A) \[{{\mu }_{eff}}=\sqrt{n(n+2)}\,BM\]
B) \[{{\mu }_{eff}}=\sqrt{2(n+2)}\,BM\]
C) \[{{\mu }_{eff}}=\sqrt{n(2n+2)}\,BM\]
D) \[{{\mu }_{eff}}=\sqrt{n(n+1)}\,BM\]
Correct Answer: A
Solution :
Effective magnetic moment \[({{\mu }_{eff}})\] is \[\mu =\sqrt{n(n+2)}\] where, n = number of unpaired electrons. A single unpaired electron has a magnetic moment of 1.73 Bohr magneton (BM).
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