Pick out the correct statement with respect to [Mn(CN)6]3-
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a
It is sp3 d2 hybridised and tetrahedral.
b
It is d2sp3 hybridised and octahedral.
c
It is dsp2 hybridised and square planar.
d
It is sp3 d2 hybridised and octahedral.
answer is B.
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Detailed Solution
Mn(CN)63- Let oxidation state of Mn be x . x+6×(-1)=-3x=+3 Electronic configuration of Mn:[Ar]4s23d5 Electronic configuration of Mn3+:[Ar]3d4 CN-is a strong field ligand thus, it causes pairing of electrons in 3d -orbital. Thus, Mn(CN)63- has d2sp3 hybridisation and has octahedral geometry.