Chemistry - Coordination Chemistry Question with Solution | TestHub

(A) $\to$ P, Q, S: $[Co(N{H}_3{)}_3(N{O}_2{)}_3]$ is an octahedral $M{A}_3{B}_3$ complex exhibiting facial/meridional geometrical isomerism (P), contains ambidentate NO₂⁻ showing linkage isomerism (Q), and Co³⁺ ($d^6$, strong field) is diamagnetic (S).

(B) $\to$ P, Q, T: $[Ni(N{H}_3{)}_4(CN{)}_2]$ is an octahedral $M{A}_4{B}_2$ complex showing cis/trans geometrical isomerism (P), contains ambidentate CN⁻ showing linkage isomerism (Q), and Ni²⁺ ($d^8$) has 2 unpaired electrons giving $\mu =2.84$ B.M. (T).

(C) $\to$ P, Q, R, S: $[Pt(N{H}_3{)}_2(Cl{)}_2(N{O}_2{)}_2]$ is an octahedral $M{A}_2{B}_2{C}_2$ complex that exhibits geometrical (P), linkage (Q), and optical isomerism (R), while Pt⁴⁺ ($5d^6$, low spin) is diamagnetic (S).

(D) $\to$ R, S: $[Zn(N{H}_{2}C{H}_{2}C{H}_{2}O{)}_2]$ is a tetrahedral complex with unsymmetrical bidentate ligands, which lacks a plane of symmetry showing optical isomerism (R), and Zn²⁺ ($d^{10}$) is diamagnetic (S).