Among the following,the molecule with the lowest dipole moment is

Which of the following has the maximum dipole moment?

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 $(e_0 = 4.802 \times 10^{-10}\,esu)$

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

What is the increasing order of dipole moment for the following compounds? $(i)$ Toluene $(ii)$ $m$-dichlorobenzene $(iii)$ $o$-dichlorobenzene $(iv)$ $p$-dichlorobenzene

If $B-Cl$ bond has a dipole moment,explain why $BCl_3$ molecule has zero dipole moment.