Which of the following can show geometrical i | vedclass

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(A) For a molecule to show geometrical isomerism,each carbon atom of the double bond must be attached to two different groups.In $CHCl=CHCl$ $(1,2-dic

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$CHCl=CHCl$

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(A) For a molecule to show geometrical isomerism,each carbon atom of the double bond must be attached to two different groups.In $CHCl=CHCl$ $(1,2-dichloroethene)$,each carbon is attached to one $H$ atom and one $Cl$ atom.This allows for two geometrical isomers: $cis-1,2-dichloroethene$ and $trans-1,2-dichloroethene$.In the other options ($CH_2=CCl_2$,$CCl_2=CHCl$,and $CH_2=CH_2$),at least one carbon atom is attached to two identical groups,so they cannot show geometrical isomerism.Hence,the correct option is $(A)$.

Which of the following can show geometrical isomerism?

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