PYQ NEET- Electric Charges And Fields L-3

Question: Polar molecules are the molecules#

A) having zero dipole moment

B) acquire a dipole moment only in the presence of electric field due to displacement of charges.

C) acquire a dipole moment only when magnetic field is absent

D) having a permanent electric dipole moment

Answer: having a permanent electric dipole moment#

Sol:#

In polar molecules, the positive charge and negative charge do not overlap each other. So, the total charge on the polar molecule is zero. Thus, these types of molecules have permanent electric dipole moment. e.g. Water is polar molecule.