Question

The test used in the determination of extra elements in the organic compound is * Unsaturation Lassaigne Solubility Colour​

Answer 1

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The sodium fusion test, or Lassaigne's test, is used in elemental analysis for the qualitative determination of the presence of foreign elements, namely halogens, nitrogen, and sulphur, in an organic compound. It was developed by J. L. Lassaigne.