Explanatory notes
… ACYCLIC HYDROCARBONS These form a homologous series which may be represented by the general formula (C n H 2n+2 ). … more of the hydrogen atoms in these hydrocarbon molecules may be replaced by alkyl radicals (e.g., methyl, ethyl, … products of the cracking of petroleum oils, etc.); they may also be produced by synthesis. (a) The first members of …