who's right = who is right. This is a question asking which person is right, has the right answer ....
whose right - means the right of which person ... in the way: the right you have to do or to obtain something.
Flying Dutchman says it all.
Flying Dutchman - excellent answer, - concise and to the point.
I like these kind of questions, this way we learn more. For me it is very good way to learn English.
who is right? = Who's right?
who's right is an abbreviation of "who is right?"
'whose right' can only be used as a noun phrase or to introduce a subordinate clause
who's right equal who is right.
OK. Both could be used.
"Whose right?" Does not exist. When talking about what an individual deserves, we always say "rights", not "right".
The right to bear arms. Whose right are we talking about.