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A coordination compound of cobalt has th...

A coordination compound of cobalt has the molecular, formula containing five ammonia molecules, one nitro group and two chlorine atoms for onew cobalt atom. One mole of this compounds three ions in an aqueous solution. On reacting this solution with excess of `AgNO_(3)` solution, we get two moles of AgCI precipitate. The ionic formula for this complex would be

A

`[Co(NH_(3))_(4)ClNO_(2)][NH_(3)Cl]`

B

`[Co(NH_(3))Cl][ClNO_(2)]`

C

`[Co(NH_(3))_(5)NO_(2)]Cl_(2)`

D

`[Co(NH_(3))_(5)](NO_(2))_(2)Cl_(2)]`

Text Solution

Verified by Experts

The correct Answer is:
C
`[Co(NH_3)_5(NO)_2)]Cl_2ltimplies[Co(NH_3)_5(NO_2)]^(+)+ 2Cl^(-)`
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A complex compound of chromium chromium contains five NH_(3) molecules, one nitro group and two chloride ions for one Cr^(3+) cation. One molecule of this compound produces three ions in aq. Solution, on reacting with excess of AgNO_(3) solution, two moles of AgCl get precipitated Q. The formula of the complex compound is:

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Knowledge Check

  • A coordination compound of cobalt has the molecular formula cotaining five ammonia molecules, one intro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three moles of ions in an aqueous solution. The aqueous solution on treatment with an excess of AgNO_(3) gives two moles of AgCl as a precipitate. The formula of this complex would be

    A
    `[CO(NH_(3))_(4)(NO_(2))Cl][(NH_(3))_(4)Cl]`
    B
    `[Co(NH_(3))_(5)Cl][ClNO_(2)]`
    C
    `[Co(NH_(3))_(5)(NO_(2))]Cl_(2)`
    D
    `[Co(NH_(3))_(5)][(NO)_(2))_(2)Cl_(2)]`

  • A co-ordination complex, compound of cobalt has the molecular formulae containing five ammonia molecules, one nitro group and two chloride atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution on reacting with excess of AgNO_3 , AgCl precipitate. The ionic formula for this complex would be:

    A
    (a) `[Co(NH_3)_5(NO_2)Cl_2`
    B
    (b) `[Co(NH_3)_5Cl][Cl(NO_2)]`
    C
    (c) `[Co(NH_3)_4(No_2)Cl][(NH_3)Cl]`
    D
    (d) `[CO(NH_3)_5][(NO_2)_2Cl_2]`

  • A coordination compound of cobalt has the molecular formula containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three moles of ions in an aqueous solution.The aqueous solution on treatment with an excess of AgNO_(3) gives two equivalents of AgCl as a precipitate. The formula of this complex would be :

    A
    `[Co(NH_(3))_(4)(NO_(2))Cl][(NH_(3))Cl]`
    B
    `[Co(NH_(3))_(5)Cl][ClNO_(2)]`
    C
    `[Co(NH_(3))_(5)(NO_(2))]Cl_(2)`
    D
    `[Co(NH_(3))_(5)][(NO_(2))_(2)Cl_(2)]`

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    A coordiantion complex compound of cobalt has the molecular formula containing four ammonia molecules, one nitro group and two chlorine atoms. A solution of this complex was prepared by dissolving 2.44 g of it in water and making the volume to 200 mL. Excess of AgNO_(3) solution was then added to it and the precipitate of AgCl formed was filtered and dried. The weight of AgCl thus obtained was found to be 1.435 g (Atomic mass of Co=59, Ag=108) The formula of the complex would be

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