JEE Advanced · Chemistry · 13. GOC
The hyperconjugative stabilities of tert-butyl cation and 2-butene, respectively, due to
- A \(\sigma \rightarrow p\) (empty) and \(\sigma \rightarrow \pi^*\) electron delocalisations.
- B \(\sigma \rightarrow \sigma^*\) and \(\sigma \rightarrow \pi\) electron delocalisations.
- C \(\sigma \rightarrow p\) (filled) and \(\sigma \rightarrow \pi\) electron delocalisations.
- D p (filled) \(\rightarrow \sigma^*\) and \(\sigma \rightarrow \pi^*\) electron delocalisations.
Answer & Solution
Correct Answer
(A) \(\sigma \rightarrow p\) (empty) and \(\sigma \rightarrow \pi^*\) electron delocalisations.
Step-by-step Solution
Detailed explanation

In tert-butyl cation, carbon bearing charge has one vacant p orbital hence it is (empty) conjugation or Hyperconjugation.

In 2-butene hyperconjugation between and bond.
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