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Mn^(2+) forms a complex with Br– ion. Th...

` Mn^(2+)` forms a complex with Br– ion. The magnetic moment of the complex is 5.92 B. M. What could not be the probable formula and geometry of the complex?

A

`[MrBr_6]^(4-)`, octahedral

B

`[MnBr_4]^(2-)`, square planar

C

`[MnBr_4]^(2-)` , tetrahedral

D

`[MnBr_5]^(3-)` , trigonal bipyramidal

Text Solution

Verified by Experts

The correct Answer is:
C
Magnetic moment `sqrt(n(n+1))= 5.92` B.M. `implies` n
(unpaired electrons )=5

`sp^3` hybridization (tetrahedral)
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  • The magnetic moment of complex 'C' is:

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    `1.7 B.M.`
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    B
    `[Cr(H_(2)O)_(6)]^(3+)`
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