Match the complexes in Column I with their properties listed in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 $$\times$$ 4 matrix given in the ORS.
| Column I | Column II | ||
|---|---|---|---|
| (A) | $$\mathrm{[Co(NH_3)_4(H_2O)_2]Cl_2}$$ | (P) | geometrical isomers |
| (B) | $$\mathrm{[Pt(NH_3)_2Cl_2]}$$ | (Q) | paramagnetic |
| (C) | $$\mathrm{[Co(H_2O)_5Cl]Cl}$$ | (R) | diamagnetic |
| (D) | $$\mathrm{[Ni(H_2O)_6]Cl_2}$$ | (S) | metal ion with +2 oxidation state |
The coordination of $$\mathrm{Ni^2+}$$ is 4.
$$\mathrm{NiCl_2+KCN}$$ (excess) $$\to$$ A (cyano complex)
$$\mathrm{NiCl_2+ conc.~HCl}$$ (excess) $$\to$$ B (chloro complex)
The IUPAC names of $$\mathbf{A}$$ and $$\mathbf{B}$$ are
The coordination of $$\mathrm{Ni^2+}$$ is 4.
$$\mathrm{NiCl_2+KCN}$$ (excess) $$\to$$ A (cyano complex)
$$\mathrm{NiCl_2+ conc.~HCl}$$ (excess) $$\to$$ B (chloro complex)
Predict the magnetic nature of $\mathbf{A}$ and $\mathbf{B}$.
The coordination of $$\mathrm{Ni^2+}$$ is 4.
$$\mathrm{NiCl_2+KCN}$$ (excess) $$\to$$ A (cyano complex)
$$\mathrm{NiCl_2+ conc.~HCl}$$ (excess) $$\to$$ B (chloro complex)
The hybridisation of $A$ and $B$ are :
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