Question

is this book or pen yours
is this sentence correct

Answer 1

Answer: no it is not correct the sentences will be it this book is your and pen also

Explanationno : if this work so nice

Answer 2

Answer:

It is correct, however it won't be correct if you use both pen and book in one sentence. you can use different terms like

Is this book yours? oh I forgot to asl about the pen as well.

Is this book and pen yours?