alkane series vs methane series

alkane series and methane series both are nouns.

Word	Noun	Adjective	Verb	Adverb
alkane series	Yes	No	No	No
methane series	Yes	No	No	No

As nouns, alkane series and methane series are synonyms defined as:

alkane series and methane series: a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)

Other synonyms of alkane series include alkane, paraffin, paraffin series.

alkane series (noun)	methane series (noun)
a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)	a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)