The products formed during the reaction of argentite with $K C N$ is/are :

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

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K_{2} [A g (C N)_{4}]

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K_{2} S

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K_{2} S_{3}

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Solution

The correct options are
A $K [A g (C N)_{2}]$
C $K_{2} S$
Option (A) and (C) are correct.

The products formed during the reaction of argentite with $K C N$ are $K [A g (C N)_{2}]$ and $K_{2} S$

$A g_{2} S + 4 K C N \to 2 K [A g (C N)_{2}] + K_{2} S$

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K C N

{A g}_{2} S + 4 K C N \to 2 K [A g {C N)}_{2}] + K_{2} S

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

A g_{2} S + 4 K C N_{2} 2 K [A g (C N)_{2}] + K_{2} S

_{2}

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Which compound is formed when an excess of $K C N$ is added to an aqueous solution of copper sulphate?

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