Which of the following forms has cis-trans is | vedclass

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(B) For a compound to exhibit $cis-trans$ isomerism,each carbon atom of the double bond must be attached to two different groups. For a compound to ha

Vedclass · Accepted Answer

$4-$methylhex$-2-$ene

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(B) For a compound to exhibit $cis-trans$ isomerism,each carbon atom of the double bond must be attached to two different groups. For a compound to have a chiral center,it must have a carbon atom bonded to four different groups. In $3-methylpent-2-ene$ $(CH_3-CH=C(CH_3)-CH_2-CH_3)$,the $C2$ carbon has two different groups ($H$ and $CH_3$),but the $C3$ carbon has two identical $CH_3$ groups,so it does not show $cis-trans$ isomerism. In $4-methylhex-2-ene$ $(CH_3-CH=CH-CH(CH_3)-CH_2-CH_3)$,the $C2$ and $C3$ carbons have different groups attached,allowing for $cis-trans$ isomerism. Additionally,the $C4$ carbon is bonded to four different groups ($H$,$CH_3$,$CH_2CH_3$,and the $-CH=CH-CH_3$ group),making it a chiral center. Therefore,$4-methylhex-2-ene$ possesses both features.

Which of the following forms has $cis-trans$ isomerism and a chiral center both?

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