The hybridization and magnetic nature

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Question:

The hybridization and magnetic nature of $\left[\mathrm{Mn}(\mathrm{CN})_{6}\right]^{4}$ and $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}$, respectively are:

  1. $\mathrm{d}^{2} \mathrm{sp}^{3}$ and diamagnetic

  2. $\mathrm{sp}^{3} \mathrm{~d}^{2}$ and diamagnetic

  3. $\mathrm{d}^{2} \mathrm{sp}^{3}$ and paramagnetic

  4. $\mathrm{sp}^{3} \mathrm{~d}^{2}$ and paramagnetic


Correct Option: , 3

Solution:

$\therefore$ hybridisation is $\mathrm{d}^{2} \mathrm{sp}^{3}$ and due to presence of unpaired $e^{-}$complex is paramagnetic in nature

$\therefore$ hybridisation is $\mathrm{d}^{2} \mathrm{sp}^{3}$ and due to presence of unpaired e complex paramagnetic in nature

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