Question

Compare and contrast intermolecular forces (London dispersion, dipole-dipole, hydrogen bonding, and ion-dipole).

Answer 1

It may be helpful
http://g.web.umkc.edu/gounevt/Weblec212Silb/L3(12.3-12.4).pdf

Answer 2

Dipole-dipole forces act between molecules possessing permanent dipoles. Ends of dipoles possess partial positive and negative charges which account for electrostatic forces of attraction and hence dipole dipole forces. U can guess that if a molecule is polar then mostly it is bonded by this force.
London forces--- Assume two molecules A and B having no net dipole moment.Both have symmetrical charge distributions. But if by chance the electronic cloud of molecules A becomes asymmetrical and hence induces an instantaneous dipole in A. Now this molecules A induces a dipole in a near by molecules B. As a consequence the both atoms are electrostatically attracted.Two non polar molecules are generally bonded by this force.
Hydrogen bond - This is a special case of dipole dipole interaction. This is found in the molecules highly polar N-H , O-H, and H-F bonds are present. Two molecules associate by hydrogen bonding due to the high electro negative atom N, O and F. Sometimes Chlorine also participates in Hydrogen bonding.

Answer 3

hydrogen bond in the molecules highly polar N-H , O-H, and H-F bonds are present. Two molecules associate by hydrogen bonding due to the high electro negative atom N, O and F. Sometimes Chlorine also participates in Hydrogen bonding.