Question

[Cr(H₂O)₆]Cl₃ has a magnetic moment of 3.83 BM. The correct distribution of 3d electrons in the chromium of the complex -

• A. 3d¹_xy, 3d¹_yz, 3d¹_3x
• B. 3d¹_xy, 3d¹_yz, $3{d^{1}}_{z^{2}}$
• C. $3{d^{1}}_{(x^{2}–y^{2})},3{d^{1}}_{z^{2}},3{d^{1}}_{zx}$
• D. 3d¹_xy, 3d¹(x² – y²²22), 3d¹_yz

Answer 1

Answer: (A)

3d¹_xy, 3d¹_yz, 3d¹_3x

Answer 2

[Cr(H₂O)₆] Cl₃ have Cr³⁺ having d³ configuration
since it is octahedral complex. Thus electrons are filled in t_2g orbitals (d¹_xy, d¹_yz, d¹_zx). Thus it have configuration as t_2g³ eg⁰