In the cyanide process for the extraction of | vedclass

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

Question

(A) In the cyanide process (MacArthur-Forrest process) for the extraction of silver $(Ag)$,the ore is treated with a dilute solution of sodium cyanide

Vedclass · Accepted Answer

Convert silver into a soluble silver complex

Vedclass · Answer

(A) In the cyanide process (MacArthur-Forrest process) for the extraction of silver $(Ag)$,the ore is treated with a dilute solution of sodium cyanide $(NaCN)$ in the presence of air $(O_2)$.$4Ag(s) + 8CN^-(aq) + 2H_2O(aq) + O_2(g) \rightarrow 4[Ag(CN)_2]^-(aq) + 4OH^-(aq)$.Here,silver is oxidized and converted into a soluble dicyanoargentate$(I)$ complex,$[Ag(CN)_2]^-$,which allows it to be separated from the ore.

In the cyanide process for the extraction of silver,sodium cyanide $(NaCN)$ is used to

Similar Questions

Carbon cannot be used in the reduction of $Al_2O_3$ because

In the alumino-thermite process,$Al$ acts as which of the following substances?

The slag obtained during the extraction of copper from copper pyrites is composed mainly of

Which of the oxide groups among the following cannot be reduced by carbon?

Iron can be obtained on a large scale from $Fe_2O_3$ by which of the following methods?

Vedclass Test Series

Exam Paper Generator

Online Exam Module