Who does this coat belong to?

[Sarah-Betty]

1. Who does this coat belong to?
2. To who does this coat belong?
3. Whose coat is this?

Do the questions above mean the same? Which one is natural?

 

[GoesStation]

They mean the same thing. Number one and three are natural. Use whom after a preposition if you want to use the construction in number two — but sentence two is excessively formal and old-fashioned for any contemporary context.

 

[emsr2d2]

In BrE at least, you'll also hear "Whose is this coat?"