Q 12-01-006NEETNEET 2021Top questionEasy
Polar molecules are the molecules :
Answer: (A) having a permanent electric dipole moment.
In a polar molecule (for example H$_2$O or HCl), the centres of positive and negative charge do not coincide even without an external field, so it has a permanent electric dipole moment.
Non-polar molecules have zero dipole moment and acquire one (induced) only in an electric field.
Solution by Sreeraj P, M.Sc Physics