On the basis of Werner's theory explain, why cobalt amine complex, $C o C l_{3} {4 N H}_{3}$ when treated with $A g {N O}_{3}$ solution precipitates only one ${C l}^{-}$ ion even though there are three ${C l}^{-}$ ions?

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Solution

In this compound, two $C l^{-}$ ions exhibit dual behavior of satisfying both primary and secondary valancies. These chloride ions do not get precipitated the $D^{-}$ ion remained would get attached to the central metal atom via only secondary valency thus, it gets precipitated upon treatment with $A g N O_{3}$ solution.

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Q. Write the IUPAC name of the following
(i)

P t {C l}_{4} \cdot 5 {N H}_{3}

(gives

4

ions in solution)
(ii)

P t {C l}_{4} \cdot 2 K C l

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3

ions in solution)
(ii)

I r {C l}_{3} \cdot 3 {N H}_{3}

(no

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(iv)

C o {C l}_{3} \cdot 4 {N H}_{3}

m(one

C l

is precipitated by

A g {N O}_{3}

In the complex

C o C l_{3} \cdot 5 N H_{3}

, one

C l^{-}

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Q. The number of ions per mole in the complex

C o C l_{3} ∙ 4 N H_{3}

in aqueous solution will be

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On the basis of Werner's theory explain, why cobalt amine complex, CoCl34NH3 when treated with AgNO3 solution precipitates only one Cl− ion even though there are three Cl− ions?

On the basis of Werner's theory explain, why cobalt amine complex, $C o C l_{3} {4 N H}_{3}$ when treated with $A g {N O}_{3}$ solution precipitates only one ${C l}^{-}$ ion even though there are three ${C l}^{-}$ ions?