Which of the following can form cis - trans isomers?
A
C2H5Br
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B
(C2H2)(COOH)2
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C
CH3CHO
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D
CH3(CH2)2COOH
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Solution
The correct option is B(C2H2)(COOH)2 Above all the given compound only compound B have cis and trans isomer because it has restricted rotation due to double bond as well it contains both different group along double bond.