The crystal field stabilization energy (CFSE) for [CoCl6]4- is 18000 cm-1.
The CFSE for [CoCl4]2-  will be:

1. 6000 cm-1

2. 16000 cm-1

3. 18000 cm-1

4. 8000 cm-1

Subtopic:  VBT, CFT & their Limitations |
 68%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

What is the correct electronic configuration of the central atom in K4FeCN6 based on crystal field theory:

1. e4 t2g  2

2. t2g  4 eg2

3. t2g  6 eg0

4. e3 t2g 3

Subtopic:  VBT, CFT & their Limitations |
 78%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

[Cr(H2O)6]Cl3 (At. No. of Cr = 24) has a magnetic moment of 3.83 BM. 
​​​​The correct distribution of 3electrons in the chromium of the complex is:

1. 3dx2-y213dz213dxy1

2. 3dxy13dx2-y213dyz1

3. 3dxy13dzy13dxz1

4. 3dxy13dyz13dz21

Subtopic:  VBT, CFT & their Limitations |
 67%
From NCERT
AIPMT - 2006
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

[Co(NH3)4(NO2)2]Cl exhibits:

1. linkage isomerism, ionization isomerism, and optical isomerism
2. linkage isomerism, ionization isomerism, and geometrical isomerism
3. ionization isomerism, geometrical isomerism, and optical isomerism
4. linkage isomerism, geometrical isomerism, and optical isomerism

Subtopic:  Isomerism in Coordination Compounds |
 69%
From NCERT
AIPMT - 2006
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A pair that contains both the ions coloured in an aqueous solution is:

(At. no. : Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co = 27)

1. \(N i^{2+}, T i^{3+} \) 2. \(S c^{3+}, T i^{3+} \)
3. \(\mathrm{Sc}^{3+}, \mathrm{Co}^{2+} \) 4. \(\mathrm{Ni}^{2+}, \mathrm{Cu}^{+}\)
Subtopic:  VBT, CFT & their Limitations |
 73%
From NCERT
AIPMT - 2006
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The compound that gives a pair of enantiomorphs is:
(en = NH2 CH2CH2 NH2)

1. [Co(NH3)4Cl2]NO2

2. [Cr(NH3)6][Co(CN)6]

3. [Co(en)2Cl2]Cl

4. [Pt(NH3)4][PtCl6]

Subtopic:  Isomerism in Coordination Compounds |
 73%
From NCERT
AIPMT - 2007
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

CFSE (in the octahedral field) will be maximum in:
(Atomic number Co = 27)

1. CoH2O63+

2. CoNH363+

3. CoCN63-

4. CoC2O433-

Subtopic:  Ligands |
 68%
From NCERT
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following complexes has the highest paramagnetic behaviour?

(where gly = glycine, en = ethylenediamine, ox = oxalate ion and bpy = bipyridyl moieties )
(At no : Ti= 22, V = 23, Fe = 26, Co = 27)

1. [V(gly)2(OH)2(NH3)2]+

2. [Fe(en)(bpy)(NH3)2]2+

3.  [Co(ox)2(OH)2]-

4. [Ti(NH3)6]3+

Subtopic:  Ligands | VBT, CFT & their Limitations |
 51%
From NCERT
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Out of TiF62-CoF63-, Cu2Cl2 and NiCl42-(Z of Ti = 22, Co=27, Cu = 29, Ni= 28) the colourless species are:

1. TiF62- and CoF63-

2. Cu2Cl2 and NiCl42-

3. TiF62- and Cu2Cl2

4. CoF63- and NiCl42-

Subtopic:  Introduction, Classification and Nomenclature |
 76%
From NCERT
AIPMT - 2009
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A complex  ion among the following can absorb visible light is:
(At. no. Zn = 30, Sc = 21, Ti = 22, Cr = 24)

1. [Sc(H2O)3(NH3)3]3+

2. [Ti(en)2 (NH3)2]4+

3. [Cr(NH3)6]3+

4. [Zn(NH3)6]2+

Subtopic:  Introduction, Classification and Nomenclature | Ligands |
 74%
From NCERT
AIPMT - 2009
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh