A:AnswerThis keyboard is not bluetooth. But a quick youtube search answers this question beautifully. If you use the lightning to usb adapter, it definitely works. Here is your proof.
https://youtu.be/ydcYF3-U0e4
Personally, i have tested my ipad mini (5th gen) with a k780 keyboard and an m720 mouse via one unifying receiver and that also worked flawlessly. Actually even better than it does over bluetooth. (Less lag)