Correct Answer: Alkynes contain at least one triple bond between carbon atoms.
Step 1: Understand what alkynes are. Alkynes are a type of hydrocarbon, which means they are made up of hydrogen and carbon atoms.
Step 2: Learn about the bonds in alkynes. Alkynes have at least one triple bond between two carbon atoms. A triple bond means that three pairs of electrons are shared between the two carbon atoms.
Step 3: Recognize that this triple bond is a key feature that distinguishes alkynes from other types of hydrocarbons, such as alkanes (which have single bonds) and alkenes (which have double bonds).
Step 4: Conclude that the property of alkynes is that they contain at least one triple bond between carbon atoms.
