Coordination Compounds 2 Question 21
####23. The highest value of the calculated spin only magnetic moment (in $BM$ ) among all the transition metal complexes is
(2019 Main, 9 Jan I)
(a) 5.92
(b) 3.87
(c) 6.93
(d) 4.90
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Answer:
Correct Answer: 23. (b)
Solution:
- The spin only magnetic moment ( $\mu$ ) (in $BM$ ) is given by
$$ \mu(\text { in } B M)=\sqrt{n(n+2)} $$
where, $n=$ number of unpaired electrons The highest value of $n$ in transition metal complex is 5 in its $d^{5}$-configuration.
$\therefore \quad \mu=\sqrt{5(5+2)} BM=5.916 BM$
