Which of the following alkenes does NOT exhib | vedclass

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(A) For an alkene to exhibit $cis-trans$ isomerism,each carbon atom of the double bond must be attached to two different groups. In $But-1-ene$ $(CH_3

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But$-1-$ene

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(A) For an alkene to exhibit $cis-trans$ isomerism,each carbon atom of the double bond must be attached to two different groups. In $But-1-ene$ $(CH_3-CH_2-CH=CH_2)$,the terminal carbon atom is attached to two identical hydrogen atoms. Therefore,it cannot show $cis-trans$ isomerism. In contrast,$But-2-ene$,$3,4-Dimethylhex-3-ene$,and $Pent-2-ene$ all have different groups attached to each carbon of the double bond,allowing for $cis-trans$ isomerism.

Which of the following alkenes does $NOT$ exhibit cis-trans isomerism?

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