4 Ag_{(s)} + 8 CN^{-}_{(aq)} + 2 H_2O_{(l)} + | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The given reaction is an example of cyanide leaching,which is used for the extraction of metals like $Ag$ and $Au$ from their ores.In this process

Vedclass · Accepted Answer

Leaching

Vedclass · Answer

(A) The given reaction is an example of cyanide leaching,which is used for the extraction of metals like $Ag$ and $Au$ from their ores.In this process,the ore is treated with a suitable reagent (like $NaCN$ or $KCN$) to dissolve the metal in the form of a complex.Levigation is a gravity separation process based on the difference in densities of the ore and gangue.Froth flotation is a physical process used primarily for sulphide ores.Liquation is a refining process used for metals with low melting points.

$4 Ag_{(s)} + 8 CN^{-}_{(aq)} + 2 H_2O_{(l)} + O_{2(g)} \longrightarrow 4 [Ag(CN)_2]^{-}_{(aq)} + 4 OH^{-}_{(aq)}$
The above reaction represents the process of concentration of ore in the extraction of silver. This process is:

Similar Questions

Which of the following is used as a depressant in the separation of $ZnS$ from $PbS$ in the froth flotation process?

The ore which is concentrated by leaching is:

Name the reagent that is used in leaching of gold.

In the froth floatation process for the concentration of ores,the ore particles float because:

In the extraction of $Al$,the chemical used in Serpeck's process is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$4 Ag_{(s)} + 8 CN^{-}_{(aq)} + 2 H_2O_{(l)} + O_{2(g)} \longrightarrow 4 [Ag(CN)_2]^{-}_{(aq)} + 4 OH^{-}_{(aq)}$The above reaction represents the process of concentration of ore in the extraction of silver. This process is: