Question

The molecule which has zero dipole moment is

• A. $CH_3Cl$
• B. $NF_3$
• C. $BF_3$
• D. $ClO_2$

Answer 1

Answer: (C)

$BF_3$

Answer 2

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.