$$\left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}$$ is a

Correct increasing order for the wavelength of absorption in the visible region for the complexes of $$\mathrm{Co}^{3+}$$ is

Which of the following complex is optically inactive?

The electronic configuration of central metal atom/ion in $$\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$$ is

The spin only magnetic moment of $$[\mathrm{MnBr}_4]^{2-}$$ is $$5.9 \mathrm{~BM}$$. The geometry of this complex ion is

Which of the following compound has same oxidation state of the central metal atom in the cationic and anionic part?

The IUPAC name of the complex $$[\mathrm{Pt}\left(\mathrm{NH}_3\right)_3 \mathrm{Br}\left(\mathrm{NO}_2\right) \mathrm{Cl}] \mathrm{Cl}$$ is

Among the following complex ions, the one which shows geometrical isomerism will be

Assertion (A) Toxic metal ions are removed by the chelating ligands.

Reason (R) Chelate complexes tend to be more stable.