During extraction of silver from silver glance by cyanide process, Na2[Zn(CN)4] becomes soluble and Ag 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.
Ag2S+4NaCN→2Na[Ag(CN)2]+Na2S
2Na[Ag(CN)2]+Zn→Na2[Zn(CN)4]+2Ag↓.
Soluble ppt
The process of extraction of silver is called the cyanide process.