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Q.
The molecule which has zero dipole moment is
Jharkhand CECEJharkhand CECE 2010Chemical Bonding and Molecular Structure
Solution:
The molecules having distorted geometry have dipole moment and those having regular geometry have zero dipole moment. $\because NH_3, CH_3Cl\, and\, ClO_2$ have distorted geometry.$\therefore $ They have dipole moment. $\because BF_3$ has regular triangular planar geometry and thus, the dipole moment of$BF_3$ is zero.