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Overlaps Taking All Together

Which of the ...

Question

Which of the following is not explained by valence bond theory?

A

Shape of molecule

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B

Formation and directional properties of bonds in poly-atomic species

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C

Overlap and hybridization of atomic orbitals

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D

Energy of molecule

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Solution

The correct option is C Energy of molecule
The valence bond theory is not perfect. It has its own sets of limitations. It fails to answer the energies of the molecules. It explains the shapes of the simple molecules and also the overlapping and hybridization of the atomic orbitals that results in the formation of chemical bonds.

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Q. Consider a chemical species in which a carbon atom forms single bonds to three hydrogen atoms in which the carbon atom possesses no other valence electrons.
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