When 0.1 mol of CoCl₃(NH₃)₅ is treated with an excess of AgNO₃, 0.2 mol of AgCl is obtained. The conductivity of the solution will correspond to:

1.	1:3 electrolyte	2.	1:2 electrolyte
3.	1:1 electrolyte	4.	3:1 electrolyte

The most stable complex species is : 

1. $\left[\mathrm{Fe}{\left(\mathrm{CO}\right)}_5\right]$

2. ${\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]}^{3-}$

3. ${\left[\mathrm{Fe}{\left({\mathrm{C}}_2{\mathrm{O}}_4\right)}_3\right]}^{3-}$

4. ${\left[\mathrm{Fe}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{+3}$

Among the following species, the one that is not expected to be a ligand is:

The correct statements about ethane-1,2-diamine as a ligand are:

[Cr(H₂O)₆]Cl₃ and [Cr(H₂O)₅Cl₂]Cl.H₂O are examples of:

Number of geometrical isomer(s) possible for the complex [Cr(C₂O₄)₃]^3- is/are:

Aqueous copper sulphate solution gives a green precipitate of A with aqueous potassium fluoride. What would be the correct molecular formula of A?
1. [CuF₆]^3–
2. [CuF₄]^2–
3. [CuF₂]^–
4. [CuF₅]^4–

The hybridisation of [FeF₆]^3- is: