Which statement(s) is/are correct about dipole moment.  I. 1 Debye is equivalent to 3.33×10−30Cm.  II. 1 Debye is equivalent to 10−18 esu.  III. SI unit of dipole moment is coulomb meter (Cm)IV. Dipole moment of a molecule is useful to explain the shape of a molecule and also to predict other properties of the molecule.