Question

Molecules possessing permanent electric dipole moment gives
Vibrational spectra or Rotational spectra or electronic Spectra or No effect​

Answer 1

Answer:

all the CHARACTERISTICS is shown by the molecule ❤

Answer 2

Answer

Molecules possessing permanent moment gives Rotational spectra.

Explanation

In order for the rotational motion of the molecule to couple with light, it's a necessity for the molecule to possess a permanent moment. Although there are special cases of chiral molecules with elements of molecular symmetry, they typically have C1-symmetry and are polar. A pure rotation spectrum can only arise when the molecule possesses a permanent moment. Like with vibrational spectroscopy, the physical effect that couples to photons could also be a changing moment.  However, since dipole can be a vector quantity (it has both size and direction) rotation can cause a permanent dipole to vary direction, and hence we observe its spectra.

#SPJ3