Question

Which of the following is an example of an alkene?

• A. Ethane
• B. Ethene
• C. Ethyne
• D. Benzene

Hint:

Remember: - Alkane: single bond → suffix “–ane” - Alkene: double bond → suffix “–ene” - Alkyne: triple bond → suffix “–yne”

Answer 1

The Correct Option is B

Alkenes are unsaturated hydrocarbons that contain at least one carbon-carbon double bond. Ethene (C\textsubscript{2}H\textsubscript{4}) is the simplest alkene and contains a C=C double bond. Other options: (a) Ethane (C\textsubscript{2}H\textsubscript{6}) is an alkane with all single bonds.
(c) Ethyne (C\textsubscript{2}H\textsubscript{2}) is an alkyne with a triple bond.
(d) Benzene is an aromatic compound with alternating double bonds in a ring, not a straight-chain alkene.