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  • The correct order of spin-only magneticmoments among the following is :(Atomic number : Mn=25, Co=27,Ni=28, Zn=30)(1) [ZnCl4]2− > [NiCl4

The correct order of spin-only magnetic
moments among the following is :
(Atomic number : Mn=25, Co=27,
Ni=28, Zn=30)
(1) [ZnCl4]2− > [NiCl4]2− > [CoCl4]2−
> [MnCl4]2−
(2) [CoCl4]2− > [MnCl4]2− > [NiCl4]2−
> [ZnCl4]2−
(3) [NiCl4]2− > [CoCl4]2− > [MnCl4]2−
> [ZnCl4]2−
(4) [MnCl4]2− > [CoCl4]2− > [NiCl4]2−
> [ZnCl4]2−

Answers (1)

best_answer

[ZnCl_4]^{2-} have no unshared electron

[NiCl_4]^{2-}  have two free electrons

[CoCl_4]^{2-} have three free electrons

[MnCl_4]^{2-} have five free electrons

So,

The order of the spin magnetic moment will be

[MnCl_4]^{2-}>[CoCl_4]^{2-}>[NiCl_4]^{2-}>[ZnCl_4]^{2-}

Hence option D is correct. 

Posted by

Pankaj Sanodiya

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