JEE Main Chemistry question

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

Not in JEE Main or NEET syllabus

Native silver metal forms a water soluble complex with a dilute aqueous solution of in the presence of [IIT JEE 2008]

(A)Nitrogen
(B)OxygenCorrect
(C)Carbon dioxide
(D)argon

Answer: (B)

Solution

In the cyanide (MacArthur-Forest) process, crushed native silver ore is treated with dilute and aerated with air so that oxygen oxidises the silver, allowing it to form the soluble

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Question ID VK-145296