Polar molecules have permanent

Assertion: Polar mlecules have permanent dipole moment. Reason : In polar molecule, the centres of positive and negative charges coincide evcen wehen there is no external field.

Assertion: Polar mlecules have permanent dipole moment. Reason : In polar molecule, the centres of positive and negative charges coincide evcen wehen there is no external field.

_____ interaction takes place between a polar molecule having permanent dipole moment and nonpolar molecule with zero dipole moment.

Which of the following pair of molecules will have permanent dipole moment for both molecules ?

Which of the following pair of molecules will have permanent dipole moment?