The IUPAC name of [\(\mathrm {C r \left(en\right)_{3}}\)]\(\mathrm{C l}_{3}\)${\mathrm{}}_{}$ is:

1.	Triethylenediaminechromium (III) chloride
2.	Tris(ethylenediammine)chromium (II) chloride
3.	Tris(ethylenediammine)chromium (III) chloride
4.	Tris(ethylenediamine)chromium (II) chloride

The crystal field stabilization energy (CFSE) for [CoCl₆]^4– is 18000 cm^–1.
The CFSE for [CoCl₄]^2–  will be:

1. $6000$ $c{m}^{-1}$

2. $16000$ $c{m}^{-1}$

3. $18000$ $c{m}^{-1}$

4. $8000$ $c{m}^{-1}$

The electronic configuration that represents the maximum magnetic moment is:

1. $d^3$

2. $d^2$

3. $d^8$

4. $d^6$(high spin)

Spin-only magnetic moments of [Fe(NH₃)₆]³⁺ and [FeF₆]^3-  in BM are, respectively :

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 expected number of unpaired electrons for the complex ion [Cr(NH₃)₆]³⁺ are: 

1. 2

2. 3

3. 4

4. 5

The complex that contains only one unpaired electron is:

1. [CoF₆]^3-

2. [Co(C₂O₄)₃]^3-

3. [Fe(CN)₆]^3-

4. [MnCl₆]^3-

The complex that can exhibit linkage isomerism is:

The low spin complex among the following is:

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