How would you determine if polar bond is ion-ion, dipole-dipole, dispersion forces or hydrogen bonds?

Question

Sarah Angotti · Accepted Answer

If the molecule is geometrically polar, then it will always be a dipole-dipole inter molecular force.

A polar molecule could only have an IMF for hydrogen if a hydrogen atom was bound to oxygen, nitrogen, or Florine inside the molecule. When a polar molecule lacks hydrogen bonds, a dipole-dipole force is produced. When a molecule lacks hydrogen IMFs and is nonpolar (symmetrical), a dispersion force is produced. I hope that was useful.

Easton Jones · Answer

undefined To determine the type of bond, consider the electronegativity difference between the atoms involved. A polar bond with a large electronegativity difference is likely ion-ion or hydrogen bond. If hydrogen is involved and directly bonded to a highly electronegative atom (N, O, or F), it's a hydrogen bond. If not, it's likely ion-ion. Dipole-dipole bonds occur between polar molecules, and dispersion forces occur between all molecules, but are especially significant in nonpolar molecules.