Is his a noun in sentence?

You're asking if "his" is a noun in a sentence. The answer is no.

"His" is a possessive pronoun, which means it shows ownership or possession.

Here's why:

* Nouns are words that name people, places, things, or ideas (e.g., dog, park, book, freedom).

* Pronouns are words that stand in for nouns (e.g., he, she, it, they, his, hers, theirs).

For example, in the sentence "This is his car," "his" replaces the noun "John" or "the man" to show that the car belongs to him.