Are pronouns used when asking questions interrogative pronouns?

Yes, pronouns are used when asking questions, and these are called interrogative pronouns.

Here are some examples:

* Who is going to the party?

* What did you eat for lunch?

* Which one do you prefer?

* Whose car is this?

* Whom did you call? (Formal)

These pronouns are used to ask about the subject, object, or possessive of a sentence. They are essential for forming questions in English.