1.

Consider the following complex ions, P, Q and R. P=[FeF_(6)[^(3-),Q=[V(H_(2)O)_(6)]^(2+) and R=[Fe(H_(2)O)_(6)]^(2+) The correct order of the complex ions, according to theirspin-only magnetic moment values (in B.M.) is

Answer»

`R lt Q lt P`
`Q lt R lt P`
`R lt P lt Q`
`Q lt P lt R`

Solution :The electronic configuration of central ion in complex IONS P, Q and R are

Higherthe no. of unpaired ELECTRON(s), higher will be magnetic moment. THUS the correct order of SPIN only magnetic moment is QltRltP.


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