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  4. The spin only magnetic moment of Ni2+ (in B.M.) in aqueous solution will be

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Q. The spin only magnetic moment of $Ni^{2+}$ (in B.M.) in aqueous solution will be

COMEDKCOMEDK 2012The d-and f-Block Elements

Solution:

Magnetic moment = $\sqrt{n(n+2)}$ B.M for $Ni^{2+}, n=2$
Hence, magnetic moment = $ \sqrt{2(2 + 2)}$
= $\sqrt{8} = 2.8 $