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NEET2024Chemistryd and f Block ElementsActual

The UV-visible absorption bands in the spectra of lanthanoid ions are ' X ', probably because of the excitation of electrons involving ' Y '. The ' X ' and ' Y ', respectively, are :

Options

  1. ABroad and f orbitals
  2. BNarrow and f orbitals
  3. CBroad and d and f orbitals
  4. DNarrow and d and f orbitals

Correct answer

B. Narrow and f orbitals

Step-by-step solution

In lanthanoids, absorption bands are narrow because of excitation within f-level.

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