What are the demerits which is in vsepr theory explained by valence bond theory vbt. Explain the answer in points with an appropriate example please don't send any link.

Dear Student,

The demerits iof VSEPR theory are :
  1. It doesnot make any distinction between s, p,d and f orbital. 
  2. It doesnot predict the shape of complex molecules like coordination compounds.
  3. The theory simply predicts that distortion occurs in shape of molecules such as NH3, H2O but doesnot quantify the extent of distortion. 
These limitations were overcome by the Valence Bond Theory. 

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