Answer:
2-Butyne
Step-by-step explanation:
The given compound name is 2-Butyne.
According to the IUPAC rule, the compound is consist of 4 carbon atoms with triple bond at second carbon atom, so its name will be 2-Butyne or but-2-yne. 2-Butyne is an alkyne which is produced artificially at standard temperature and pressure.
Hence, the correct answer is "2-Butyne".