Which power is a residual power?

• A. Defence.
• B. Taxation.
• C. Education.
• D. Immigration.

Answer: (C)

Residual powers are the areas not written into the Constitution as Commonwealth powers, so they stay with the states. Education falls into this category because it isn’t listed as a specific Commonwealth power; states typically run schools, set curricula, and manage education policy, with the Commonwealth playing a funding and coordination role. The other options are allocated to the Commonwealth in the Constitution—defence concerns national security and is an exclusive federal power, taxation is a federal revenue power, and immigration is controlled by federal law—so they aren’t residual.