Consider the following: CH₃CH₂CH₂CH=CHCH₂CH₂CH₃CH₃CH₂CH₂CH₂CH₂CH₂CH=CH₂
I II
CH₃CH₂CH=CHCH₂CH₂CH₂CH₃CH₂=CHCH₂CH₂CH₂CH₂CH₂CH₃
III IV
Which structures can exist as cis-trans isomers?

Question

Quizplus · Accepted Answer

Cis-trans isomerism (also known as geometric isomerism or configurational isomerism) is a form of stereoisomerism describing the orientation of functional groups within a molecule. In the context provided, only molecules with double bonds that have different substituents attached to the carbons involved in the double bond can exhibit cis-trans isomerism. Both I and III have such double bonds with different substituents, allowing for the possibility of cis-trans isomers.

Consider the Following: CH3CH2CH2CH=CHCH2CH2CH3 CH3CH2CH2CH2CH2CH2CH=CH2

Consider the Following: CH₃CH₂CH₂CH=CHCH₂CH₂CH₃CH₃CH₂CH₂CH₂CH₂CH₂CH=CH₂