Which of the following Van der Waals forces would have the most action among molecules of methane. CH4

a. diapole-diapole

b. ion-diapole

c. hydrogen-diapole

d. London dispersion

Answer is: d) London dispersion.

Fritz Wolfgang London (1900 - 1954) was a German physicist.

The London dispersion force is the weakest and temporary attractive intermolecular force.

Atoms of one molecule induce temporary dipole at another molecule, so this f orce is also called - an induced dipole-induced dipole attraction