Answer
1) The lewis structure is shown in the picture.
2) The molecular dipole moments are canceled and hence there is no dipole moment.
3) The dipole moment of the compound is zero.
Work Step by Step
1) For the lewis structure, the carbon is drawn in the center and Fluorines are drawn around it.
2) The dipole moment in the carbon - flourine bond is towards fluorine because fluorine is more electronegative. Because the dipole moments are equal and opposite to each other, they are canceled. This makes the molecular dipole moment zero.
3) The compound has zero dipole moment.
