The dipole moment is zero for the molecule:

In which of the following molecules is $\mu$ (observed) found to be greater than $\mu$ (theoretical)?

Which pair of molecules are polar species?

Which one of the following has the highest dipole moment?
$(i)$ $CH_2Cl_2$
$(ii)$ $CHCl_3$
$(iii)$ $CCl_4$

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

The molecular size of $ICl$ and $Br_2$ is approximately the same,but the $b.p.$ of $ICl$ is about $40 \ ^oC$ higher than that of $Br_2$. This is because: