JEE Main 2008Annual, Paper 1ChemistryEasyd- and f-Block Elements158× since 2002Larger number of oxidation states are exhibited by the actinoids than those by the lanthanoids, the main reason being :AOption A. 4f orbitals more diffused than the 5f orbitalsBOption B. lesser energy difference between 5f and 6d than between 4f and 5d orbitalsCOption C. more energy difference between 5f and 6d than between 4f and 5d orbitalsDOption D. more reactive nature of the actinoids than the lanthanoidsCheckSkip · show solution
