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Cyanide or Macarthur Forrest Process

During extrac...

Question

During extraction of silver from silver glance by cyanide process, $N a_{2} [Z n (C N)_{4}]$ becomes soluble and $A g$ is precipitated.
If the statement is true enter 1, else enter 0.

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Solution

In the 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.

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

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

The process of extraction of silver is called the cyanide process.

Hence, the given statement is true.

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Similar questions

Q. The soluble complex formed during the extraction of silver from glance cyanide process is:

Q. 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.

Q. Silver containing ore can be converted into silver in cyanide process.

If true enter 1, else enter 0.

Q. STATEMENT-1 : Silver extraction is done by dissolving its ore into cyanide solution.
STATEMENT-2 : In cyanide process, the silver is precipitated from soluble complex of silver of zinc-dust.

Q. Name of the process is cyanide process, in which we added Zn to soluble

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

to get Ag. If true enter 1 else 0.

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