Bond polarity and molecular polarity

Question

Really need help.

I have the structures, so I know what they look like. I just need to know if they are polar covalent bonds or nonpolar covalent bonds, symmetric or asymmetric, and polar molecule or nonpolar molecule.

PCl4

SiCl4

OF2

COH2

and CS2

Answer 1

PCl₄- symmetric, polar covalent bonds, nonpolar molecule

SiCl₄- symmetric, polar covalent bonds, nonpolar molecule

OF₂- asymmetric, polar covalent bonds, polar molecule

COH₂- asymmetric, polar covalent bonds, polar molecule

CS₂- symmetric, nonpolar covalent bonds, nonpolar molecule