No. Moto Z2 Play does not support CDMA network.
You do not have to do anything special to avail Jio offer on Moto Z2 Play. Just when you start using the mobile, insert your Jio sim and it will get activated by the Jio company itself.
No. Moto Z2 Play is not CDMA+GSM. It is GSM+GSM.
Yes, Moto Z2 Play does have the memory card slot.
Yes, Moto Z2 Play does have fm radio.