Match List-I with List-II for oxidation number of central metal atom.

$ \begin{array}{llcc} \hline \begin{array}{c} \text { List-I } \\ (\text { Complex }) \end{array} & & \begin{array}{c} \text { List-II } \\ \text { (Oxidation number) } \end{array} \\ \hline \text { A. } \mathrm{Ni}(\mathrm{CO})_4 & \text { I. } & +1 \\ \hline \text { B. }\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{NO}\right]^{2+} & \text { II. } & \text { Zero } \\ \hline \begin{array}{l} \text { C. }\left[\mathrm{Co}(\mathrm{CO})_5\right]^{2-} \\ (\mathrm{Each} \mathrm{Cr}) \end{array} & \text { III. } & -1 \\ \hline \begin{array}{l} \text { D. }\left[\mathrm{Cr}(\mathrm{CO})_{10}\right]^{2-} \\ (\mathrm{Each}) \end{array} & \text { IV. } & -2 \\ \hline \end{array} $

Choose the correct match from the options given below

Match List I with List II.

Choose the correct answer from the options given below:

The complex showing a spin-only magnetic moment of $2.82 \mathrm{~BM}$ is

The correct statement with respect to the complexes $\mathrm{Ni}(\mathrm{CO})_4$ and $[\mathrm{Ni}(\mathrm{CN})_4]^{2-}$ is

What is the hybridisation of [CrF₆]^3$-$ ?

Select the correct statement about the complex [Co(NH₃)₅SO₄] Br.

Permanganate ion (MnO$_4^ - $) is dark purple coloured though Mn is in + 7 oxidation state with d⁰ configuration. This is due to

Which is true in case of [Ni(CO)₄]?

Magnetic moment of in [Co(F₆)]^2$-$ of unpaired electron .......... .

According to IUPAC nomenclature sodium nitroprusside is named as

In qualitative analysis when H₂S is passed through an aqueous solution of salt acidified with dilute HCl, a black ppt. is obtained. On boiling the precipitate with dil. HNO₃, it forms a solution of blue colour. Addition of excess of aqueous solution of NH₃ to this solution gives

Identify the incorrect statement regarding the complex [Cr(NH₃)₆]Cl₃.