1. I would like to know if Bitcoin can be recover from scammers. If it can be recovered how can one go about it(process and steps).
It depends, but most likely (99.99%) No. And also know that making use of recovery services will only lead to scam because such Bitcoin can not be recovered after you send it to scammers. Some that were recovered were obvious ones that are of high amount which governments like United State governments has been tracking while some are not even recovered till today. So, if you send Bitcoin to a scammer, consider it as lost because it is lost already, and Bitcoin transaction can not be reversed. If you make use of recovery service in this regard, that is another scam.
2. Are their fake Bitcoin, like we do have fake currencies note.
No fake Bitcoin can be created, no fake Bitcoin.
Fake. Yes.
No fake Bitcoin in this regard, those are regarded as Altcoins.