NEET · Chemistry · STD 12 - 4. d and f- block elements
'Spin only' magnetic moment is same for which of the following ions? \(A\). \(\mathrm{Ti}^{3+}\) \(B\). \(\mathrm{Cr}^{2+}\) \(C\). \(\mathrm{Mn}^{2+}\) \(D\).\(\mathrm{Fe}^{2+}\) \(E\). \(\mathrm{Sc}^{3+}\) Choose the most appropriate answer from the options given below.
- A \(A\) and \(E\) only
- B \(B\) and \(C\) only
- C \(A\) and \(D\) only
- D \(B\) and \(D\) only
Answer & Solution
Correct Answer
(D) \(B\) and \(D\) only
Step-by-step Solution
Detailed explanation
| lons | No. of unpaired electrons | Configuration |
| \( \mathrm{Ti}^{3+} \) | \(1\) | \(3 d^1\) |
| \( \mathrm{Cr}^{2+} \) | \(4\) | \(3 d^4\) |
| \( \mathrm{Mn}^{2+} \) | \(5\) | \(3 d^5\) |
| \( \mathrm{Fe}^{2+} \) | \(4\) | \(3 d^6\) |
| \( \mathrm{Sc}^{3+}\) | \(0\) | \(3 d^0\) |
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