The dipole moment of chlorobenzene is $1.73 \, D$. The dipole moment of $p-$dichlorobenzene is expected to be $............ \, D$.

The critical temperature of water is higher than that of $O_2$ because $H_2O$ molecules ......

The dipole moments of $CCl_{4}$,$CHCl_{3}$ and $CH_{4}$ are in the order:

Which of the following has the maximum dipole moment?

Which of the following compounds exhibits a net dipole moment?

Observe the following list of molecules. The number of polar and non-polar molecules are respectively: $NH_3, BF_3, NF_3, H_2S, CO_2, CH_4, CHCl_3, H_2O$