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COMEDK2015Chemistryd and f Block Elements

More number of oxidation state are exhibited by the actinoids, than by lanthanoids. The main reason for this is

Options

  1. Agreater metallic character of lanthanoids than that of their corresponding actinoids
  2. Bmore active nature of actinoids
  3. Cmore energy difference between 5 f and 6 d -orbitals, than that between 4 f and 5 d -orbitals
  4. Dlesser energy difference between 5 f and 6 d -orbitals, than that between 4 f and 5 d -orbitals

Correct answer

D. lesser energy difference between 5 f and 6 d -orbitals, than that between 4 f and 5 d -orbitals

Step-by-step solution

More number of oxidation state are exhibited by the actinoids, than by lanthanoids. The main reason for this is lesser energy difference between 5 f and 6 d -orbitals, than that between 4 f and 5 d -orbitals.

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