what are two fundamental vibrations for molecules what are t

Solution

WHen IR radiation is passed through a molecular sample, the vibrational and rotational energies of the sample increase.

So the 2 types of fundamental molecular vibrations are :

1. Bending Vibrations: The position of the atoms change with respect to the primal bond axis.

2. Stretching vibrations : With the original bond axis remaining same, the distance between the 2 atoms increases/decreases.