Question

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

• A. 1.73
• B. 2.8
• C. 3.42
• D. 2.25

Answer 1

Answer: (B)

2.8

Answer 2

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