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JEE Main Chemistry question

ChemistryGeneral 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 dilute aqueous NaCN in the presence of:

Answer: (B)

Solution

The cyanide extraction of silver requires atmospheric oxygen:

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Question ID VK-147956