MEDIUMMCQ SINGLENEET ChemistryInorganic ChemistryCoordination compoundsPrevious Year Questions
[Cr(H2O)6]Cl3 (at. no. of Cr = 24) has a magnetic moment of 3.83 BM, the correct distribution of 3d- electrons in the chromium of the complex is [CBSE AIPMT 2006] (a) xz x -y , x 3d 3d ,3d (b) xy x -y , 3d ,3d 3d , yz (c) xy zy, 3d ,3d 3d , zx (d) xy yz, 3d ,3d 3d , z
Answer
C
Explanation
The magnetic moment is given by- n(n+2) 3.83= n(n+2) n=3 The magnetic moment shows that there are three unpaired electrons present in chromium. The lower orbitals in which they might be present will be- xy yz xz 3d ,3d &3d Hence, the correct option is (c).
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