collect information about extraction of metal s of low reactivity silver platinum gold and prepare a report
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low reactive metals like silver , platinum , gold etc .extracted by cyanide process.
silver found in nature argentite(Ag2S)
ores .argentite ores reacted by sodium cyanide which gives silver cyanide and sodium sulphide . again silver cyanide reacted with sodium cyanide which give complex Na [Ag (CN) 2] ,now this complex reacted with Zn which gives silver metal .the following process according to below
Ag2S+2NaCN---->2 AgCN+Na2S
AgCN+NaCN---> Na[Ag (CN) 2]
Na[Ag (CN) 2]+Zn--> Na2 [Zn (CN) 4]+2Ag
in the same way platinum and gold extracted by ores .
silver found in nature argentite(Ag2S)
ores .argentite ores reacted by sodium cyanide which gives silver cyanide and sodium sulphide . again silver cyanide reacted with sodium cyanide which give complex Na [Ag (CN) 2] ,now this complex reacted with Zn which gives silver metal .the following process according to below
Ag2S+2NaCN---->2 AgCN+Na2S
AgCN+NaCN---> Na[Ag (CN) 2]
Na[Ag (CN) 2]+Zn--> Na2 [Zn (CN) 4]+2Ag
in the same way platinum and gold extracted by ores .
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