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MHT CET20244 May 2024Morning ShiftChemistryd and f Block ElementsActual

Which pair of elements from following has half filled d-orbital in observed electronic configuration?

Options

  1. ACu and Mn
  2. BMn and Cr
  3. CZn and Co
  4. DCu and Zn

Correct answer

B. Mn and Cr

Step-by-step solution

The elements which have half-filled d-orbital in their observed electronic configuration are: Mn ( Z =25) : [ Ar ] 3 ~d ^5 4 ~s ^2 and Cr ( Z =24):[ Ar ] 3 ~d ^5 4 ~s ^1

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