Qualitative analysis: detection of N, S, P, halogens
- Which one of the following reactions does NOT belong to "Lassaigne's test"? Answer: 4. mathrm2CuO + C xrightarrowΔ 2Cu + CO₂ Key idea: Lassaigne's test fuses the organic compound with sodium to convert N, S and halog... 1
- In Lassaigne's extract of an organic compound, both nitrogen and sulphur are present, which gives blood red colour with Fe^3+ due to the formation of - Answer: 1. [Fe(SCN)]²⁺ Key idea: When N and S are both present, Na fusion forms sodium thiocyanate, NaSCN, in the Lassaigne's extract. Na +... 1