Which of the following possess a net dipole moment?

Which of the following molecules is the most polar?

Which molecule does not show zero dipole moment?

Which of the following compounds has the highest dipole moment $(D)$?

The cyanide ion,$CN^{-}$ and $N_2$ are isoelectronic. But in contrast to $CN^{-}$,$N_2$ is chemically inert because of

Molecular $AB$ has a bond length of $1.61\,\mathring{A}$ and a dipole moment of $0.38\,D$. The fractional charge on each atom (absolute magnitude) is $(e_0 = 4.802 \times 10^{-10}\,esu)$