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For a tetrahedral complex [MCl(4)]^(2-),...

For a tetrahedral complex `[MCl_(4)]^(2-)`, the spin-only magnetic moment is 3.83 B.M. The element M is -

A

Co

B

Cu

C

Mn

D

Fe

Text Solution

Verified by Experts

The correct Answer is:
A
`[MCl_(4)]^(2-)` Tetrahedral `=sp^(3)` hybridisation
`M^(+2)`
`because mu=sqrt(n(n+2))B.M.=3.83`
n = 3
Means configuration of `M^(+2)=3d^(7)`
so, `M=3d^(7)4s^(2)=._(27)Co`
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