O₂ (contain only dispersion force exist as it can't have hydrogen bond or dipole-dipole forces)
NB₃ (polar molecule so it contain dipole-dipole interaction in addition to dispersion force)
CH₄ (Non polar compound and has no hydrogen bond so only dispersion is present)
HF (It can form hydrogen bond because it is polar and contain F which has high electronegativity in addition to dipole-dipole and dispersion)
