Which suffix is used to name hydrocarbons with a triple bond?

Which suffix is used to name hydrocarbons with a triple bond?

• A. An
• B. En
• C. Diene
• D. Yne

Answer: (D)

Bond type determines the ending of the name. A triple bond is indicated by the suffix -yne, which designates an alkyne. For example, ethyne and propyne show how the triple bond is named. If there are multiple triple bonds, you keep the same suffix and add prefixes to show quantity, as in butadiyne. The other endings reflect single bonds (-ane) or double bonds (-ene), and diene refers to two double bonds, not a triple bond. So the suffix for hydrocarbons with a triple bond is -yne.

Bond type determines the ending of the name. A triple bond is indicated by the suffix -yne, which designates an alkyne. For example, ethyne and propyne show how the triple bond is named. If there are multiple triple bonds, you keep the same suffix and add prefixes to show quantity, as in butadiyne. The other endings reflect single bonds (-ane) or double bonds (-ene), and diene refers to two double bonds, not a triple bond. So the suffix for hydrocarbons with a triple bond is -yne.