Q.

The correct order of the calculated spin only magnetic moments of complexes (A) to (D) is:
 (A) Ni(CO)4
(B) [Ni(H2O)6]Cl2
(C) Na2[Ni(CN)4]
(D) PdCl2(PPh3)2

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a

(C) (D) < (B) < (A)

b

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

c

(A) (C) < (B)  (D)

d

(A)  (C)  (D) < (B)

answer is A.

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Detailed Solution

 

Na2[Ni(CN)4]   Ni2+ = 3d8 (it has strong field ligand)Number of unpaired e- = 0 μ = 0 B. M PdCl2(P P h3)2  Pd2+ = 4d8( it is dimagnetic),μ = 0 B.M  

Hence correct option is (A),(A) = (C) =  (D) < (B)  

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