If the bond length and dipole moment of a diatomic molecule are $1.25 \ \mathring{A}$ and $1.0 \ D$ respectively,what is the percent ionic character of the bond?

Which molecule has both non-polar and polar bonds,but the molecule as a whole is polar?

In which of the following pairs,both molecules possess a dipole moment?

Explain the dipole moment of $AB_2$ linear molecules (e.g.,$BeF_2$) and $AB_2$ angular molecules (e.g.,$H_2O$).

The bond length of $HCl$ molecule is $1.275 \ \text{Å}$ and its dipole moment is $1.03 \ \text{D}$. The ionic character of the molecule (in percent) (charge of the electron $= 4.8 \times 10^{-10} \ \text{esu}$) is

Which of the following molecules shows the least dipole moment?