HF, H₂, H₂S, CO₂, NH₃, BF₃, CH₄, CHCl₃, SiF₄, H₂O, BeF₂

Correct Answer: 6

H₂, CO₂, BF₃, CH₄, SiF₄ and BeF₂ are symmetric molecules, hence their individual bond dipoles cancel out resulting in zero net dipole moment.

All remaining molecules are either bent, pyramidal or unsymmetrical and hence polar.