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In coordination chemistry there are a ve...

In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of reaction, the formula0 of the complex can be predicted. An isomers of the complex `Co(en)_(2)(H_(2)O)Cl_(2)Br`, on reaction with concentrated `H_(2)SO_(4)` (dehydrating agent ) it suffers loss in weight and on reaction with `AgNO_(3)` solution it gives a white precipitate which is soluble in `NH_(3)(aq)`.
The correct formula of the complex is :

A

`[CoCIBr(en)_(2)]H_(2)O`

B

`[CoCl(en)_(2)(H_(2)O)]BrCl`

C

`[CoBr(en)_(2)(H_(2)O)]Cl_(2)`

D

`[CoBrCl(en)_(2)]Cl.H_(2)O`

Text Solution

Verified by Experts

(D), As it suffer loss in weight with `H_(2)SO_(4)` . Ionization sphere contains `H_(2)O` molecules . As complex also give white ppt. with `AgNO_(3)` , the isnization sphere should contain `Cl^(-)` ion. So formula may be `[CoBrCl(en)_(2)]Cl.H_(2)O`.
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In coordination chemistry there are a variety of methods applied to find out the structure of complexes.One method involves treating the complex with known reagents and from the nature of reaction, the formula of the complex can be predicted.An isomer of the complex Co(en)_2(H_2O)Cl_2Br ,on reaction with concentrated H_2SO_4 (dehydrating agent) it suffers loss in weight and on reaction with AgNO_3 solution it gives a white precipitate which is soluble in NH_3 (aq). The correct formula of the complex is :

In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of reaction, the formula0 of the complex can be predicted. An isomers of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent ) it suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . If all the ligands in the coordination sphere of the above complex be replaced by F^(-) , then the magnetic moment of the complex ion ( due to spin only ) will be :

Knowledge Check

  • In coordination chemistry there are a variety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of raction, the formula of the complex can be predicted. An isomer of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent), suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . The correct formula of the complex is :

    A
    `[CoClBr(en)_(2)]H_(2)O`
    B
    `[CoCl(en)_(2)(H_(2)O)]BrCl`
    C
    `[CoBr(en)_(2)(H_(2)O)]Cl_(2)`
    D
    `[CoBrCl(en)_(2)]Cl.H_(2)O`
  • In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of reaction, the formula0 of the complex can be predicted. An isomers of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent ) it suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . If one moles of original complex is treated with excess (Pb(NO_(3))_(2) solution, then the number of moles of white precipitate ( of PbCl_(2) ) formed will be :

    A
    0.5
    B
    `1.0`
    C
    `0.0`
    D
    `3.0`
  • In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of reaction, the formula0 of the complex can be predicted. An isomers of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent ) it suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . The number of geometrical isomers of the formula of the above original complex are (including the complex ) :

    A
    2
    B
    3
    C
    4
    D
    1
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    In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of reaction, the formula0 of the complex can be predicted. An isomers of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent ) it suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . Similarly if all the ligands in the coordination sphere be replaced by CO_(2)^(-) , then the magnetic moment of the complex ion ( due to spin only ) will be :

    In coordination chemistry there are a variety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of raction, the formula of the complex can be predicted. An isomer of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent), suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . If one mole of original complex is treated with excess Pb(NO_(3))_(2) solution, then the number of moles of white precipitate (of PbCla_(2) ) formed will be :

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    In coordination chemistry there are a variety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of raction, the formula of the complex can be predicted. An isomer of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent), suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . If all the ligands in the coordination sphere of the above complex be replaced by F^(-) , then the magnetic moment of the complex ion (due to spin only) will be :