Question

Three monosulfur fluorides are observed: SF2, SF4, and SF6. Of these, ____ is/are polar.

Answer 1

Answer:

SF2 and SF4 only are polar.

Explanation:

With respect to the SF2 molecule, this molecule is not symmetrical, it has a negative and a positive side, which makes it a polar molecule, due to the differences in electronegativity.

In the SF4 molecule the four bond dipole moments are equal and due to the molecular geometry they do not cancel each other resulting in a polar molecule.

SF6 is a nonpolar molecule because the six fluorine atoms are symmetrically arranged around the sulfur atom, the bonding dipoles cancel each other.