The alkene that exhibits geometrical isomeris | vedclass

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(A) Geometrical isomerism in alkenes occurs when each carbon atom of the double bond is attached to two different groups. In $But-2-ene$ $(CH_3-CH=CH-

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$But-2-ene$

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(A) Geometrical isomerism in alkenes occurs when each carbon atom of the double bond is attached to two different groups. In $But-2-ene$ $(CH_3-CH=CH-CH_3)$,each double-bonded carbon is attached to a hydrogen atom and a methyl group. Since these groups are different,$But-2-ene$ can exist as $cis$ and $trans$ isomers. Other options like $2-Methylbut-2-ene$,$Propene$,and $2-Methylpropene$ have at least one carbon atom in the double bond attached to two identical groups (e.g.,two $H$ atoms or two $CH_3$ groups),so they do not show geometrical isomerism.

The alkene that exhibits geometrical isomerism is ...... .

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