Question

Pick out the correct statement with respect to [Mn(CN)J2-
(a) It is sp²d² hybridised, tetrahedral
(b) It is d²sp3 hybridised, octahedral
(c) It is dsp² hybridised, square planar
(d) It is sp3d² hybridised octahedral

Answer 1

Answer:

d is the correct answer

Answer 2

(b) $[Mn(CN)_{6}]^{3-}$ is d²sp3 hybridised and octahedral.

Explanation:

• The oxidation state of manganese in $[Mn(CN)_{4}]^{2-}$ is +2.
• Its electronic configuration is $[Ar]3d^{4}$.
• The six CN ligands form coordinate bonds with the Mn. They donate electrons to one 1 orbital, 1 to s orbital, and 3 to p orbitals.
• Therefore forms d²sp³ hybridization.
• There are 6 ligands and it can be written as Ma₆ and therefore, form octahederal complex.
• Therefore, option (b) is correct.