Which of the following compounds does not sho | vedclass

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(B) Geometrical isomerism in cycloalkenes requires a ring size of at least $8$ carbon atoms to accommodate the trans-configuration without excessive r

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$1,2-$dimethylcyclobutene

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(B) Geometrical isomerism in cycloalkenes requires a ring size of at least $8$ carbon atoms to accommodate the trans-configuration without excessive ring strain. $A$. Cyclooctene can exist in both $cis$ and $trans$ forms,thus it shows geometrical isomerism. $B$. $1,2$-dimethylcyclobutene has a small ring ($4$ carbons) and the double bond is constrained within the ring,preventing the formation of a stable $trans$ isomer. Thus,it does not show geometrical isomerism. $C$. $3,4$-dimethylcyclohexene has chiral centers and can exhibit geometrical isomerism due to the relative orientation of the methyl groups ($cis$ or $trans$). $D$. Cyclohexylidenechloromethane is an exocyclic alkene where the terminal carbon has two different groups ($Cl$ and $H$),allowing for geometrical isomerism.

Which of the following compounds does not show geometrical isomerism?

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