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CBSE Class 11-science Answered

Differentiate between valence bond theory and Lewis concept with regard to the formation of covalent bond.
Asked by Topperlearning User | 09 Oct, 2014, 09:30: AM
answered-by-expert Expert Answer
Lewis concept
Valence bond theory
i) Lewis concept considers the formation of covalent bond by mutual sharing of electrons.
i) Valence bond theory considers the formation of covalent bond by overlap of half filled atomic orbitals.
ii) It does not provide explanation for different shape of molecules.
ii) Valence bond theory explains the shape of molecules.
iii) Lewis structure does not explain the bond strength.
iii) Valence bond theory explains the bond strength.
Answered by | 09 Oct, 2014, 11:30: AM

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