The correct name for the compound CH₃CHFC₂H₅ is 2-fluorobutane. Here's how to break down the name:

* Butane: The longest carbon chain in the molecule contains four carbons, which is the base name "butane".

* 2-Fluoro: The fluorine atom is attached to the second carbon in the chain, hence "2-fluoro".

Let me know if you would like help naming other compounds!