1.

Find the total no. of unpaired e~ present in the following complexes. (i) [Fe(CO)_(5)], (ii) [Cr(CO)_(6)] (iii) [Fe(CN)_(6)]^(4-), (iv) [Mn(CN)_(6)]^(4-)

Answer»


Solution :`MN^(2+): 3d^(5) 4s^(0)`
`[Mn(CN)_(6)]^(4-)`
Complexes (I, II, III) are diamagnetic HENCE they have no unpaired electrons.


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