JEE Main 2002 Chemistry question

Chemistry General Principles and Processes of Isolation of Elements (Metallurgy)JEE Main 2002

The metal extracted by leaching with a cyanide is

(1)Mg
(2)AgCorrect
(3)Cu
(4)Na

Answer: (2)

Solution

Silver (and gold) are extracted by leaching the ore with dilute NaCN in the presence of air, forming the soluble complex , from which Ag is displaced by

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Question ID VK-037963