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Discuss the nature of bonding in the fol...

Discuss the nature of bonding in the following coordination entities on the basis of valence bond theory:
(i). `[Fe(CN)_6]^(4-)`
(ii). `[FeF_6]^(3-)`
(iii). `[Co(C_2O_4)_3]^(3-)`
(iv). `[CoF_6]^(3-)`

Text Solution

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To discuss the nature of bonding in the given coordination entities based on Valence Bond Theory (VBT), we will analyze each compound step by step. ### (i) `[Fe(CN)_6]^(4-)` 1. **Determine the Oxidation State of Iron (Fe)**: - The charge of the complex is -4. - Let the oxidation state of Fe be \( x \). - The cyanide ion (CN^-) has a charge of -1, and there are 6 cyanide ligands. ...
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Among the following, the most stable complex is (i). [Fe(H_2O)_6]^(3+) (ii). [Fe(NH_3)_6]^(3+) (iii). [Fe(C_2O_4)_3]^(3-) (iv). [FeCl_6]^(3-)

Describe the formation of HF and NH_3 molecules on the basis of valence bond theory.

Knowledge Check

  • Arrange the following in increasing value of magnetic moments. (i) [Fe(Cn)_6]^(4-) (ii) [Fe(CN)_6]^(3-) (iii) [Cr(NH_3)_6]^(3+) (iv) [Ni(H_2O)_4]^(2+)

    A
    `ilt ii lt iii lt iv`
    B
    `iltiiltivltiii`
    C
    `iiltiii ltiltiv`
    D
    `iii ltilt ii ltiv`

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    Specify the oxidation numbers of the metals in the following coordination entities: (i). [Co(H_2O)(CN)(en)_2]^(2+) (ii). [CoBr_2(en)_2]^(o+) (iii). [PtCl_4]^(2-) (iv). K_3[Fe(CN)_6] (v). [Cr(NH_3)_3Cl_3]

    Increasing order EAN of the metals in [Ni(CN)_(4)]^(2-) (II) [Fe(CN)_(6)]^(3-) (III) [Cu(CN)_(4)]^(3-) is .

    Amongst the following , the most stable complex is : (a) [Fe(H_(2)O)_(6)]^(3+) (b) [Fe(NH_(3))_(6)]^(3+) (c) [Fe(C_(2)O_(4))_(3)]^(3-) (d) [FeCl_(6)]^(3-) .

    Give the electronic configuration of the following complexes on the basis of crystal field splitting theory. [CoF_(6)]^(3-), [Fe(CN)_(6)]^(4-) and [Cu(NH_(3))_(6)]^(2+) .

    Name of following coordinatin entities and describe their structures : (i) [Fe(CN)_(6)]^(4-) (ii) [Cr(NH_(3))_(4)Cl_(2)]^(+) (iii) [Ni(CN)_(4)]^(2-) [Atomic number Fe = 26 , Cr = 24 , Ni = 28]

    Name the following coordination entities and draw the structures of their stereoisomers : (i) [Co(en)_(2)Cl_(2)]^(+) (en = ethane-1,2-diamine (ii) [Cr(C_(2)O_(4))_(3)]^(3-) (iii) [ Co(NH_(3))_(3)Cl_(3)] (Atomic number Cr = 24 , Co = 27)

    The magnetic moment of complex given below are in the order: (I) [Ni(CO)_(4)] (II) [Mn(CN)_(6)]^(4-) (III) [Cr(NH_(3))_(6)]^(3+) (IV) [CoF_(6)]^(3-)

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