Q. The kind of delocalization involving sigma bond orbital is called

 1396  199 Organic Chemistry – Some Basic Principles and Techniques Report Error

Solution:

The kind of delocalization involving sigma bond orbitals is called hyperconjugation. Hyperconjugation is also known as conjugation. It is observed in alkyl groups with at least one hydrogen atom on the alpha carbon atom attached to an unsaturated carbon atom.
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