JEE Advanced | 2013General Organic ChemistryHard
Question
The hyperconjugative stbilities of tert-butyl cation and 2-butene respectively, are due to
Options
A.
σ → P (empty) and σ → π* electron delocalisations
B.σ → σ* and σ → π electron delocalisations
C.σ → p (filled) and σ → π electron delocalisations
D.
p (filled) → σ* and σ → π* electron delocalisations
Solution
Hyperconjugative stabilities of ter-butyl cation [
] and 2-Butene [CH3-CH=CH-CH3]
involves 
and 
respectively
π*=Antibonding molecular orbital
π=Bonding molecular orbital
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