Question

Which of the following, is considered to be a universal attractive force?

(a) Gravitational force

(b) Dipole-cationic linkage

(c) Ionic bond

(d) Vander Waal’s London force

The question was asked during an online interview.

My question comes from Interparticle Force in a Soil Mass in division Soil Structure and Clay Minerology of Geotechnical Engineering I

Answer 1

Right answer is (d) Vander Waal’s London force

To explain: Since the vanderwaal’s London force effective in many soils, where other is not it is considered as a universal attractive force.