An Alkene Contains a Double Bond

question 41

Multiple Choice

An alkene contains a double bond.Why is the C
C of an alkene rigid and unable to freely rotate?

• A)The C C bond is very strong, and it is impossible to break it.
• B)The σ bond gets blocked by the hydrogen atoms.
• C)The sp² hybrid orbitals of carbon take up too much room.
• D)The π electrons are delocalized through the σ bonds.
• E)The 2p orbitals of the π bond overlap above and below the C   C plane to restrict rotation.