Verified Solution • 2025–26 Session moderate

QAIPMT-2006-Ch-2415: NEET 2006 Chemistry - Class 12 AIPMT-2006-Ch-2415 Solution: \([Cr(H_2O)_6]Cl_3\) (At. no. of Cr = 24) has a magnetic moment …

[Cr(H2O)6]Cl3[Cr(H_2O)_6]Cl_3 (At. no. of Cr = 24) has a magnetic moment of 3.83 B.M. The correct distribution of 3d electrons in the chromium of the complex is

Multiple Choice Options

  • A 3dxy1,3dyz1,3dz213d_{xy}^1, 3d_{yz}^1, 3d_{z^2}^1
  • B 3d(x2−y2)1,3dz21,3dxz13d_{(x^2-y^2)}^1, 3d_{z^2}^1, 3d_{xz}^1
  • C 3dxy1,3d(x2−y2)1,3dyz13d_{xy}^1, 3d_{(x^2-y^2)}^1, 3d_{yz}^1
  • D 3dxy1,3dyz1,3dxz13d_{xy}^1, 3d_{yz}^1, 3d_{xz}^1

Step-by-Step Verified Solution

3.83 = n ( n + 2 ) _ n = 3 Thus, number of unpaired electrons in d-orbitals subshells of chromium (Cr = 24) = 3 _ Configuration of Cr = 1s 2 2s 2 2p 6 3s 2 3p 6 3d 3 In 3d 3 the distribution of electrons 3 d x y 1 , 3 d y z 1 , 3 d x z 1 , 3 d x 2 _ y 2 0 , 3 d z 2 0

Related Learning Resources & Exam Preparation

NEET PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring