inorganic vs chemical science

inorganic is not a noun while chemical science is a noun.

Word	Noun	Adjective	Verb	Adverb
inorganic	No	Yes	No	No
chemical science	Yes	No	No	No

inorganic (noun)	chemical science (noun)
	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

inorganic (adjective)	chemical science (adjective)
relating or belonging to the class of compounds not having a carbon basis
lacking the properties characteristic of living organisms