An aqueous solution of titanium chloride, when subjected to magnetic measurement, measured to zero magnetic moment. Assuming the octahedral complex in aqueous solution, the formula of the complex is :

(a) [Ti(H2O)6]Cl2                            (b) [Ti(H2O)6]Cl4

(c) [TiCl3(H2O)3]                             (d) [TiCl2(H2O)4]

Subtopic:  VBT, CFT & their Limitations |
 76%
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Which of the following pairs of complexes are isomeric with each other but their aqueous solutions exhibit different molar conductivities?

(a) [PtCl2(NH3)4]Br2  and  [PtBr2(NH3)4]Cl2 

(b) [CoCl2(NH3)4]NO2 and  [CoCl(NO2)(NH3)4]Cl

(c) [Co(NO2)(NH3)5]Cl2  and [Co(ONO)(NH3)4]Cl2

(d) [CoBr(NH3)5]SO4 and [Co(SO4)(NH3)5]Br

Subtopic:  Isomerism in Coordination Compounds |
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The two compounds pentaamminesulphatocobalt (III) bromide and pentaamminesulphatocobalt (III) chloride represent :

(1) Linkage isomerism                   

(2) Ionization isomerism

(3) Coordination isomerism             

(4) No isomerism 

Subtopic:  Isomerism in Coordination Compounds |
 57%
From NCERT
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Select the correct code about complex [Cr(NO2)(NH3)5][ZnCl4] :

(I) IUPAC name of the compound is pentaamminenitrito-N-chromium(III) tetrachlorozincate(II)
(II) It shows geometrical isomerism
(III) It shows linkage isomerism
(IV) It shows coordination isomerism
 
1. III, IV 2. I, III and IV
3. II, III and IV 4. I, II, III and IV
Subtopic:  Introduction, Classification and Nomenclature |
 61%
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In the isoelectronic series of metal carbonyl, the CO bond strength is expected to increase in the order:

(1) [Mn(CO)6]+<[Cr(CO)6]<[V(CO)6]-

(2) [V(CO)6]-<[Cr(CO)6]<[Mn(CO)6]+

(3) [V(CO)6]-<[Mn(CO)6]+<[Cr(CO)6]

(4) [Cr(CO)6]<[Mn(CO)6]+<[V(CO)6]-

Subtopic:  VBT, CFT & their Limitations |
 64%
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Which is not true about metal carbonyls?

(1)  Here CO acts as a Lewis base as well as Lewis acid 

(2) Here metal acts as Lewis base as well as Lewis acid 

(3) Here - back bonding takes place

(4) Here - back bonding takes place

Subtopic:  Ligands |
 57%
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[Fe(H2O)6]2+ and [Fe(CN)6]4-  differ in:

1. Geometry and magnetic moment.

2. Geometry and hybridization.

3. Magnetic moment and colour.                       

4. Hybridization and number of d-electrons.

Subtopic:  VBT, CFT & their Limitations |
 55%
From NCERT
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Which of the following complexes have a maximum number of unpaired electrons?

(a) [Ni(CO)4]                                (b) [Co(NH3)4(NO2)2]+

(c) [Ag(CN)2]-                              (d) [CuBr4]2-

Subtopic:  VBT, CFT & their Limitations |
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The degeneracy of d-orbitals is lost under:

(I) Strong field ligand                 (II) Weak field ligand

(III) Mixed field ligand                 (IV) Chelate

Choose the correct code:

(1) I,II and IV                                 

(2) I and II

(3) I,II,III and IV                             

(4) I,II and III

Subtopic:  Ligands |
 51%
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Which of the following isomerism, exhibited by [CrCl2(OH)2(NH3)2]?

(1)Ionization     

(2) Geometrical

(3) Hydrate       

(4) Linkage

Subtopic:  Isomerism in Coordination Compounds |
 79%
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