When one mole of a complex is treated with excess of $A g N O_{3}$ solution, 143.5 g of white precipitate is formed, the complex is :

C o C l_{3} .6 N H_{3}

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C o C l_{3} .5 N H_{3}

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C o C l_{3} .4 N H_{3}

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C o C l_{3} .3 N H_{3}

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Solution

The correct option is C $C o C l_{3} .4 N H_{3}$
Molar mass of AgCl= 143.5 g

It means one mole of $A g C l$ precipitate is formed.

It means there is only once $C l$ atom is out of the coordination sphere.

Hence the formula of the complex will be $[C o (N H_{3})_{4} C l_{2}] C l$

Option C is correct.

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Similar questions

Q. The correct order of the stoichiometries of

A g C l

formed when

A g N O_{3}

in excess is treated with the complexes:

C o C l_{3} .6 N H_{3}, C o C l_{3} .5 N H_{3}, C o C l_{3} .4 N H_{3}

respectively is:

Th correct order of the stochiometrics of AgCl formed when $A g N O_{3}$ in excess is treated with the complexes: $C o C l_{3} .6 N H_{3}, C o C l_{3} .5 N H_{3}, C o C l_{3} .4 N H_{3}$ respectively is

Q. If one mole of the original complex is treated with excess of

P b (N O_{3})_{2}

solution, then the number of moles of white precipitate (of

P b C l_{2})

formed will be :

C o C l_{3} .3 N H_{3}

does not form any precipitate with excess

{A g N O}_{3}

solution, whereas 1 mole of

C o C l_{3} .5 N H_{3}

gives two moles of

A g C l

with excess

{A g N O}_{3}

. The van't Hoff factor for both the compounds respectively are:

Q. If one mole of original complex is treated with excess

P b (N O_{3})_{2}

solution, then the number of moles of white precipitate formed will be

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When one mole of a complex is treated with excess of AgNO3 solution, 143.5 g of white precipitate is formed, the complex is :

The correct option is C CoCl3.4NH3Molar mass of AgCl= 143.5 gIt means one mole of AgCl precipitate is formed.It means there is only once Cl atom is out of the coordination sphere. Hence the formula of the complex will be [Co(NH3)4Cl2]ClOption C is correct.

When one mole of a complex is treated with excess of $A g N O_{3}$ solution, 143.5 g of white precipitate is formed, the complex is :