TS EAMCET · Chemistry · Structure of Atom
Which of the following metal ions has a calculated magnetic moment value of \(\sqrt{24}\) \(\mathrm{BM}\) ?
- A \(\mathrm{Mn}^{2+}\)
- B \(\mathrm{Fe}^{2+}\)
- C \(\mathrm{Fe}^{3+}\)
- D \(\mathrm{Co}^{2+}\)
Answer & Solution
Correct Answer
(B) \(\mathrm{Fe}^{2+}\)
Step-by-step Solution
Detailed explanation
We know that, magnetic moment \((\mu)\) is related to number of unpaired electron ' \(n\) ', as \(\mu_{\mathrm{eff}}=\sqrt{n(n+2)} \mathrm{BM}\) \[ \mu_{\text {eff }}=\sqrt{24} \mathrm{BM} \] This corresponds, \(n=4\) as \(\mu_{\mathrm{eff}}=\sqrt{4(4+2)}=\sqrt{24}\)…
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