Question

differentiate between unitary and federal government

Answer 1

unitary government:
either there is only one level of government or the sub-units are subordinate to the central government.
the central government can pass on orders to the provincial or local government.
federal government:
the central government cannot order the state government to do something .state government has powers of its own which is not answerable to the central government

Answer 2

unitary means powers willbe in only central hand but federal means dividing powers into local and central powers