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What is the conflict (difference/contradiction) between VSEPR Theory and valence bond theory? And how hybridization resolved it?

What is the conflict (difference/contradiction) between VSEPR Theory and valence bond theory? And how hybridization resolved it?

Grade:11

1 Answers

Umakant biswal
5359 Points
5 years ago
@ manas 
Vsepr is actually the modified form of vbt . 
The basic principle of the valence shell electron pair repulsion (VSEPR)theory is that each group of valence electrons around a central atom is located as far as possible from the others in order to minimize repulsions.
it is used to predict the geometry of individual molecule from the no of electron pairs surrounding the atoms . 
It is also named the Gillespie–Nyholm 
theory after its two main developers.. 
whereas when VBT came into concept , it introduces hybridisation , and with that hybridisation molecules tend to be more stable and we can predict the shape of molecule in a precise manner . 
Two atoms that have unpaired electrons in their orbitals can overlap to give rise to a chemical bond. A sigma bond ( ) forms when two atomic orbitals overlap between the nuclei of two atoms (also known as the internuclear axis).
there are many difrences between the two , u can find out that from the above explanations , |
VSEPR is simple for predicting the shape of molecules only , it doesnot have anything to do with colour , magnetic prop , hybridisation and intermixing of orbitals etc . 
HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..

 

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