Who,Whom,which,what,whose are Interrogative Pronoun these are used to ask questions.
| Interrogative pronoun | purpose | Example |
| Whom | It uses when the person is object | Whom did you tell about my accident? |
| Who | It uses when the person is subject | Who is taking responsibility to deposit the utility bill in the bank? |
| Which | It uses person or thing and for limited choice | which house you are going to buy? |
| What | It uses to ask about something. | what is your name please? |
| Whose | It uses to show possession | Whose is this sports car? |