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Coordination Co...

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  • Question 1
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    Which is right combination?

    (a) Hydrate isomerism-$$[Co(H_2O)_3Cl_3]3H_2O$$ and $$[Co(H_2O)_6]Cl_3$$

    (b) Ionisation isomerism-$$[Co(NH_3)_5Br]SO_4$$ and $$[Co(NH_3)_5SO_4]Br$$

    (c) Geometrical isomerism-$$MCl_2Br_2$$ 

  • Question 2
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    In complexes of weak field ligands, $$\Delta_o < P$$ (pairing energy), the energy difference between $$t_{2g}$$ and $$e_g$$ sets is relatively less. Under the influence of strong field ligands, $$\Delta_o > P$$ (pairing energy), the energy difference between $$t_{2g}$$ and $$e_g$$ sets is relatively high.
    The correct statement regarding $$[Cr(en)_2Cl_2]^+$$ and $$[Co(C_2O_4)_2(NH_3)_2]^-$$ complex ions is :

  • Question 3
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    The d-orbitals, which are stabilized in an octahedral magnetic field, are :

  • Question 4
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    Maximum number of electrons in a subshell with l = 3 and n = 4 is :

  • Question 5
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    Directions For Questions

    A metal complex having composition $$Cr(NH_3)_4Cl_2Br$$ has been isolated in two forms, (X) and (Y). The form (X) reacts with $$AgNO_3$$ to give a white precipitate readily soluble in dilute aqueous ammonia, whereas (Y) gives a pale yellow precipitate soluble in concentrate ammonia.

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    Choose the correct statement regarding the complexes X and Y:
    (I)   Both complexes have the same six geometrical isomers.
    (II)  Both complexes have nearly the same conductivity in $$H_2O$$.
    (III) In both complexes, $$NH_3$$ is involved only to secondary valency.
    (IV) In both complexes, electronic configuration of $$t_{2g}$$ is same.

  • Question 6
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    Which of the following gives the maximum number of isomers ?

  • Question 7
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    Which chromium compound in widely used in training of leather?

  • Question 8
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    The total number of possible coordination isomer for the given compound $$[Pt(NH_3)_4Cl_2][PtCl_4]$$ is:

  • Question 9
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    $$[Cr(H_2O)_6]Cl_3$$  (atomic number of $$Cr=24$$) had a magnetic moment of $$3.83\ B.M.$$ The correct distribution of $$3d$$electrons in the chromium present in the complex is :

  • Question 10
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    Both geometrical and optical isomerisms are shown by :

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