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Which of the following molecules cannot be explained by valence bond theory?

 

Option: 1

\mathrm{H}_2


Option: 2

\mathrm{Cl}_2


Option: 3

\mathrm{CO}_2


Option: 4

\mathrm{O}_3


Answers (1)

best_answer

\mathrm{O}_3 is a molecule with a trigonal planar structure. Valence bond theory cannot explain the structure of \mathrm{O}_3 because it assumes that electrons are localized in atomic orbitals. However, the electrons in \mathrm{O}_3 are delocalized over three different atomic orbitals, which is why the molecule has a trigonal planar structure.

Posted by

manish painkra

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