If the electron pair forming a bond between two atoms $A$ and $B$ is not in the centre,then the bond is

Indicate the dipole moment arrow for the following molecules:
$(i)$ $HF$
$(ii)$ $CO$
$(iii)$ $Cl_2$

Which of the following is the most polar?

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:

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

Assertion : Molecules of larger size have higher polarizability.
Reason : Polarizability is observed only in those molecules which have a permanent dipole moment.