Question

question
an example of an alkene is:
select the correct answer below:
○ ch₂=chch=ch₂
○ ch₃ - c(ch₂ch₃)₂ - c(ch₃)₂ - ch₃
○ ch≡c - ch=ch - ch₃
○ ch≡c - ch₂ - ch₂ - ch₃

Explanation:

Step1: Recall alkene definition

Alkenes have carbon - carbon double bonds (C = C).

Step2: Analyze each option

• CH₂=CHCH=CH₂ has C = C bonds, so it is an alkene.
• CH₃−C(CH₂CH₃)₂−C(CH₃)₂−CH₃ has only single bonds, it is an alkane.
• CH≡C−CH=CH−CH₃ has a carbon - carbon triple bond (C≡C) in addition to C = C, it is an alkyne - alkene hybrid.
• CH≡C−CH₂−CH₂−CH₃ has a carbon - carbon triple bond, it is an alkyne.

Answer:

CH₂=CHCH=CH₂