Alkyne: Acetylene belongs to the alkyne family of hydrocarbons, which are characterized by having at least one triple bond between carbon atoms.
Combustion reaction: Acetylene is highly flammable and undergoes complete combustion when ignited in the presence of oxygen, producing carbon dioxide and water.
Welding torch fuel: Due to its high heat value when burned with oxygen, acetylene is commonly used as fuel for welding torches.