Which Of The Following Ions Are Expected To Be Paramagnetic To The Same Extent?  I. [FeF6]3–                              II. [MnCl4]2– III. [NiCl4]2–     

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Question

 

Which of the following ions are expected to be paramagnetic to the same extent? 

I. [FeF6]3–                              II. [MnCl4]2–

III. [NiCl4]2–     

Solution

Correct option is

I and II

 

[FeF6]3– : Fe (III) – 3d5 ; high spin complex (sp3d2), n = 5     

[MnCl4]2– : Mn (II) – 3d5, high spin complex (sp3), n = 5   

[NiCl4]2– : Ni (II) – 3d8 ; high spin complex (sp3), n = 2

Testing

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