だれの question

[djz]

Hello! I wonder if anyone could help a grammar noob out
Im learning to ask whose it is like this.

これは だれの さいふですか

Could I also say?
このさいふは だれの ですか

Or would that be grammatically wrong or sound unnatural?

[Belthazar]

Yep, that works perfectly fine.

Once you’ve introduced an item into the conversation, you can use a hanging の like that to imply a reference back to that item without having to specify it again.

For another, more complex, example: 黄色いシャツがあまり好きじゃないです。赤いのはありますか = I don’t really like the yellow shirt. Do you have a red one?

[djz]

That makes sense now. Thank you kindly