Number of bridging CO ligands in [Mn₂(CO)₁₀] is:

1.	2	2.	0
3.	4	4.	1

Which of the following pairs represents linkage isomers?

1. [Cu(NH₃)₄] [PtCl₄] and [Pt(NH₃)₄] [CuCl₄]

2. [Pd(PPh₃)₂(NCS)₂) and [Pd(PPh₃)₂(SCN)₂]

3. [Co(NH₃)₅NO₃]SO₄ and [Co(NH₃)₅SO₄]NO₃

4. [PtCl₂(NH₃)₄] Br₂ and [PtBr₂(NH₃)₄]Cl₂

Which one of the following has a square planar geometry?
(At. Nos. Co = 27, Ni = 28, Fe = 26, Pt = 78)

For a ${\mathrm{d}}^4$ metal ion in an octahedral field, the correct electronic configuration is:

The hybridization and magnetic nature of ${\left[\mathrm{Mn}\right(\mathrm{CN}{)}_6]}^{-4}\text{\hspace{0.17em}and\hspace{0.17em}}{\left[\mathrm{Fe}\right(\mathrm{CN}{)}_6]}^{3-}$, respectively are:

1. $\begin{array}{l}{\mathrm{d}}^2{\mathrm{sp}}^3\end{array}$and diamagnetic

2. $\begin{array}{l}{\mathrm{sp}}^3{\mathrm{d}}^2\end{array}$and diamagnetic

3. ${\mathrm{d}}^2{\mathrm{sp}}^3$ and paramagnetic

4.  ${\mathrm{sp}}^3{\mathrm{d}}^2$ and paramagnetic

The stepwise formation of [Cu(NH₃)₄]²⁺ is given below

$\begin{array}{l}{\mathrm{Cu}}^{2+}+{\mathrm{NH}}_3\stackrel{{\mathrm{K}}_1}{\rightleftarrows }{\left[\mathrm{Cu}\left({\mathrm{NH}}_3\right)\right]}^{2+}\\ {\left[\mathrm{Cu}\left({\mathrm{NH}}_3\right)\right]}^{2+}+{\mathrm{NH}}_3\stackrel{{\mathrm{K}}_2}{\rightleftharpoons }{\left[\mathrm{Cu}{\left({\mathrm{NH}}_3\right)}_3\right]}^{2+}\\ {\left[\mathrm{Cu}{\left({\mathrm{NH}}_3\right)}_2\right]}^{2+}+{\mathrm{NH}}_3\stackrel{{\mathrm{K}}_3}{\rightleftharpoons }{\left[\mathrm{Cu}{\left({\mathrm{NH}}_3\right)}_3\right]}^{2+}\\ {\left[\mathrm{Cu}{\left({\mathrm{NH}}_3\right)}_3\right]}^{2+}+\mathrm{NH}\stackrel{{\mathrm{K}}_4}{{}_3\rightleftharpoons }{\left[\mathrm{Cu}{\left({\mathrm{NH}}_3\right)}_4\right]}^{2+}\end{array}$

The value of stability constants K₁, K₂, K₃ and K₄ $\text{\hspace{0.17em}are\hspace{0.17em}}{10}^4,1.58\times {10}^3,5\times {10}^2\text{\hspace{0.17em}and\hspace{0.17em}}{10}^2$ respectively. The overall equilibrium constants for the dissociation of $[\mathrm{Cu}{\left({\mathrm{NH}}_3\right)}_4]$²⁺ is x × 10^–12. The value of x is ________.

(Rounded off to the nearest integer)

1. 2

2. 4

3. 3

4. 1

Given below are two statements :

1. Statement I is false but Statement II is true.

2. Both Statement I and Statement II are false.

3. Statement I is true but Statement II is false.

4. Both Statement I and Statement II are true.

Considering that ${∆}_0>P$, the magnetic moment (in BM) of $[Ru{\left(H_{2}O\right)}_6{]}^{2+}$ would be:
1. 0
2. 4.9
3. 6.9
4. 3.5

The values of the crystal field stabilization energies for a high spin d⁶ metal ion in octahedral and tetrahedral fields, respectively, are :

1. –0.4 ${∆}_0$ and –0.27 ${∆}_t$
2. –1.6 ${∆}_0$ and –0.4 ${∆}_t$
3. –0.4 ${∆}_0$ and –0.6 ${∆}_t$
4. –2.4 ${∆}_0$ and –0.6 ${∆}_t$

The d-electron configuration of [Ru(en)₃]Cl₂ and [Fe(H₂O)₆]Cl₂, respectively are :

1.  t_2g⁶ e_g⁰ and  t_2g⁴ e_g²
\(2.~ t_{2 g}^{4} e_{g}^{2}~ and ~t_{2 g}^{4} e_{g}^{2}\\ 3.~ t_{2 g}^{3} e_{g}^{3} ~and~ t_{2 g}^{4} e_{g}^{2}\\ 4.~ t_{2 g}^{4} e_{g}^{2} ~and~ t_{2 g}^{3} e_{g}^{3}\)