Alkynes area class of HYDROCARBONS
which contain only carbon and hydrogen. Two other terms which
describe alkynes are unsaturated and acetylenes.
UNSATURATED alkyne hydrocarbons contain triple bonds.
Since the compound is unsaturated with respect to hydrogen atoms,
the extra electrons are shared between 2 carbon atoms forming
Alkynes are also generally known as ACETYLENES from
the first compound in the series.
The example compound of ethyne or acetylene is shown on the