Question

Intermolecular force of attraction is least in gases or plasma particles

Answer 1

There are several types of attractive intermolecular forces:

Dipole-dipole forces,

London dispersion forces,

Hydrogen bonding, and

Induced-dipole forces

The first three forces are also collectively called van der Waals forces. All molecular and intermolecular attractive forces are electrostatic in nature. That is, they involve attractions between positive and negative species. The strengths of these attractive forces vary widely, though usually the intermolecular forces between small molecules are weak compared to the intramolecular forces that bond atoms together within a molecule.

All of the intermolecular forces that hold a liquid together are called cohesive forces.