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Statement I: The spin only magnetic moment of Sc3+ is 1.73 BM Statement II: The spin only magnetic moment (in BM) of the ion is equal to\(\sqrt{n(n+2)}\), where n is the number of unpaired electrons present in the ion. |
Statement I and statement II are true and statement II is correct explanation of statement I Statement I and Statement II are true and statement II is not correct explanation of statement I Statement I is true but statement II is false Statement I is false but statement II is true |
Statement I is false but statement II is true |
The correct answer is option 4. Statement I is false but statement II is true. Statement I is false because Sc3+ has a 3d0 electron configuration, which means that it has no unpaired electrons. The spin only magnetic moment is calculated using the formula \(\sqrt{n(n+2)}\) where n is the number of unpaired electrons. Since Sc3+ has no unpaired electrons, its spin only magnetic moment is 0 BM. Statement II is true because the spin only magnetic moment is calculated using the formula \(\sqrt{n(n+2)}\) where n is the number of unpaired electrons. If n is 0, then the spin only magnetic moment is 0 BM. Therefore, statement I is false but statement II is true. |
