The non-polar molecules involve London dispersion and dipole – induced dipole forces.
Answer: London dispersion forces and dipole-induced dipole forces
Explanation:
The non-polar molecules are formed when bond occurs between elements whose electro-negativity value does not vary significantly with each other. The molecules exhibit inter-molecular forces between them to form a bond.
The non-polar molecules have the weakest bond strength since their electro-negativity is not significantly different. So, the non-polar molecules exhibit London dispersion force, a type of Van der Waals force and also dipole-induced dipole forces.
In these forces, the dipole attract each other when the molecules come nearby. When they are moved away, the dipole breaks.