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One mole of the octahedral complex compound Co ( NH ₃ )₅ Cl ₃ gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with excess of AgNO ₃ solution to yield two moles of AgCl _ ( s ) . The structure of the complex is:

Options

  1. A[ Co ( NH ₃ )₄ Cl ₂ ] Cl NH ₃
  2. B[ Co ( NH ₃ )₃ Cl ₃ ] 2 NH ₃
  3. C[ Co ( NH ₃ )₅ Cl ] Cl ₂
  4. D[ Co ( NH ₃ )₄ Cl ] Cl ₂ NH ₃

Correct answer

C. [ Co ( NH ₃ )₅ Cl ] Cl ₂

Step-by-step solution

array l [ Co ( NH ₃ )₅ Cl ] Cl ₂ [ Co ( NH ₃ )₅ Cl ]²⁺( aq. )+2 Cl ⁻( aq. ) _ 3 ions in water [ Co ( NH ₃ )₅ Cl ] Cl ₂( aq. )+2 AgNO ₃( aq. ) [ Co ( NH ₃ )₅ Cl ] ( NO ₃ )₂( aq. )+2 AgCl ( s ) array

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