ethane vs paraffin series

ethane and paraffin series both are nouns.

Word	Noun	Adjective	Verb	Adverb
ethane	Yes	No	No	No
paraffin series	Yes	No	No	No

As nouns, paraffin series is a hypernym of ethane; that is, paraffin series is a word with a broader meaning than ethane:

ethane: a colorless odorless alkane gas used as fuel
paraffin series: a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)

Other hypernyms of ethane include hydrocarbon, alkane, alkane series, methane series, paraffin.

ethane (noun)	paraffin series (noun)
a colorless odorless alkane gas used as fuel	a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)