Question

Explain this statement with the suitable example%%%in dipole dipole interaction, polar molecules can interact by London forces also. Thus cumulative effect is that the total of intermolecular forces in polar molecules increase%%%

Answer 1

Polar molecules have both dipole dipole attraction as well as London forces. Due to these forces the molecules have additional intermolecular forces. For ex., HCl has dipole dipole attraction as well as vander Waal's forces.