Tax rate will be same in state an union territory. Eg.cgst 9%+sgct9% in state.means same format in Union territory. (Cgst9%+utgst 9%)
As of now yes, or it may be notified.
Yes it is the same. To clarify – sgst will not be by the name sgst, for example for uttar pradesh it will upgst, for chandigarh (union territory) it will go by the name chandigarh gst etc.