What are the examples of terminal alkynes?

Terminal alkynes are a type of organic compound with a triple bond between two carbon atoms, and one of the carbon atoms is at the end of the carbon chain. Here are some examples of terminal alkynes:

Ethyne (Acetylene): The simplest terminal alkyne, with the molecular formula C2H2. It has a triple bond between two carbon atoms.

Propyne: Also known as methylacetylene, it has the molecular formula C3H4 and a triple bond at the end of a three-carbon chain.

Butyne: There are two isomers of butyne:

1-Butyne: It has a triple bond at the end of a four-carbon chain, with the molecular formula C4H6.
2-Butyne: It has a triple bond between the second and third carbon atoms of a four-carbon chain, also with the molecular formula C4H6.
Pent-1-yne: This compound has a triple bond at the end of a five-carbon chain, with the molecular formula C5H8.

Hex-1-yne: It has a triple bond at the end of a six-carbon chain, with the molecular formula C6H10.

These are some common examples of terminal alkynes, but there are many more possible terminal alkynes with longer carbon chains and different functional groups attached. Terminal alkynes are important in organic chemistry and can participate in various chemical reactions due to the presence of the reactive triple bond.