General Properties of the Transition Elements

The correct order of magnetic moments (spin only values in B.M.) among the species involved is

Which of the following pair of ions in the presence of a weak ligand will have the same spin only magnetic moments?

Among the given transition metals, the element which shows the least number of oxidation states is

Which of the following ions has a magnetic moment of $5.93 \mathrm{BM}$? $\left(\mathrm{At}.\mathrm{no}. \mathrm{V}=23, \mathrm{Cr}=24, \mathrm{Mn}=25, \mathrm{Fe}=26\right)$

Which of the following ions has maximum magnetic moment?

The oxidising ability of the given anions follows the order

Which of the following compounds is expected to be colored?

Among the following options, identify the one which exhibits the greatest number of oxidation states.

Complete the following catalytic mechanism,

$$\begin{gathered} \_\_\_\_\_+ 2 {\mathrm{I}}^{-}\to \_\_\_\_\_ {\mathrm{Fe}}^{2+}+{\mathrm{I}}_2 \\ 2 {\mathrm{Fe}}^{2+}+{\mathrm{S}}_2{{\mathrm{O}}_8}^{2-}\to 2 {\mathrm{Fe}}^{3+} +\_\_\_\_\_ \end{gathered}$$

Write the catalytic mechanism of the reaction between iodide and persulphate ions.

Which of the following statements holds true for $\mathrm{Cu}\left(\mathrm{I}\right)$ and $\mathrm{Cu}\left(\mathrm{II}\right)$ complexes ?

The melting point of ${\mathrm{Mn}}_4\mathrm{N}$ is

Which of the following are the transition metal ions responsible for colour in ruby and emerald respectively?

Find the metallic and ferromagnetic substance.

Which out of the following can act as a best reducing agent?

The colour and magnetic nature of manganate ion $\left(\text{M}\text{n}{\text{O}}_4^{{\mathrm{2-}}_{}}\right)$ is-

Which forms interstitial compounds?

How many of the following reactions are disproportionation reactions?

$\left(\mathrm{i}\right)$ ${\mathrm{Cu}}^{+}⟶{\mathrm{Cu}}^{2+}+\mathrm{Cu}$
$\left(\mathrm{ii}\right)$ $3{\mathrm{MnO}}_4^{-}+4{\mathrm{H}}^{+}⟶2{\mathrm{MnO}}_4^{-}+{\mathrm{MnO}}_2+2{\mathrm{H}}_2\mathrm{O}$
$\left(\mathrm{iii}\right)$ $2{\mathrm{KMnO}}_4⟶{\mathrm{K}}_2{\mathrm{MnO}}_4+{\mathrm{MnO}}_2+{\mathrm{O}}_2$
$\left(\mathrm{iv}\right)$ $2{\mathrm{MnO}}_4^{-}+3{\mathrm{Mn}}^{2+}+2{\mathrm{H}}_2\mathrm{O}⟶5{\mathrm{MnO}}_2+4{\mathrm{H}}^{+}$