Question

The relative strength of interionic/ intermolecular forces in decreasing order is:

• A. ion-dipole > dipole-dipole > ion-ion
• B. ion-dipole > ion-ion > dipole-dipole
• C. dipole-dipole > ion-dipole > ion-ion
• D. ion-ion > ion-dipole > dipole-dipole

Answer 1

The correct option is D ion-ion > ion-dipole > dipole-dipole

Ion-ion interactions are stronger because they have stronger electrostatic forces of attraction whereas dipoles have partial charges and hence the electrostatic forces in their case would be relatively weak.