MCQ
The shape of $MnO^-_4$ ion and the hybridisation of $Mn$ in $MnO^-_4$ is
  • A
    tetrahedral, $sp^3$
  • tetrahedral, $d^3s$
  • C
    square planar, $dsp^2$
  • D
    square planar, $sp^3$

Answer

Correct option: B.
tetrahedral, $d^3s$
b
$MnO _4^{-}$ has a tetrahedral geometry and it uses $d ^3 s$ orbitals. That is $Mn$ uses $3 dxy , 3 dyz , 3 dzx$ orbitals and $4 s$ orbitals to bond with four oxygen atom.

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