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 |
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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 |
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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 |
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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 |
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Other than the X-ray diffractions, how could be the following pairs of isomers be distinguished from one another by;

CrNH36 CrNO26 and CrNH34NO22 CrNH32NO24
1.  Cryoscopic method

2.  Measurement of molar conductance

3.  Measuring magnetic moments

4.  Observing their colors

Subtopic:  Introduction, Classification and Nomenclature |
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The hybridizations of [Ni(CO)4] and [Cr(H2O)6]3+, respectively, are : 

1. sp3 and d3sp2

2. dsp2 and d2sp3

3. sp3 and d2sp3

4. dsp2  and sp3d2

Subtopic:  VBT, CFT & their Limitations |
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Which of the following is true about the complex PtCl2NH3OH2; [Atomic number of Pt = 78]

I.  It will have two geometrical isomeric forms, cis and trans

II.  The hybridization state of Pt(ll) is sp3

III.  It is a square planar complex

IV.  It is a diamagnetic complex

V.  It can show hydrate isomerism

VI.  It is a tetrahedral complex

1.  I, III, IV

2.  II, IV, V

3.  II, V, IV

4.  I, V, IV

Subtopic:  VBT, CFT & their Limitations |
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A metal ion has d6 configuration. In octahedral complex entity of low spin, the number of electrons present in eg set of orbitals will be

1. 6 2. 4
3. 0 4. 2
Subtopic:  VBT, CFT & their Limitations |
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Amongst NiCO4NiCN42- and [NiCl4]2- :

1.  NiCO4 and NiCl42- are diamagnetic and NiCN42- is paramagnetic.

2.  NiCl42- and NiCN42- are diamagnetic and NiCO4 is paramagnetic.

3.  NiCO4 and NiCN42- are diamagnetic and NiCl42- is paramagnetic.

4.  NiCO4 is diamagnetic and NiCl42- and NiCN42- are paramagnetic.

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Which of the following statements is correct?

a. [Ni(H2O)6]2+ and [Ni(NH3)6]2+ have the different values of CFSE.
b. [Ni(H2O)6]2+ and [Ni(NH3)6]2+ have the same value of the magnetic moment
c. [Ni(H2O)6]2+ and [Ni(NH3)6]2+ have the same hybridization of nickel


1.  a & c only

2.  b & c only

3.  a & b only

4. All of these

Subtopic:  VBT, CFT & their Limitations |
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