Why has phenol higher boiling point than toluene ?

Explanation

henol (molecular mass 94) has higher boiling point than toluene (molecular mass 92). This is due to the fact that phenol forms intermolecular hydrogen bonding leading to association of its molecules. Consequently, ad. ditional energy is needed to break hydrogen bonds which raises its boiling point.

On the other hand, toluene does not form hydrogen bonds and therefore, its boiling point is loss.