chain of mountains vs range of mountains

chain of mountains and range of mountains both are nouns.

Word	Noun	Adjective	Verb	Adverb
chain of mountains	Yes	No	No	No
range of mountains	Yes	No	No	No

As nouns, chain of mountains and range of mountains are synonyms defined as:

chain of mountains and range of mountains: a series of hills or mountains

Other synonyms of chain of mountains include chain, mountain chain, mountain range, range.

chain of mountains (noun)	range of mountains (noun)
a series of hills or mountains	a series of hills or mountains