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Explain the reason for the fusion of an ...

Explain the reason for the fusion of an organic compound with metallic sodium for testing nitrogen, sulphur and halogens.

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The elements like `N,S,P` or halogens in the organic compounds are presents in the form of covalent bond and therefore they are converted into ionic species (e.g. `Coverset(o-)N,S^(2-),PO_4^(3-)`, and `X^(o-)` ions) by fusing with Na. these ionic species can be easily detected by ionic reaction.
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CENGAGE CHEMISTRY ENGLISH-PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS-Concept Application Type
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  15. In the estimation of sulphur by Carius method, 0.468 g of an organic s...

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