Radial: A word with diverse meanings in medicine and the biomedical sciences: 1  Pertaining to the radius, the smaller bone in the forearm. 2  The radial artery is so named because of its proximity to the radius. 3  Pertaining to the radius of a circle.
A 3D model of ethyne (acetylene), the simplest alkyne. In organic chemistry, an alkyne is an unsaturated hydrocarbon containing at least one carbonâcarbon triple bond. The simplest acyclic alkynes with only one triple bond and no other functional groups form a homologous series with the general chemical formula CnH2nâ2.
Alkene is relatively more reactive than Alkanes because of weak pi bondings. But Alkynes are most reactive because they have the most number of weak pi bonds in their molecules. Ethyne is the correct answer.ydrocarbons are a special class of organic compounds (compounds that contain carbon). An atom that has neither hydrogen nor carbon is called a heteroatom.