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JIPMER2016Chemistryd and f Block Elements

Actinides exhibit larger number of oxidation state than that of corresponding lanthanides. The reason behind this aspect is

Options

  1. Alesser energy difference between 5 f and 6 d -orbitals than between 4 f and 5 d -orbitals
  2. Blarger atomic size of actinides than the lanthanides
  3. Cmore energy difference between 5 f and 6 d orbitals than between 4 f and 5 d -orbitals
  4. Dgreater reactive nature of the actinides than the lanthanides

Correct answer

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

Step-by-step solution

Because of lesser energy difference between 5 f and 6 d orbitals than that between 4 f and 5 d -orbitals actinides exhibit larger number of oxidation state than that of corresponding lanthanides.

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