cacodyl radical vs arsenic group

cacodyl radical and arsenic group both are nouns.

Word	Noun	Adjective	Verb	Adverb
cacodyl radical	Yes	No	No	No
arsenic group	Yes	No	No	No

As nouns, cacodyl radical and arsenic group are synonyms defined as:

cacodyl radical and arsenic group: the univalent group derived from arsine

Other synonyms of cacodyl radical include cacodyl, cacodyl group.

cacodyl radical (noun)	arsenic group (noun)
the univalent group derived from arsine	the univalent group derived from arsine