The highest value of the calculated spin only magnetic moment (in BM) among all the transition metal complexes is

Two complexes $\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3(\mathrm{~A})$ and $\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right]_3(\mathrm{~B})$ are violet and yellow coloured, respectively. The incorrect statement regarding them is

The total number of unpaired electrons present in the complex $\mathrm{K}_3\left[\mathrm{Cr}(\text { oxalate })_3\right]$ is $\_\_\_\_$ .

The correct structures of trans- $\left[\mathrm{NiBr}_2\left(\mathrm{PPh}_3\right)_2\right]$ and meridonial- $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3\left(\mathrm{NO}_2\right)_3\right]$, respectively, are

Match List-I with List-II

Choose the most appropriate answer from the options given...

Given below are two statements :
Statement 1 : The identification of $\mathrm{Ni}^{2+}$ is carried out by dimethyl glyoxime in the presence of $\mathrm{NH}_4 \mathrm{OH}$.
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In which of the following order the given complex ions are arranged correctly with respect to their decreasing spin only magnetic moment ?
(i) $\left[\mathrm{FeF}_6\right]^{3-}$
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The number of stereoisomers possible for $\left[\mathrm{Co}(\mathrm{ox})_2(\mathrm{Br})\left(\mathrm{NH}_3\right)\right]^{2-}$ is $\_\_\_\_$ [ox = oxalate]

Number of bridging CO ligands in $\left[\mathrm{Mn}_2(\mathrm{CO})_{10}\right]$ is $\_\_\_\_$ .

The equivalents of ethylene diamine required to replace the neutral ligands from the coordination sphere of the trans-complex of $\mathrm{CoCl}_3 .4 \mathrm{NH}_3$ is $\_\_\_\_$ (Round...