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JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS
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Understanding
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Assertion: The more number of oxidation states are exhibited by the actinoids than by the Lanthanoids.
Reason: There is a lesser energy difference between and orbitals than that between and orbitals.
Reason: There is a lesser energy difference between and orbitals than that between and orbitals.
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Correct option: A
Assertion is correct, reason is correct; reason is a correct explanation for assertion.
Option A (Assertion is correct, reason is correct; reason is a correct explanation for assertion.) is correct because actinoids exhibit more oxidation states due to the smaller energy difference between 5f and 6d orbitals, allowing for greater participation of electrons in bonding.
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