CnH2n+1 is the general formula of which homologous series?
CnH2n+1 is known as Alkyl group which is part of all hydrocarbon compounds containing functional group. In these compounds. for example homologous series of alcohols have the general formula as CnH2n+1OH.
For example, for n=1 CH3OH
For n=2 C2H5OH
For n=3 C3H7OH and so on.
You can see that the next member differs by previous member by -CH2 .