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Coordination Compounds Test - 7

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Coordination Compounds Test - 7
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  • Question 1
    1 / -0

    How many ions are produced from [Co(NH3)6]Cl3 in solution?

    Solution

    The complex ionizes as: [Co(NH3)6]Cl3 ⇌ [Co(NH3)6]3+ + 3Cl-
    Therefore, four ions are produced per mole of the complex.

     

  • Question 2
    1 / -0

    Which of the following complexes is non-conducting?

    Solution

    The complex [CoCl3(NH3)3] is non-ionic.

     

  • Question 3
    1 / -0

    Which of the following has the highest molar conductivity?

    Solution

    K4[Fe(CN)6] produces maximum number of ions (five) in the solution and therefore, will have the highest molar conductivity.

     

  • Question 4
    1 / -0

    Which of the following complexes will give white precipitate with barium chloride solution?

    Solution

    BaCl2 will precipitate SO42- ion present outside the coordination sphere in [Cr(NH3)5Cl]SO4.

     

  • Question 5
    1 / -0

    Which of the following complexes are homoleptic?

    a. [Co(NH3)6]3+
    b. [Co(NH3)4Cl2]+
    c. [Ni(CN)4]2-
    d. [Ni(NH3)4Cl2]

    Solution

    Complexes in which a metal is bound to only one kind of donorgroups, e.g. [Co(NH3)6]3+ and [Ni(CN)4]2-, are known as homoleptic.

     

  • Question 6
    1 / -0

    The correct IUPAC name of [Pt(NH3)2Cl2] is

    Solution

    The correct IUPAC name of [Pt(NH3)2Cl2] is diamminedichloridoplatinum (II).

     

  • Question 7
    1 / -0

    What kind of isomerism exists between [Cr(H2O)6]Cl3 (violet) and [Cr(H2O)5Cl]Cl2. H2O (grayish-green)?

    Solution

    The compounds which have the same molecular formula but differ by whether or not a solvent is directly bonded to the metal ion or merely present as free solvent molecules in the crystal lattice are called solvate isomers.

     

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