The magnetic moment of an octahedral homoleptic

Question:

The magnetic moment of an octahedral homoleptic $\mathrm{Mn}$ (II) complex is $5.9 \mathrm{BM}$. The suitable ligand for this complex is :

 

  1. $\mathrm{CN}^{-}$

  2. $\mathrm{NCS}^{-}$

  3. $\mathrm{CO}$

  4. ethylenediamine


Correct Option: , 2

Solution:

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