Question

question
how many total isomers are possible for an alkene with the molecular formula c₄h₈?

• only include compounds that contain a double bond.

select the correct answer below:
6
5
4
3

Explanation:

Step1: List possible structures

1 - butene, 2 - butene (which has cis - and trans - isomers), 2 - methyl - 1 - propene.

Step2: Count isomers

There are 3 structural isomers and 1 geometric isomer (cis - 2 - butene and trans - 2 - butene count as geometric isomers of 2 - butene), so a total of 4 isomers.

Answer:

1. Option Text