The kind of delocalisation involving sigma bond orbitals is called ?
A
Hyperconjugation
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B
Mesomerism
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C
Tautomerism
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D
Resonance
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Solution
The correct option is A Hyperconjugation The kind of delocalization involving sigma bond orbitals is called hyperconjugation. Hyperconjugation is also known as σ−π conjugation. It is observed in alkyl groups with at least one hydrogen atom on the alpha carbon atom attached to an unsaturated carbon atom.