Quiz  /  Coordination Compounds Gate & PSU MCQ Questions With Answers

  • 1. 
    Octahedral has coordination number

  • 6
  • 4
  • 5
  • 3

  • 2. 
    This represents a complex of the geometry

  • octahedral
  • tetrahedral
  • square planar
  • none of these

  • 3. 
    Father of Coordination chemistry

  • Werner
  • Arrhenius
  • Einstein
  • Newton

  • 4. 
    The coordination compounds,[Co(NH3)6]3+, [Cr(CN)6]3- and [Cr(NH3)6]3+, [Co(CN)6]3- are examples of...

  • Linkage isomerism
  • Coordination isomerism
  • Ionization isomerism
  • Geometrical isomerism

  • 5. 
    Co-ordination compounds have great importance in biological systems. In this context, which statement is incorrect ?

  • Carboxypeptidase A is an enzyme and contains zinc
  • Haemoglobin is the red pigment of blood and contains iron
  • Cyanocobalmin is B-12 and contains cobalt
  • Chlorophylls are green pigments in plants and contain calcium

  • 6. 
    A molecule that cannot be superimposed on its mirror image is said to exhibit which of the following?

  • geometrical isomerism
  • optical isomerism
  • linkage isomerism
  • reactive isomerism

  • 7. 
    Among the following ions which one has the highest paramagnetism ?

  • [Cr(H2O)6]+3
  • [Fe(H2O)6]+2
  • [Cu(H2O)6]+2
  • [Zn(H2O)6]+2

  • 8. 
    The compound having lowest oxdation state of iron is

  • K4[Fe(CN)6]
  • K2FeO4
  • [Fe(CO)5]
  • K3[Fe(CN)6]

  • 9. 
    What is the coordination number of this complex?

  • 2
  • 3
  • 4
  • 6

  • 10. 
    [Cu(NH3)4]2+ has the following geometry

  • square planar
  • tetrahedral
  • octahedral
  • none of these

  • 11. 
    The type of isomerism shown by the complex [CoCl2(en)2] is

  • Geometrical isomerism
  • Coordination isomerism
  • Linkage isomerism
  • Ionization isomerism

  • 12. 
    Which of the following compounds shows optical isomerism?

  • [Cu(NH3)4]2+
  • [ZnCl4]2–
  • [Cr(C2O4)3]3–
  • [Co(CN)6]3–

  • 13. 
    Square planar has coordination number

  • 4
  • 6
  • 3
  • 2

  • 14. 
    The value of 'spin only' magnetic moment for one of the following configurations is 2.84 BM. The correct one is:

  • d4 (in strong field ligand in octahedral complexes)
  • d4 (in weak field ligand in octahedral complexes)
  • d3 (in weak as well as strong field ligand in octahedral complexes)
  • d5 (in strong field ligand in octahedral complexes)

  • 15. 
    Which among the following is not a complex compound?

  • Potassium ferricyanide
  • Cuprammonium hydroxide
  • Ferrous ammonium sulphate
  • Nickel tetracarbonyl

  • 16. 
    What is the correct formula for the complex ion: Tetraaquadichlorochromium(III) chloride?

  • [Cr(H2O)4Cl2]Cl
  • [Cr(H2O)3Cl3]Cl

  • 17. 
    Which of the following pairs represents linkage isomers?

  • [Pd(P Ph3)2 (NCS)2] and [Pd(P Ph3)2(SCN)2]
  • [Co (NH3)5 NO3]SO4 and [Co(NH3)5SO4] NO3
  • [Pt Cl2(NH3)4]Br2 and [PtBr2(NH3)4]Cl2
  • [Cu(NH3)4] [PtCl4] and [Pt(NH3)4] [CuCl4]

  • 18. 
    Which type of isomerism does it have?

  • Geometrical isomerism
  • Functional Group isomerism
  • Optical isomerism
  • Structural isomerism

  • 19. 
    Which of the following complexes can exhibit optical isomerism? (en = H2N–CH2–CH2–NH2 and is bidentate)

  • cis–Co(NH3)4Cl2
  • trans–Co(en)2Br2
  • cis–Co(en)2Cl2
  • Co(NH3)3Cl3
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