Please answer soon

Dear student,

No a compound of the type aaC=Cab do not show geometrical isomerism.
for geometrical isomerism, there must be a double bond in molecule and two atoms or groups bonded on double-bonded atoms should be different. Alkenes with general formula; abC=Cab, abC=Ccd, abC=Cax exhibit geometrical isomerism. 

While compounds like aaC=Cab or aaC=Cbb cannot show this isomerism.

Regards
 

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