The primary difference between unitary, federal and con federal forms of government is in the power levels of state and center.
Explanation:
The central government holds most of the power of governance in the Unitary form of the government in which the center has more power.
The state governments have more power than the central government in the federal form of government which is practiced in the USA and a few other unions of the world.
The central and state governments each have certain powers and responsibilities in the form of the government known as confederal where the power is shared between the two.
