Which of the following statements is true?

Options

A. The dipole moment of `NF_3` is zero.
B. The dipole moment of `NF_3` is less than `NH_3`.
C. The dipole moment of `NF_3` is more than `NH_3`.
D. The dipole moment of `NF_3` is equal to `NH_3`.

Answer

B

Explanation

Because in `NH_3`, the atomic dipole and bond dipole are in the same direction whereas in `NF_3` these are in opposite directions.