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Property  \([CO(NH_3)_6Cl_3] \) \( [Co(NH_3)_6Cl_2]\)
1.  Stability   → More  Less
2.  Magnetism  → Paramagnetic Diamagnetic
3.  Hybridization  → \(\mathrm{sp}^3 \mathrm{~d}^2\) \(\mathrm{d}^2 \mathrm{sp}^3\)
4.  Complex  → outer orbital  inner orbital

Subtopic:  VBT, CFT & their Limitations |
 62%
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NiPPh34 and NiCl42-have geometry, hybridization and magnetic moments of the ions respectively

1.  Tetrahedral, tetrahedral; sp3, sp3; O, 2.82

2.  Tetrahedral, square planar; sp3, dsp2; O, 2.82

3.  Tetrahedral, octahedral; sp3, d2sp3; 2.82, O

4.  Square planar, tetrahedral; dsp2, sp3; 2.82, 2.82

Subtopic:  VBT, CFT & their Limitations |
 65%
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The geometries of [Ni(CO)4] and are [Ni(PPh3)2Cl2]  : 

1. Both square planar.

2. Tetrahedral and square planar, respectively.

3. Both tetrahedral.

4. Square planar and tetrahedral, respectively.

Subtopic:  VBT, CFT & their Limitations |
 51%
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Which one of the following high spin complexes has the largest crystal field stabilization energy?

1.  CrH2O62+

2.  CrH2O63+

3.  MnH2O62+

4.  MnH2O63+

Subtopic:  VBT, CFT & their Limitations |
 53%
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It is an experimental fact that DMG + Ni(ll)salt + NH4OH  Red precipitate Which of the following is wrong about this red precipitate?

(1)  It is a non-ionic complex

(2)  It has a square planar geometry

(3)  It has tetrahedral geometry

(4)  It is a diamagnetic complex

Subtopic:  VBT, CFT & their Limitations |
 63%
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According to Crystal Field Theory (CFT), the compound, among the following, that forms a colored complex is:

1. [Ti(H2O)6]4+
2. [Cr(NH3)6]3+
3. K[V(F)6]
4. (NH4)2[TiCl6]

Subtopic:  VBT, CFT & their Limitations |
 81%
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Among i. [Co(NH3)6]CI3 , ii. [Ni(NH3)6]CI2 , iii. Cr(H2O)6]CI3 , iv. [Fe(H2O)6]CI2, the diamagnetic complex is-

1. i

2. ii

3. iii

4. iv

Subtopic:  VBT, CFT & their Limitations |
 68%
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For which of the following complexes IUPAC names is not correctly assigned?

1.  NaPtNH3BrClNO2-Sodium amminebromidochlorido nitrito-N-pIatinate(II)

2.  CuCl2O = CNH222-Dichlorobis (dicarboxido tetraamine) copper (II)

3.   PtCl3η2 - C2H4- —Trichlorido (η2 — ethylene) platinate(ll) ion

4.  FeClCN4O24-—Chloridotetracynosuperoxoferrate (II) ion

Subtopic:  Introduction, Classification and Nomenclature |
 50%
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The Crystal Field Stabilization Energy (CFSE) and the spin-only magnetic moment in Bohr Magneton (BM) for the complex K3FeCN6 are, respectively,

1.  0.00 and 35 BM

2.  -2.00 and 3 BM

3.  -0.40 and 24 BM

4.  -2.40 and 0 BM

Subtopic:  VBT, CFT & their Limitations |
 70%
From NCERT
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Zn2+ + 4NH3  ZnNH342+. the concentration of free Zn2+ ions in a solution of the complex ion ZnNH342+ can be increased significantly by the addition of

1.  H2O

2.  HCl(aq)

3.  NH3aq

4.  NH4Claq

Subtopic:  Introduction, Classification and Nomenclature |
 52%
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