From the stability constant (hypothetical  values)given below, predict which is the strongest ligand?

1. Cu2++4NH3[Cu(NH3)4]2+;(k=4.5x1011)

2. Cu2++4CN[Cu(CN)4]2-;(K=2.0x1027)

3. Cu2++2en[Cu(en)2]2+;(K=3.0x1015)

4. Cu2++4H2O[Cu(H2O)4]2+;(K=9.5x108)

Subtopic:  VBT & CFT & their Limitations |
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Which does not obey EAN rule?

1. [Cu(NH3)4]2+

2. [Zn(OH)4]2-

3. [HgI4]2-

4. Fe(CO)5

Subtopic:  E.A.N |
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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

Subtopic:  Werner’s Theory |
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Which one of the following octahedral complexes will not show geometrical isomerism?(A and B are monodentate ligands)

1. [MA4B2]

2. [MA5B]

3. [MA2B4]

4. [MA3B3]

Subtopic:  Isomerism in Coordination Compounds |
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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

Subtopic:  VBT & CFT & their Limitations |
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Amoung the following which is not the π-bonded organomettalic compound?

1. K[PtCl3(η2-C2H4)]

2. Fe(η5-C5H5)2

3. Cr(η6-C6H6)2

4. (CH3)4Sn

Subtopic:  Organometallic Complexes & their Uses | VBT & CFT & their Limitations |
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IUPAC name of [Pt(NH3)3 (Br)(NO2)Cl]Cl is

1. triamminebromidochloridonitroplatinum(IV)Chloride

2. triamminebromonitrocholoroplatinum(IV)Chloride

3. triamminechlorobromonitroplatinum(IV)Chloride

4. triamminenitrochlorobromoplatinum(IV)Chloride

Subtopic:  Coordination comp,Introduction and Classification / Nomenclature |
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Which of the following cation does not form an ammine complex with excess of ammonia?

1. Ag+

2. Cu2+

3. Cd2+

4. Na1+

Subtopic:  Coordination comp,Introduction and Classification / Nomenclature |
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What is the denticity of EDTA?

1. Monodentate

2. Hexadentate

3. Bidentate

4. Tridentate

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

1. 2

2. 4

3. 6

4. 8

Subtopic:  Werner’s Theory |
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