Problem: Indicate whether each of the following molecules is capable of geometrical (cis-trans) isomerism. For those that are, draw the structures:(a) 1,1-dichloro-1-butene(b) 2,4-dichloro-2-butene(c) 1,4-dichlorobenzene (d) 4,4-dimethyl-2-pentyne

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Geometric isomerism: possible when there are two identical groups across the double bond


(a) 1,1-dichloro-1-butene

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Problem Details

Indicate whether each of the following molecules is capable of geometrical (cis-trans) isomerism. For those that are, draw the structures:

(a) 1,1-dichloro-1-butene

(b) 2,4-dichloro-2-butene

(c) 1,4-dichlorobenzene 

(d) 4,4-dimethyl-2-pentyne


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