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Chemistry - GOC Question with Solution | TestHub

ChemistryGOCHyper conjugationMedium2 minQB

ChemistryMediumsingle choice

What is the type of conjugation for the given reaction ?

$R_{3} Si - C H_{2} - C H_{2}^{+}$ $⇌$ $R_{3} S i^{+}$ +

structure

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Answer:

Solution:

The C-Si σ bond is directly attached to the carbon next to the cation centre and shifts into the empty p orbital, giving $R_{3} S i^{+}$ and ethene. One σ bond interacts with a p orbital : hyperconjugation (σ-p).

Only one σ bond is involved, so it is not double hyperconjugation.

Stream:JEESubject:ChemistryTopic:GOCSubtopic:Hyper conjugation

⏱ 2mℹ️ Source: QB

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