The complex that can exhibit linkage isomerism is:

1.	[Co(NH3)5H2O]Cl3	2.	[Co(NH3)5(NO2)]Cl2
3.	[Co(NH3)5NO3](NO3)2	4.	[CO(NH3)5Cl]SO4

If an excess of ${\mathrm{AgNO}}_3$ solution is added to 100 mL of a 0.024 M solution of dichlorobis (ethylenediamine) cobalt (III) chloride, then the number of moles of AgCl that will be precipitated is:

Given the following pair of isomers:
[Cr(NH₃)₆][Cr(NO₂)₆] and
[Cr(NH₃)₄(NO₂)₂][Cr(NH₃)₂(NO₂)₄]
Aside from X-ray diffraction, how could the following pairs of isomers be distinguished from one another?

1. Cryoscopic method
2. Measuring their molar conductance
3. Measuring their magnetic moments
4. Observing their colors

For a tetrahedral complex [MCl₄]^2-, the spin-only magnetic moment is 3.83 B.M. The element M is:

1. Co

2. Cu

3. Mn

4. Fe

The geometry and magnetic properties of [NiCl₄]^2-, respectively, are : 

1. Tetrahedral, Paramagnetic

2. Tetrahedral, Diamagnetic

3. Square planar, Paramagnetic

4. Square planar, Diamagnetic  

The IUPAC name of $\left[\mathrm{Co}\left(\mathrm{ONO}\right){\left({\mathrm{NH}}_3\right)}_5\right]{\mathrm{Cl}}_2$ is:

1. Pentamminenitro-O-cobalt(II)chloride

2. Pentamminenitroso-O-cobalt(III)chloride  

3. Pentaamminenitrito-O-cobalt(III) chloride

4. Pentammineoxo-nitrocobalt(III)chloride

1. NO₃^- acts as a monodentate ligand.
2. The Ce atom has a coordination number of 12.
3. The shape of the complex ion is an icosahedron.
4. The solution is used as an oxidizing agent.

The total number of geometrical isomers possible for an octahedral complex of $\left[{\mathrm{MA}}_2{\mathrm{B}}_2{\mathrm{C}}_2\right]$ are:
(M = transition metal; A, B and C are monodentate ligands)

2.335 g of compound X (empirical formal CoH₁₂N₄Cl₃) upon treatment with excess AgNO₃ solution produces 1.435 g of a white precipitate. The primary and secondary valences of cobalt in compound X, respectively are:

[Given Atomic mass: Co = 59, Cl = 35.5, Ag = 108]

The geometry and the number of the unpaired electron(s) of \([MnBr_{4}]^{2-}\), respectively, are: