Which of the following exhibits geometrical i | vedclass

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(B) Geometrical isomerism is shown by alkenes where each carbon atom of the double bond is attached to two different groups.In $But-2-ene$ $(CH_3-CH=C

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$But-2-ene$

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(B) Geometrical isomerism is shown by alkenes where each carbon atom of the double bond is attached to two different groups.In $But-2-ene$ $(CH_3-CH=CH-CH_3)$,each carbon of the double bond is attached to a hydrogen atom and a methyl group.Since the groups attached to each carbon are different,$But-2-ene$ exhibits geometrical isomerism (cis and trans isomers).In $1, 1-$ dichloroethene,both chlorine atoms are on the same carbon,so it does not show geometrical isomerism.In $But-1-ene$ and $2-$ methylbut$-2-$ene,one of the carbons of the double bond is attached to two identical groups (two hydrogen atoms in $But-1-ene$ and two methyl groups in $2-$ methylbut$-2-$ene),so they do not show geometrical isomerism.

Which of the following exhibits geometrical isomerism?

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