Add another of carbon and two more of hydrogen and you get the second "ethane."
ethane, (C2H6), a hydrocarbon belonging to the paraffin series.
All we need trouble about, however, is the first two, Methane and ethane.
Acetylene combines with hydrogen in the presence of platinum black, and ethylene and then ethane result.
We have pictured to ourselves the molecule of methane: let us do the same with ethane.
We derived this substance from ethane by introducing a methyl group; hence it may be termed “methylethane.”