The correct increasing order of spin-only magnetic moment values of the complex ions [MnBr4] 2– (A), [Cu(H2O)6] 2+ (B), [Ni(CN4)] 2– (C) and [Ni(H2O)6] 2+ (D) is: (A) A = B

Question

The correct increasing order of spin-only magnetic moment values of the complex ions [MnBr4] 2– (A), [Cu(H2O)6] 2+ (B), [Ni(CN4)] 2– (C) and [Ni(H2O)6] 2+ (D) is:

(A) A = B < C < D
(B) A = B < D < C
(C) C = D < B < A
(D) C < B < D < A

Prashant Kotian · Accepted Answer

Correct answer: D. Mn 2+ 3d 5 n = 5 Cu 2+ 3d 2,2,2 2,1 2g g t e n = 1 Ni 2+ 3d 8 square planar n = 0 Ni 2+ 3d 8 tetrahedral 2,2 2,1,1 e t n = 2

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