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Larger number of oxidation states are ex...

Larger number of oxidation states are exhibited by the actinoids then those by the lanthanoids, the main reason being

A

More reactive nature of the actinides than the lanthanides

B

4f orbitals more diffused than the 5f orbitals

C

More energy difference between 5f and 6d than between 4f and 5d orbitals

D

lesser energy difference between 5f and 6d than between 4f and 5d orbitals.

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The correct Answer is:
D
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