1.

The complex [Fe(H_(2)O)_(5)NO]^(2+) is formed in the 'brown ring test' for nitrates. Choose the incorrect statement for the complex.

Answer»

Its magnetic moment is approximately 3.9 BM
The oxidation STATE of IRON is `+1`
The hybridization of central metal ion is `sp^(3)d^(2)`
The brown colour of the RING is due to `d-d` transition

Solution :`[overset(+1)(Fe) (H_(2)O)_(5) overset(+)(N)O]^(2+)`
`sp^(3) d^(2) , d^(7)` config.

3 UNPAIRED `e^(-)`


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