What is the IUPAC name of the compound with a triple bond between two carbon atoms?

The correct designation for a compound that contains a triple bond between two carbon atoms is classified as an alkyne. In organic chemistry, the presence of a triple bond (represented as a three-bond link between two carbon atoms) is a defining characteristic of alkynes. The IUPAC naming convention assigns the suffix "-yne" to alkynes, indicating that at least one triple bond is present in the carbon chain.

In contrast, alkanes are characterized by single bonds only and have the suffix "-ane"; alkenes feature at least one double bond with the suffix "-ene." Aldehydes contain a specific functional group (a carbonyl group bonded to a hydrogen atom), which is not relevant to the definition of a compound with only carbon-carbon triple bonds. Therefore, among the given options, the term that accurately reflects the presence of a triple bond in the compound is "alkyne."