Select the correct code regarding total number of space isomers for the following compounds :
(I) [Ma3b2c]^n+/-
(II) [M(AB)3]^n+/-
(III) [Ma2b2c2]^n+/-

Question

Prashant Kotian · Accepted Answer

Correct answer: D. Step 1: Identify that all three complexes are octahedral and coordinated by strong-field ligands (CN^- and NO2^-) which force the pairing of d-electrons. Step 2: Pairing leaves the two inner 3d orbitals (d_x^2-y^2 and d_z^2) completely vacant to participate in hybridization. Step 3: Consequently, all three complexes undergo low-spin inner-orbital d^2sp^3 hybridization, making option (d) the correct answer.

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