Silver ores and native gold have to be leached with metal . cyanides. Suggest a reason for this.

Statement-1:Extraction of gold from its native ore involves leaching the metal ore with dilute solution of NaCN in presence of air. Statement-2:This is an oxidation reaction and leads to the formation of a soluble complex.

Metallic gold frequently is found in aluminosilicate rocks and it is finely dispersed among other minerals. It may be extracted by treating the crushed rock with aerated sodium cyanide solution. During this process metallic gold is slowly converted t [Au(CN)_(2)]^(-) , which is soluble in water. After equlibrium has been reached, the aqueous phase is pumped off and the metallic gold is recovered from it by reacting the gold complex with zinc, which is converted to [Zn(CN)_(4)]^(2-) , Gold in nature is frequently alloyed with silver is also oxidised by aerated sodium cyanide solution. The correct ionic reaction for the process is//are:

Name the important ore of silver. Write all the steps and reactions involved in the cyanide process for the extraction of silver from its ore.

The ore having two different metal atoms is

The ore having two different metal atoms is

Which of the following metal is leached by Cyanide process

Which of the following metal is leached by Cyanide process

An ore contains 1.34% of the mineral argentite, Ag_(2)S , by mass. How many gram of this ore would have to be processed in order to obtain 1.00 g of pure solid silver, Ag?