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NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS
1
Hard
1 of 1
Application
+4 | -1
A compound in which a metal ion (Z=25) has a spin only magnetic moment of BM. The number of unpaired electrons in the compound and the oxidation state of the metal ion are respectively.
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Correct option: D
4 and 3
Option D (4 and 3) is correct because a magnetic moment of BM corresponds to 4 unpaired electrons, and with Z=25, an oxidation state of +3 leaves 4 d-electrons unpaired.
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