Question:
In the reaction, \(4M + 8\mathrm{CN}^- + 2\mathrm{H}_2\mathrm{O} + \mathrm{O}_2 \longrightarrow 4[M(\mathrm{CN})_2]^- + 4\mathrm{OH}^-\), identify the metal M.
In the reaction, \(4M + 8\mathrm{CN}^- + 2\mathrm{H}_2\mathrm{O} + \mathrm{O}_2 \longrightarrow 4[M(\mathrm{CN})_2]^- + 4\mathrm{OH}^-\), identify the metal M.
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Cyanide process: Ag is leached from its ore using NaCN solution in presence of O\(_2\).
Updated On: Apr 20, 2026
- Copper
- Iron
- Silver
- Zinc
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
This is the cyanide process for extraction of silver.
Step 2: Detailed Explanation:
The reaction is used in the extraction of silver from argentite (Ag\(_2\)S).
\(4\mathrm{Ag} + 8\mathrm{CN}^- + 2\mathrm{H}_2\mathrm{O} + \mathrm{O}_2 \rightarrow 4[\mathrm{Ag}(\mathrm{CN})_2]^- + 4\mathrm{OH}^-\).
Step 3: Final Answer:
Silver (Ag)
This is the cyanide process for extraction of silver.
Step 2: Detailed Explanation:
The reaction is used in the extraction of silver from argentite (Ag\(_2\)S).
\(4\mathrm{Ag} + 8\mathrm{CN}^- + 2\mathrm{H}_2\mathrm{O} + \mathrm{O}_2 \rightarrow 4[\mathrm{Ag}(\mathrm{CN})_2]^- + 4\mathrm{OH}^-\).
Step 3: Final Answer:
Silver (Ag)
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