noun. undefined

noun. The official IUPAC name for the organic chemical compound acetylene. The simplest alkyne, a colorless gaseous (at room temperature and pressure) hydrocarbon with the chemical formula C2H2.

noun. a colorless flammable gas used chiefly in welding and in organic synthesis

"Ideally, of course, you would also know many of the answers - that the Battle of Chickamauga happened in 1863, or that acetylene is the common name of ethyne - but, for most of us, that's the hardest part."

aliphatic compound  

bisulphide  butadiene  carcinogen  disulfide  ethene  

acetylene