1.

The hyparconjugative stabilities of tert-butyl cation and 2-butene, respectively ,are due to

Answer»

<P>`sigma to p("sigma") ("empty ") and sigma to pi^("*")`ELECTRON delocalization.
`sigma to sigma^("*") and sigma to pi` electron delocalization.
`sigma to `p (FILLED ) and ` sigma to pi` electron delocalization.
p (filled ) `to sigma^("*") and sigma to pi^("*")` electron delocalization .

ANSWER :A


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