Homologous Series 3
Homologous Series 3 : Chemistry and Chemical Disasters. A series of similar organic compounds, differing only in that the next higher member of the series has an additional methylene group in the backbone of the chain. The n-alkane homologous series differs by one methylene subunit. Petroleum distillates are usually characterized by a series of homologous n-alkanes such as n-decane, n-undecane, n-dodecane, n-tridecane