Including cis-trans isomers, how many different stereoisomers are possible for an alkene that has the molecular formula C₅H₁₀?

Question

Quizplus · Accepted Answer

The first step is to identify the double bond location. The molecular formula can be rearranged to show this as: C2H2S1U1B14S1U1B110S1U1B0

There are two possible locations for the double bond: between the C2-C3 or the C14-C15 carbon atoms. Each location can have cis and trans isomers, giving a total of 4 possible stereoisomers. However, there is also the possibility of having both cis and trans isomers at each location, giving a total of 6 possible stereoisomers.

Therefore, the answer is C) 6.

Including Cis-Trans Isomers, How Many Different Stereoisomers Are Possible for an Alkene