Which of the following fluorides of Xe has zero dipole moment ?

Options

A. `XeF_2`
B. `XeF_3^(-)`
C. `XeF_4`
D. `XeF_6`

Answer

C

Explanation

In `XeF_4`, the four fluorine atoms are present at the corners of a square plane and two lone pairs are present at axial positions. All the individual bond moments in such an arrangement cancel out, as a result, the molecule has zero dipole moment.