interrogative sentence vs interrogation

interrogative sentence and interrogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
interrogative sentence	Yes	No	No	No
interrogation	Yes	No	No	No

As nouns, interrogative sentence and interrogation are synonyms defined as:

interrogative sentence and interrogation: a sentence of inquiry that asks for a reply

Other synonyms of interrogative sentence include interrogative, question.

interrogative sentence (noun)	interrogation (noun)
a sentence of inquiry that asks for a reply	formal systematic questioning
	a sentence of inquiry that asks for a reply
	an instance of questioning
	a transmission that will trigger an answering transmission from a transponder