The correct statement among the following about [Co(CN)6]3- is :

1. It has no unpaired electrons and will be in a low-spin configuration
2. It has four unpaired electrons and will be in a low-spin configuration
3. It has four unpaired electrons and will be in a high-spin configuration
4. It has no unpaired electrons and will be in a high-spin configuration

Subtopic:  VBT, CFT & their Limitations |
 77%
From NCERT
NEET - 2015
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The total number of possible isomers for the complex [Co(en)2Cl2]Cl are:
[en-ethylenediamine]

1. 2                         

2. 1

3. 3                         

4. 4

Subtopic:  Isomerism in Coordination Compounds |
 63%
From NCERT
NEET - 2015
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The hybridisation of Ni in the complex [Ni(CN)4]2- is:
(Atomic number of Ni = 28)

1. dsp2                               

2. sp3

3. d2sp2                             

4. d2sp3

Subtopic:  VBT, CFT & their Limitations |
 81%
From NCERT
NEET - 2015
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The sum of coordination number and oxidation number of the metal M in the complex M(en)2(C2O4)]Cl (where, en is ethylenediamine) is : 

1. 9

2. 6

3. 7

4. 8

Subtopic:  Introduction, Classification and Nomenclature | Ligands |
 59%
From NCERT
NEET - 2015
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The name of complex ion, [Fe(CN)6]3- is :-

1. hexacyanoiron (III) ion

2. hexacyanitoferrate (III) ion

3. tricyanoferrate (III) ion

4. hexacyanidoferrate (III)ion

Subtopic:  Introduction, Classification and Nomenclature |
 69%
From NCERT
NEET - 2015
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Among the following complexes, the one which shows zero crystal field stabilisation

energy (CFSE) is:-

1. [Mn(H2O)6]3+

2. [Fe(H2O)6]3+

3. [Co(H2O)6]2+

4. [Co(H2O)6]3+

 

Subtopic:  VBT, CFT & their Limitations |
 64%
From NCERT
NEET - 2014
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The complex that is used as an anticancer agent is:

1. mer-[Co(NH3)3Cl3         

2. cis-[PtCl2(NH3)2]

3. cis-K2[PtCl2 Br2]           

4. Na2CoCl4

Subtopic:  Introduction, Classification and Nomenclature |
 87%
From NCERT
NEET - 2014
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A magnetic moment of 1.73 BM will be shown by one among the following

1. [Cu(NH3)4]2+      

2. [Ni(CN)4]2-

3. TiCl                 

4. [CoCl6]4-

Subtopic:  VBT, CFT & their Limitations |
 74%
From NCERT
NEET - 2013
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Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?

1. [Ni(NH3)6]2+                 

2. [Zn(NH3)6]2+

3. [Cr(NH3)6]3+                 

4. [Co(NH3)6]3+

Subtopic:  VBT, CFT & their Limitations |
 56%
From NCERT
NEET - 2012
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The d-electron configurations of Cr2+, Mn2+, Fe2+ and CO2+ are d4, d5, d6 and d7

respectively. Which one of the following will exhibit minimum paramagnetic behaviour?

(At. no. Cr = 24, Mn =25, Fe=26, CO=27)

1. [Fe(H2O)6]2+

2. [Co(H2O)6]2+

3. [Cr(H2O)6]2+

4. [Mn(H2O)6]2+

Subtopic:  VBT, CFT & their Limitations |
 71%
From NCERT
NEET - 2011
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