The hybridization and magnetic nature of Mn CN 6 4 - and Fe CN 6 3 - , respectively are :

Magnetic property: Due to presence of one unpaired electrons in 3d shell, ${\left[\mathrm{Fe}\right(\mathrm{CN}\left)6\right]}^{3-}$  ion is paramagnetic in nature.

​​​​

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

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