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

Which of the following molecules will have polar bonds but zero dipole moment?

The dipole moment of $HCl$ is $1.03 \ D$. If the $H-Cl$ bond distance is $1.26 \ \mathring{A}$,what is the percentage of ionic character in the $H-Cl$ bond? ............. $\%$

Write the significance/applications of dipole moment.

Which of the following molecules has a net dipole moment of zero?

Statement-$1$: $CCl_4$ and $H_2O$ are immiscible with each other. Statement-$2$: $CCl_4$ is a polar solvent.