Magnetic moment of $[M n C l_{4}]^{2 -}$ is 5.92 BM. Explain giving reason present.

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Solution

The magnetic moment 5.92 BM shows that there are five unpaired electrons present in the d-orbitals of $M n^{2 +}$ ion. As a result, the hybridisation involved is $s p^{3}$ rather than $d s p^{2} .$ Thus tetrahedral structure of $[M n C l_{4}]^{2 -}$ complex will show 5.92 BM magnetic moment value.

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