Which of the following alkenes is the most st | vedclass

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(D) The stability of an alkene is directly proportional to the number of $\alpha-H$ atoms attached to the double-bonded carbons (hyperconjugation).Let

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$3-$methylpent$-2-$ene

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(D) The stability of an alkene is directly proportional to the number of $\alpha-H$ atoms attached to the double-bonded carbons (hyperconjugation).Let us analyze the number of $\alpha-H$ atoms for each structure:$A$: $3-	ext{methylpent-}1-	ext{ene}$ has $2$ $\alpha-H$ atoms.$B$: $2-	ext{ethylbut-}1-	ext{ene}$ has $4$ $\alpha-H$ atoms.$C$: $3-	ext{methylpent-}1-	ext{ene}$ has $2$ $\alpha-H$ atoms.$D$: $3-	ext{methylpent-}2-	ext{ene}$ has $5$ $\alpha-H$ atoms ($3$ from the methyl group and $2$ from the methylene group).Since structure $D$ has the highest number of $\alpha-H$ atoms $(5)$,it is the most stable alkene.

Which of the following alkenes is the most stable?

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