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[Cr(H2 O)6]Cl3 (at no. of Cr = 24) has a...

`[Cr(H_2 O)_6]Cl_3` (at no. of Cr = 24) has a magnetic moment of `3.83 B.M`. The correct distribution of `3d` electrons the chromium of the complex.

A

`3d_(xy)^(1),3d_(yz)^(1),3d_(zx)^(1)`

B

`3d_(xy)^(1),3d_(yz)^(1),3d_(z2)^(1)`

C

`3d_((x^(2)-y^(2)))^(1)3d_(z^(2))^(1),3d_(xz)^(1)`

D

`3d_(xy)^(1),3d_((x^(2)-y^(2)))^(1),3d^(1)xz`

Text Solution

Verified by Experts

The correct Answer is:
A
magnetic momnet indicates that there are three unpaired electrons present in chromium These must be present in lower energy orbitals which are `3d_(xy) 3d_(yx)` and `3d_(xz)` .
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Knowledge Check

  • [Cr(H_(2)O)_(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

    A
    `3d_(xy)^(1), 3d_(yz)^(1), 3d_(xz)^(1)`
    B
    `3d_(xy)^(1), 3d_(yz)^(1), 3d_(z^(2))^(1)`
    C
    `3d_((x^(2)-y^(2)))^(1), 3d_(z^(2))^(1), 3d_(xz)^(1)`
    D
    `3d_(xy)^(1), 3d_((x^(2)-y^(2)))^(1), 3d_(yz)^(1)`

  • [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 central metal of the complex is

    A
    `3d_(xy)^1 , 3d_(yz)^1 , 3d_(xz)^1`
    B
    `3d_(xy)^1 , 3d_(yz)^1 , 3d_(z^2)^1`
    C
    `3d_((x^2 - y^2))^1, 3d_(z^2)^1 , 3d_(xz)^1`
    D
    `3d_(xy)^1 , 3d_((x^2 - y^2))^1 , 3d_(yz)^1`

  • [Cr(H_2 O)_6]Cl_3 (atomic number of Cr=24) has a magnetic moment of 3.83 BM. The correct distribution of 3d-elections in the chromium present in the complex is

    A
    `3d_(xy)^(1). 3d_(yz)^(1) , 3d_(zx)^(1)`
    B
    `3d_(xy)^(1) , 3d_(yz)^1 , 3d_(z^2)^(1)`
    C
    D