Which of the following is the most stable alk | vedclass

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(B) The stability of an alkene is determined by the number of hyperconjugative structures,which is directly proportional to the number of $\alpha$-hyd

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but-$2$-ene

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(B) The stability of an alkene is determined by the number of hyperconjugative structures,which is directly proportional to the number of $\alpha$-hydrogen atoms attached to the $sp^2$ hybridized carbon atoms.$1$. but-$1$-ene $(CH_3-CH_2-CH=CH_2)$: It has $2$ $\alpha$-hydrogen atoms.$2$. but-$2$-ene $(CH_3-CH=CH-CH_3)$: It has $6$ $\alpha$-hydrogen atoms ($3$ on each side).$3$. Isobutylene $(CH_3-C(CH_3)=CH_2)$: It has $6$ $\alpha$-hydrogen atoms.Comparing but-$2$-ene and isobutylene,but-$2$-ene (specifically the trans isomer) is generally more stable due to less steric hindrance compared to the branched isobutylene. Among the given options,but-$2$-ene is the most stable alkene.

Which of the following is the most stable alkene?

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