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12th Chemistry - Coordination Chemistry Model Question Paper 1 8682895000 Jan-06 , 2020

Coordination Chemistry

12th Chemistry - Coordination Chemistry Model Question Paper 1

Coordination Chemistry Model Question Paper 1

12th Standard

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Chemistry

Time : 01:00:00 Hrs
Total Marks : 50
    5 x 1 = 5

  1. IUPAC name of the complex K3[Al(C2O4)3] is _______.

    (a)

    potassiumtrioxalatoaluminium(III)

    (b)

    possiumtrioxalatoaluminate(II)

    (c)

    potassiumtrisoxalatoaluminate(III)

    (d)

    potassiumtrioxalatoaluminate(III)

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

    (a)

    -0.6\({ \Delta }_{ 0 }\)

    (b)

    0

    (c)

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

    (d)

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

  3. Which one of the following pairs represents linkage isomers?

    (a)

    [Cu(NH3)4][PtCl4] and [Pt(NH3)4][CuCl4]

    (b)

    [Co(NH3)5(NO3)]SO4 and [Co(NH3)5(ONO)]

    (c)

    [Co(NH3)4(NCS)2]Cl and [Co(NH3)4(SCN)2]Cl

    (d)

    both (b) and (c)

  4. 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

  5. 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

    6. 5 x 2 = 10

  6. Ni2+ is identified using alcoholic solution of dimethyl glyoxime. Write the structural formula for the rosy red precipitate of a complex formed in the reaction.

  7. Draw all possible geometrical isomers of the complex [Co(en)2Cl2]+ and identify the optically active isomer.

  8. What is the coordination number of central metal ion in [Fe(C2O4)3]3-?

  9. Write the IUPAC name of [Ag(NH3)2]Cl.

  10. Give an example for the complexes possessing co-ordination number 8 and 7

    11. 5 x 3 = 15

  11. What is linkage isomerism? Explain with an example.

  12. Write the postulates of Werner’s theory.

  13. Why tetrahedral complexes do not exhibit geometrical isomerism.

  14. What is meant by unidentate, didentate and ambidentate Iigandst Give two examples for each.

  15. Draw and explain the structure of Cisplatin.

    16. 4 x 5 = 20

  16. On the basis of VB theory explain the nature of bonding in [Co(C2O4)3]3-

  17. Write the oxidation state, coordination number , nature of ligand, magnetic property and electronic configuration in octahedral crystal field for the complex K4[Mn(CN)6]

  18. What are the main assumptions of Valence Bond Theory? Explain.

  19. How are metal carbonyls classified depending on the number of metal atoms?

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