The chemical reactions involved in the extraction of metallic silver from argentite is -

$2 N a [A g (C N)_{2}] + Z n \to N a_{2} [Z n (C N)_{4}] + 2 A g ↓$ .

If the statement is true enter 1 else 0.

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Solution

Silver is extracted from argentite ore by cyanide process, ln case of silver metal, the sulphide ore is treated with sodium cyanide, sodium argentocyanide complex is formed which on treating with zinc metal gives silver.

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

$2 N a [A g (C N)_{2}] + Z n \to N a_{2} [Z n (C N)_{4}] + 2 A g ↓$

So, the given statement is true.

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