Question

Which among the following is an example of polar molecule?

• A. $O_{2}$
• B. $H_{2}$
• C. $N_{2}$
• D. $HCl$

Answer 1

Answer: (D)

$HCl$

Answer 2

In polar molecule the centres of positive and negative charges are separated even when there is no external field. Such molecule have a permanent dipole moment. Ionic molecule like $HCl$ is an example of polar molecule