Question

15 multiple choice 2 points which molecule below is an alkene? (ch₃)₂chch₂oh (ch₃)₂chch₂nh₂ ch₃ch₂och₂ch₃ ch₃ch₂ch₂co₂h (ch₃)₂c=ch₂

Explanation:

Alkenes are hydrocarbons with at least one carbon - carbon double bond ($\ce{C = C}$). Let's analyze each option:

• $\ce{(CH_{3})_{2}CHCH_{2}OH}$ has a hydroxyl group ($\ce{-OH}$), so it is an alcohol.
• $\ce{(CH_{3})_{2}CHCH_{2}NH_{2}}$ has an amino group ($\ce{-NH_{2}}$), so it is an amine.
• $\ce{CH_{3}CH_{2}OCH_{2}CH_{3}}$ has an ether functional group ($\ce{-O -}$), so it is an ether.
• $\ce{CH_{3}CH_{2}CH_{2}CO_{2}H}$ has a carboxyl group ($\ce{-CO_{2}H}$), so it is a carboxylic acid.
• $\ce{(CH_{3})_{2}C = CH_{2}}$ has a carbon - carbon double bond, so it is an alkene.

Answer:

$\boldsymbol{(CH_{3})_{2}C = CH_{2}}$ (the last option)