Question

Non-polar molecules attract each other primarily due to

Answer 1

In a nonpolar molecule, there may still be polar bonds, it's just that the dipoles cancel each other out. So why can't there be dipole-dipole forces between nonpolar molecules with polar bonds? There are still positive and negative parts of the molecule, so there can be attractions between them.

For example, in CO2
, there are negative areas near the oxygens and positive areas near the carbon.