Silver metal is extracted from `Ag_(2) S` by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis.
Leaching of `Ag_(2)S` is carried out by heating it with a dilute solution of
Silver metal is extracted from `Ag_(2) S` by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis.
Leaching of `Ag_(2)S` is carried out by heating it with a dilute solution of
Leaching of `Ag_(2)S` is carried out by heating it with a dilute solution of
A
NaCN alone
B
NaCN in presence of `O_(2)`
C
HCI
D
NaOH
Text Solution
Verified by Experts
The correct Answer is:
B
Leaching of `Ag_(2)S: 2Na[Ag(CN)_(2)]`
`4g_(4)S+4NaCN hArr 2Na Ag(CN)_(2)+Na_(2)S`
`4Na_(2)S+5O_(2)+2H_(2)O to 2Na_(2)SO_(4)+4NaOH+2S`
`4g_(4)S+4NaCN hArr 2Na Ag(CN)_(2)+Na_(2)S`
`4Na_(2)S+5O_(2)+2H_(2)O to 2Na_(2)SO_(4)+4NaOH+2S`
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Knowledge Check
Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Ag is precipitated from an aqueous solution of sodium argentocynide by adding
Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Ag is precipitated from an aqueous solution of sodium argentocynide by adding
A
Zn dust
B
Cu power
C
NaHg
D
`Na_(2)S_(2)O_(3)`
Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Which of the following statements about electrolytic refining of silver is not true
Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Which of the following statements about electrolytic refining of silver is not true
A
Anode consists of impure silver
B
cathode consists of pure silver
C
Electrolytic solution consists of `AgNO_(3) and HNO_(3)`
D
Elecipitated solution consists of `AgNO_(3) and HCl`
Siulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide ores offfers an exception and is concentrated by leaching ?
Siulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide ores offfers an exception and is concentrated by leaching ?
A
Argentitie
B
Copper pyrites
C
Sphalerite
D
Galena
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