1.

[Fe(H_2O)_6 NO] and [Cr(NH_3)_6](NO_2)_3 both are paramagnetic species with 'spin' only magnetic moment of 3.93 B.M. The hybridisation of central metal ions in these species respectively are :

Answer»

Both `sp^3d^2`
Both `d^2sp^3`
`sop^3d^2 and d^2sp^3`
`d^2sp^3 and sp^3d^2`

SOLUTION :`3.93=sqrt(N(n+2))`, so n=3 (here n is NUMBER of UNPAIRED ELECTRONS


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