[CoCl₂(NH₃)₄]⁺ + Cl^- → [CoCl₃(NH₃)₃] + NH₃
If in the above reaction, only one isomer of the product is obtained, then which of the following statement is true for the initial (reactant) complex?

1. Compound is in cis form.

2. Compound is in trans form.

3. compound is in both (cis and trans) forms.

4. Can't be predicted.

The electronic configuration that represents the maximum magnetic moment is:

1. $d^3$

2. $d^2$

3. $d^8$

4. $d^6$(high spin)

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

The correct order of energies of d-orbitals of metal ions in a square planar complex is:

1. ${\mathrm{d}}_{\mathrm{xy}}={\mathrm{d}}_{\mathrm{yz}}={\mathrm{d}}_{\mathrm{zx}}>{\mathrm{d}}_{{\mathrm{x}}^2-{\mathrm{y}}^2}={\mathrm{d}}_{{\mathrm{z}}^2}$

2. ${\mathrm{d}}_{{\mathrm{x}}^2-{\mathrm{y}}^2}={\mathrm{d}}_{{\mathrm{z}}^2}>{\mathrm{d}}_{\mathrm{xy}}={\mathrm{d}}_{\mathrm{yz}}={\mathrm{d}}_{\mathrm{zx}}$

3. ${\mathrm{d}}_{{\mathrm{x}}^2-{\mathrm{y}}^2}>{\mathrm{d}}_{{\mathrm{z}}^2}>{\mathrm{d}}_{\mathrm{xy}}>{\mathrm{d}}_{\mathrm{yz}}={\mathrm{d}}_{\mathrm{zx}}$

4. ${\mathrm{d}}_{{\mathrm{x}}^2-{\mathrm{y}}^2}>{\mathrm{d}}_{\mathrm{xy}}>{\mathrm{d}}_{{\mathrm{z}}^2}>{\mathrm{d}}_{\mathrm{zx}}={\mathrm{d}}_{\mathrm{yz}}$

How many unpaired electrons are present in the complex ion [Cr(NH₃)₆]³⁺?

Which of the following complex ions is Bronsted-Lowry acid?

1. [Cu(NH₃)₄]²⁺

2. [FeCl₄]^-

3. [Fe(H₂O)₆]³⁺

4. [Zn(OH)₄]^2-

1. [Co(en)₃][Cr(C₂O₄)₃]
2. [Cu(NH₃)₄][CuCl₄]
3. [Ni(en)₃][Co(NO₂)₆]

Which type of isomerism is exhibited by the coordination complex [Co(EDTA)]⁻?

1. Both optical and geometrical isomerism

2. Geometrical isomerism.

3. Optical isomerism.

4. Neither optical nor geometrical isomerism

How many geometrical isomers are possible for the coordination complex [Pd(NH₂–CH(CH₃)–COO)₂]?

1. Two (2) geometrical isomers

2. Three (3) geometrical isomers

3. Four (4) geometrical isomers

4. Six (6) geometrical isomers

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-