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. (a)
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 $ $BM$
BETA
