` 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?

Options

A. `[MrBr_6]^(4-)`, octahedral
B. `[MnBr_4]^(2-)`, square planar
C. `[MnBr_4]^(2-)` , tetrahedral
D. `[MnBr_5]^(3-)` , trigonal bipyramidal

Answer

C

Explanation

Magnetic moment `sqrt(n(n+1))= 5.92` B.M. `implies` n
(unpaired electrons )=5

`sp^3` hybridization (tetrahedral)