Which does not obey EAN rule?

1. [Cu(NH₃)₄]²⁺

2. [Zn(OH)₄]^2-

3. [HgI₄]^2-

4. Fe(CO)₅

The coordination number and oxidation state of Cr in K₃[Cr(C₂O₄)₃] are respectively

1. 3 and +3

2. 3 and 0

3. 6 and +3

4. 4 and +2

The octahedral complex will not show geometrical isomerism is :
(A and B are monodentate ligands)

1. [MA₄B₂]

2. [MA₅B]

3. [MA₂B₄]

4. [MA₃B₃]

According to IUPAC nomenclature sodium nitroprusside is named as

1. sodium pentacyanonitrosyl ferrate(II)

2. sodium pentacyanonitrosyl ferrate(III)

3. sodium nitroferricyanide

4. sodium nitroferrocyanide

The compound that is not  $\mathrm{\pi }$-bonded organometallic compound is :

1. K[PtCl₃(${\eta }^{\mathit{2}}$-C₂H₄)]

2. Fe(${\eta }^5$-C₅H₅)₂

3. Cr(${\eta }^6$-C₆H₆)₂

4. (CH₃)₄Sn

IUPAC name of [Pt(NH₃)₃(Br)(NO₂)Cl]Cl is:

Which of the following cation does not form an amine complex with excess of ammonia?

1. Ag⁺

2. Cu²⁺

3. Cd²⁺

4. Na⁺

The denticity of EDTA is:

The coordination number of cobalt in[Co(en)₂Br₂]Cl₂ is:

1. 2

2. 4

3. 6

4. 8

The correct IUPAC name of KAl(SO₄)₂.12H₂O is:

1. Aluminium potassium sulphate-12-water

2. Potassium aluminium(III)sulphate-12-water

3. Potassium aluminate(III)sulphatehydrate

4. Aluminium(III) potassium sulphate hydrate-12