SATHEE: Extraction of Metals - Result Question 87

Extraction of Metals - Result Question 87

####90. Give balanced equations for the extraction of “Silver from silver glance by cyanide process.”

$(1988, 1 M)$

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Solution:

$A g_{2} S + 2 N a C N ⟶ 2 A g C N + N a_{2} S$

$A g C N + N a C N ⟶ N a [A g (C N)_{2}]$

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

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Extraction of Metals - Result Question 87

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