Question

In metallurgy the metal used to displace silver pom its cyano complex

Answer 1

In metallurgy the metal used to displace silver from its cyano complex is Zinc.

Answer 2

Answer:

Zinc is the metal used to remove silver from its cyano complex in metallurgy.

Explanation:

• The MacArthur-Forest procedure, sometimes known as the cyanide process, is used to extract Ag.
• The following are the reactions involved in silver extraction:
• Ag2S + 4NaCN -› 2Na[Ag(CN)2] + Na2S (reversible reaction)

2Na[Ag(CN)2] + Zn -› Na2(Zn(CN)4] + 2Ag

• The cyanide process, also known as the Macarthur-forrest Process, involves dissolving silver and gold ores in a weak solution of sodium cyanide or potassium cyanide.
• The method was developed in 1887 by Scottish chemists John S.
• This procedure is divided into three steps: The silver ore is finely crushed into tiny particles and then treated with a dilute solution of sodium cyanide in the first phase.
• A soluble silver cyanide complex is generated when the silver ore dissolves in the sodium cyanide solution. Hence, this phase is known as the leaching process, and it actually involves extracting insoluble silver from its ore and converting it to soluble silver cyanide.
• The silver cyanide solution is now treated with a zinc solution, causing the silver cyanide to precipitate out and allowing pure silver to be extracted from its ore.

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