Question

Which of the atoms/molecules in each pair below has the stronger London dispersion forces?

Atomic and molar masses are given in g/mol.

Answer 1

In general, small polar molecules have stronger forces than London dispersion forces. Hydrogen bonding, ionic bonding, and dipole-dipole forces are all stronger than dispersion forces.

Step-by-step explanation:

All molecules, whether polar or nonpolar, are attracted to one another by London dispersion forces in addition to any other attractive forces that may be present. In general, however, dipole-dipole interactions in small polar molecules are significantly stronger than London dispersion forces, so the former predominate.

Therefore, the atoms or molecules in each of these pairs have stronger forces than London dispersion forces.