(I) and (III) only
(I) and (II) only
(I), (II) and (III)
(II) and (III) only
Correct option is C. (I) and (III) only
Solution:- (D)
I,IIIVBT does not explain the colour exhibited by co-ordination compounds.
VBT does not explains and gives quantitative interpretation of magnetic data.
VBT does not distinguish between weak field ligand and strong field ligand.