11th Class Chemistry Chemical Bonding and Molecular Structure Question Bank 11th CBSE Chemistry Chemical Bonding and Molecular Structure

  • question_answer Explain how VB theory differs from Lewis concept.

    Answer:

                    (i) According to Lewis concept, a covalent bond is formed by mutual sharing of electrons whereas according to VB theory, a covalent bond is formed by the overlap of half-filled atomic orbitals containing electrons with opposite spin. (ii) VB theory can explain the shapes of molecules whereas Lewis concept cannot. (iii) VB theory can explain the strength of bonds whereas Lewis concept cannot.


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