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One mole of the complex compound Co(NH_3)_5Cl_3 gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with two moles of AgNO_3 solution to yield two moles of AgCl_(s). The structure of the complex is

  • Option 1)

    [Co(NH_3)_5Cl]Cl_2

  • Option 2)

    [Co(NH_3)_3Cl_3]2NH_3

  • Option 3)

    [Co(NH_3)_4Cl_2]Cl\cdot NH_3

  • Option 4)

    [Co(NH_3)_4Cl]Cl_2\cdot NH_3

 

Answers (1)

As we have learned

Hybridisation -

sp3d2 - square bipyramidal or octahedral 

d2sp3 - octahedral 

sp3 - tetradedral 

dsp2 - square planar

- wherein

sp3d2 - outer complex

d2sp3 - inner complex

sp3 - [Ni(Cl)_{4}]^{2-}

dsp2 - [Pt(CN)_{4}]^{2-}

 

 

 

2Cl^-ions are ionizable

      \therefore [Co(NH_3)_5Cl]Cl_2\rightleftharpoons [Co(NH_3)_5Cl]^2+2Cl^-

 

      2Cl^-+AgNO_3\rightarrow 2AgCl+2NO_{3}^-{}

              .

 


Option 1)

[Co(NH_3)_5Cl]Cl_2

Option 2)

[Co(NH_3)_3Cl_3]2NH_3

Option 3)

[Co(NH_3)_4Cl_2]Cl\cdot NH_3

Option 4)

[Co(NH_3)_4Cl]Cl_2\cdot NH_3

Posted by

Vakul

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