Which of the following complexes are formed when $A g C l$ is dissolved in an excess solution of $N H_{3}$ , $K C N$ and $N a_{2} S_{2} O_{3}$ respectively?

[A g (N H_{3})_{2}]^{+}

[A g (C N)_{2}]^{-}

and

[A g (S_{2} O_{3})_{2}]^{3 -}

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[A g (N H_{3})_{2}]^{2 +}

[A g (C N)_{2}]^{3 -}

and

[A g_{4} (S_{2} O_{3})_{5}]^{2 -}

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[A g (N H_{3})_{2}]^{2 +}

[A g (C N)_{2}]^{+}

and

[A g_{2} (S_{2} O_{3})_{2}]^{2 -}

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[A g (N H_{3})_{4}]^{+}

[A g (C N)_{4}]^{3 -}

and

[A g_{2} (S_{2} O_{3})_{2}]^{2 -}

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Solution

The correct option is B $[A g (N H_{3})_{2}]^{+}$ , $[A g (C N)_{2}]^{-}$ and $[A g (S_{2} O_{3})_{2}]^{3 -}$
The complex formation reactions take place as:

$A g^{+} N H_{3} - -- \to [A g (N H_{3})_{2}]^{+}$
$A g^{+} C N^{-} - -- \to [A g (C N)_{2}]^{-}$
$A g^{+} (S_{2} O_{3})^{- 2} - ---- \to [A g (S_{2} O_{3})_{2}]^{3 -}$

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Similar questions

AgCl dissolved in excess $N H_{3}$ , $K C N$ and $N a_{2} S_{2} O_{3}$ solutions the complex produce ions.

K C N, N H_{3}

N a_{2} S_{2} O_{3}

A g^{+}

[A g (N H_{3})_{2}]^{+}, A g (C N)_{2}]^{-}, [A g (S_{2} O_{3})_{2}]^{3 -}

[A g (N H_{3})_{2}] [A g (C N)_{2}]

[A g (N H_{3})_{2}] [A g (C N)_{2}]

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