Rotation of groups about bond are usually restricted due to large torsional strain and it is due to
Channel: Doubtnut
Date: 2020-08-23

Rotation of groups about bond are usually restricted due to large torsional strain and it is due to this reason cis and trans isomers have their independent existence. However certain structural modification in the compound makes the rotation of groups about double possible and hence for such compound, cis and trans isomer exist together in equilibrium. Which of the following compound has such structural feature and its cis and trans isomers exist together in equilibrium?