The highest value of the calculated spin only magnetic moment (in BM) among all the transition metal complexes is :
Show Hint
- 5.92
- 6.93
- 3.87
- 4.90
The Correct Option is A
Solution and Explanation
A transition metal ion has only five d-orbitals, so the maximum number of unpaired electrons is 5 (high-spin \(d^5\), e.g. \(\mathrm{Mn^{2+}}\), \(\mathrm{Fe^{3+}}\)).
\(\mu_{max}=\sqrt{5\times7}=\sqrt{35}=5.92\) BM.
Check others: n = 6 would give \(\sqrt{48}=6.93\) BM (impossible for d-block), n = 3 gives 3.87, n = 4 gives 4.90.
Answer: (1) 5.92
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