The correct increasing order of trans-effect of the following species is

1. NH3 > CN- > Br- > C6H5-

2. CN- > C6H5- > Br- > NH3

3. Br- > CN- >NH> C6H5-

4. CN- > Br- >C6H5- >NH3

 

 

Subtopic:  VBT, CFT & their Limitations |
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Jahn-Teller effect is not observed in high spin complexes of

1. d7

2. d8

3. d4

4. d9

Subtopic:  VBT, CFT & their Limitations |
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Which of the following has longest C-O bond length? (Free C-O bond length in CO is

1.128 Å.)

1. [Co(СО)4]-

2. [Fe(CO)4]2-

3. [Mn(CO)6]+

4. Ni(CO)4

Subtopic:  VBT, CFT & their Limitations |
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Which of the following statements is false?

1. Ca2+ ions are important in blood clotting

2. Ca2+ ions are not important in maintaining the regular beating of the heart

3. Mg2+ ions are important in the green parts of plants

4. Mg2+ ions form a complex with ATP

Subtopic:  Introduction, Classification and Nomenclature |
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The correct order of the stoichiometrics of AgCl formed when AgNO3 in excess is treated with the complexes:- CoCl3.6NH3, CoCl3.5NH3, CoCl3.4NH3, respectively, is :

1. 1 AgCl, 3 AgCl, 2 AgCl

2. 3 AgCl, 1 AgCl, 2 AgCl

3. 3 AgCl, 2 AgCl, 1 AgCl

4. 2 AgCl, 3AgCl,  1 AgCl

Subtopic:  Werner’s Theory |
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An example of a sigma bonded organometallic compound is:

1. Ruthenocene                 

2. Grignard's reagent

3. Ferrocene                     

4. Cobaltocene

Subtopic:  Ligands | VBT, CFT & their Limitations |
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An example of a sigma bonded organometallic compound is:

1. Grignard's reagent

2. Ferrocene

3. Cobaltocene

4. Ruthenocene

Subtopic:  Organometallic Complexes & their Uses |
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What is the correct increasing order for the wavelengths of absorption in complexes of Co3+?

1. [Co(H2O)6]3+ < [Co(en)3]3+ < [Co(NH3)6]3 +

2. [Co(H2O)6]3+ <  [Co(NH3)6]3+ <  [Co(en)3]3+

3. [Co(NH3)6]3+ < [Co(en)3]3+ < [Co(H2O)6]3+

4. [Co(en)3]3+ <  [Co(NH3)6]3+ < [Co(H2O)6]3+

Subtopic:  VBT, CFT & their Limitations |
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The correct increasing order of trans-effect of the following species is

1.  NH3>CN->Br>C6H5-

2.  CN->C6H5->Br->NH3

3.  Br->CN->NH3>C6H-5

4.  CN->Br->C6H-5>NH3

Subtopic:  Ligands |
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Jahn-Teller effect is not observed in high spin complexes of

1.  d7

2.  d8

3.  d4

4.  d9

Subtopic:  VBT, CFT & their Limitations |
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