Q. The molecule which has zero dipole moment is

 3745  228 Jharkhand CECEJharkhand CECE 2010Chemical Bonding and Molecular Structure Report Error

Solution:

The molecules having distorted geometry have dipole moment and those having regular geometry have zero dipole moment. have distorted geometry. They have dipole moment. has regular triangular planar geometry and thus, the dipole moment of is zero.