[FeF_6]^{3-} has ........ hybridisation and . | vedclass

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(B) The electronic configuration of $Fe$ is $[Ar] 3d^6 4s^2$. In the complex $[FeF_6]^{3-}$,the oxidation state of $Fe$ is $+3$,resulting in an electr

Vedclass · Accepted Answer

$sp^3d^2$,octahedral

Vedclass · Answer

(B) The electronic configuration of $Fe$ is $[Ar] 3d^6 4s^2$. In the complex $[FeF_6]^{3-}$,the oxidation state of $Fe$ is $+3$,resulting in an electronic configuration of $[Ar] 3d^5$. Since $F^-$ is a weak field ligand,it does not cause pairing of electrons in the $3d$ orbitals. Therefore,the $4s$,$4p$,and $4d$ orbitals participate in hybridization,resulting in $sp^3d^2$ hybridization. This hybridization corresponds to an octahedral geometry. Hence,option $B$ is the correct answer.

$[FeF_6]^{3-}$ has ........ hybridisation and ....... geometry. Select the best option to fill the blank space respectively:

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