	$b$. $1/r^{2}$
$III$. London dispersion	$c$. $1/r^{3}$
	$d$. $1/r^{6}$

In which types of substances are intermolecular (van der Waals) forces present?

Which of the following has minimum lattice energy $:-$

Dry ice is an example of

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