For the crystal field splitting in octahedral complexes,

The IUPAC name of $$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{CO}_3\right)\right] \mathrm{Cl}$$ is

Homoleptic complexes among the following are

(A) $$\mathrm{K}_3\left[\mathrm{Al}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]$$

(B) $$\left[\mathrm{CoCl}_2(\mathrm{en})_2\right]^{+}$$

(C) $$\mathrm{K}_2\left[\mathrm{Zn}(\mathrm{OH})_4\right]$$

The correct order for wavelengths of light absorbed in the complex ions $$\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$$ and $$\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$$ is