The total number of geometrical isomers possible for an octahedral complex of this type MA2B2C2 is 

(M = transition metal; A, B and C are monodentate ligands)

1.  3

2.  4

3.  5

4.  6

Subtopic:  Isomerism in Coordination Compounds |
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The IUPAC name of CoONONH35Cl2 is:

1. Pentamminenitro-O-cobalt(II)chloride

2. Pentamminenitroso-O-cobalt(III)chloride  

3. Pentaamminenitrito-O-cobalt(III) chloride

4. Pentammineoxo-nitrocobalt(III)chloride

Subtopic:  Introduction, Classification and Nomenclature |
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The metal carbonyl which is paramagnetic is

1. NiCO4

2. VCO6

3. CrCO6

4. FeCO5

Subtopic:  VBT, CFT & their Limitations |
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When any solution passes through a cation exchange resin that is in acidic form,H+ ion of the resin is replaced by cations of the solution. A solution containing 0.319 g of an isomer with molecular formula CrCl3.6H2O is passed through a cation exchange resin in acidic form. The eluated solution requires 19 cm3 of 0.125 N NaOH. The isomer is
 
1.  Triaquatrichloro chromium(lll) chloride trihydrate
 
2.  Hexaaqua chromium(lll) chloride
 
3.  Pentaaquamonochloro chromium(lll) chloride monohydrate
 
4.  Tetraaquadichloro chromium(lll) chloride dehydrate
Subtopic:  Introduction, Classification and Nomenclature |
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Which of the following statements about ammonium cerium (IV) nitrate, NH42CeNO36 is false ?  
1.  NO3- acts as a monodentate ligand.
 
2.  The Ce atom has a coordination number of 12.
 
3.  The shape of the complex ion is an icosahedron.
 
4.  The solution is used as an oxidizing agent.
Subtopic:  Ligands |
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Which one of the following reactions is correct?

1.  [Fe(CO)5]+2NO[Fe(CO)2(NO)2]+3CO

2.  [Fe(CO)5]+2NO[Fe(CO)3(NO)2]+2CO

3.  [Fe(CO)5]+3NO[Fe(CO)2(NO)3]+3CO

4. [Fe(CO)5]+3NO[Fe(CO)3(NO)3]+2CO

Subtopic:  Ligands |
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How many isomers are possible for complex Coox2Cl2+?

1.  1

2.  3

3.  2

4.  4

 

Subtopic:  Isomerism in Coordination Compounds |
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Hybridization and geometry of NiCN42- are

1.  sp2d and tetrahedral

2.  sp3 and square planar

3.  sp3 and tetrahedral

4.  dsp2 and square planar

Subtopic:  VBT, CFT & their Limitations |
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Among the following complexes, the one that can exist as facial (fac) and meridional (mer) isomers is

1.  CoNO23NH33

2.  K3FeCN6

3.  CoH2O2NH34CI3

4.  CoClNH35CI  

Subtopic:  Isomerism in Coordination Compounds |
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 Among i Cren33+, ii trans-Cren2Cl2+, iii cis-Cren2Cl2+, iv CoNH34Cl+, the optically activecomplexes are

1.  (i) and (ii)

2.  (i) and (iii)

3.  (ii) and (iii)

4.  (ii) and (iv)

Subtopic:  Isomerism in Coordination Compounds |
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