You're asking about the boiling point of a liquid. There are many liquids that could evaporate at 120 degrees Celsius. Here's why:

* Boiling point is a specific property of a substance. Every liquid has its own unique boiling point.

* 120 degrees Celsius is a relatively high temperature. Many substances will evaporate at that temperature.

To give you a more specific answer, I need to know what kind of liquid you're interested in. For example, are you looking for:

* A common household liquid?

* A specific chemical compound?

* A substance found in nature?

Once you provide more information, I can help you identify the specific liquid that evaporates at 120 degrees Celsius.