In Lassaigne's test for nitrogen, the brilliant Prussian blue coloration is due to the formation of — Practical Organic Chemistry and Purification Chemistry Question
Question
In Lassaigne's test for nitrogen, the brilliant Prussian blue coloration is due to the formation of the complex:
Answer: B
💡 Solution & Explanation
Cyanide ions react with $Fe^{2+}$ to form hexacyanoferrate(II), which then reacts with $Fe^{3+}$ to yield Iron(III) hexacyanoferrate(II), $Fe_4[Fe(CN)_6]_3$.
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