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Question

The 'spin only' magnetic moment of Ni2+ in aqueous solution would be :
[Atomic number of Ni = 28]

A
6 BM
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B
15 BM
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C
2 BM
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D
8 BM
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Solution

The correct option is D 8 BM
Ni2+ has 3d8 as outer electronic configuration. It has 2 unpaired electrons.
The 'spin only' magnetic moment of Ni2+ in aqueous solution would be n(n+2)=2(2+2)=8 BM.

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