Question

Question : 64
In the metallurgy of native ores of silver and gold, complex which is not formed, is

Options:

[Ag(CN)2]–

[Au(CN)2]–


[Ag(CN)4]3–

[Zn(CN)4]2–

Answer 1

Answer:

The answer to your question is  Option (C) i.e [Ag(CN)4]3⁻.

Explanation:

Separation of gold and silver by chemical or electrochemical techniques in metallurgy. Gold and silver are frequently extracted simultaneously from the same ores or as by-products of other metals extraction.

The solution of a cyanide act as a complexing reagent in the extraction of gold and silver in the existence of air, forming their respective solubility complexes.

Answer 2

Answer:

The compount that is not formed is [Ag(CN)4]3–

Explanation:

• In metallurgy, chemical or electrochemical processes are used to separate gold and silver. Gold and silver are frequently extracted at the same time or as by-products of the extraction of other metals.
• In the extraction of gold and silver in the presence of air, cyanide solution acts as a complexing reagent, creating their respective solubility complexes.
  #SPJ2