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Larger number of oxidation states are ex...

Larger number of oxidation states are exhibited by the actinoides than those by the lanthanoids, the main reason being :

A

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

B

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

C

More reactive nature of the actinoids than the lanthanoids

D

4f orbitals are more diffused than 5f orbitals

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The correct Answer is:
A
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