Coordination Chemistry - One Mark Questions

12th Standard EM

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Chemistry

Time : 00:30:00 Hrs
Total Marks : 15
    10 x 1 = 10
  1. A magnetic moment of 1.73BM will be shown by one among the following (NEET)

    (a)

    TiCl4

    (b)

    [CoCl6]4-

    (c)

    [Cu(NH3)4]2+

    (d)

    [Ni(CN)4]2-

  2. Crystal field stabilization energy for high spin d5 octahedral complex is

    (a)

    -0.6\(\triangle\)

    (b)

    0

    (c)

    2(P-\({ \Delta }_{ 0 }\))

    (d)

    2(P+\({ \Delta }_{ 0 }\))

  3. In which of the following coordination entities the magnitude of Δ0 will be maximum?

    (a)

    [Co(CN)6]3-

    (b)

    [Co(C2O4)]3-

    (c)

    [Co(H2O)6]3+

    (d)

    [Co(NH3)6]3+

  4. The total number of electrons donated by ligands to platinum ion in [Pt(en)2CI2] is

    (a)

    8

    (b)

    10

    (c)

    12

    (d)

    14

  5. Primary and secondary valencies of Cu in [Cu(NH3)4]SO4 is

    (a)

    4,4

    (b)

    2,4

    (c)

    4,1

    (d)

    4,2

  6. Structural formula of tetra aquadichlorideo Chromium (III) chloride.

    (a)

    [Cr(H2O)4Cl2]Cl2

    (b)

    [Cr(H2O)4Cl3]

    (c)

    [(H2O)4Cl2Cr]Cl2

    (d)

    [Cl2(H2O)4Cr]Cl3

  7. Which of the following octahedral complexes do not show geometrical isomerism?

    (a)

    [Co(NH3)3Cl3]

    (b)

    [PtCl2(NH3)4]

    (c)

    [Pt(NH3)2Cl2]

    (d)

    [Co(en)3]3+

  8. Co-ordination isomerism is exhibited by

    (a)

    [Cr(en)2Cl2]NO2

    (b)

    [Pt(NH3)4] [CuCl4]

    (c)

    [Cr(en)2Cl2]NO

    (d)

    [Co(NH3)5Cl]Cl2

  9. The spin only magnetic moment of [Mnfsr4]2- is 5.9 BM. Geometry of the complex ion is

    (a)

    Tetrahedral

    (b)

    Octahedral

    (c)

    Square planar

    (d)

    Pentagonal pyramidal

  10. [Fe(H2O)6]3+ and [Fe(CN)6]3- differ in

    (a)

    magnetic nature

    (b)

    co-ordination number

    (c)

    oxidation number

    (d)

    Structure

  11. 5 x 1 = 5
  12. Tin

  13. (1)

    Non - directional

  14. k - term

  15. (2)

    Stannate

  16. Zeisels salt

  17. (3)

    Ambidendate ligand

  18. Magnu's green salt

  19. (4)

    [pt(NH3)4] [ptCl4]

  20. Primary valences

  21. (5)

    k[PtCl3(C2H4)]

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