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Preence of N is hydroxylamine hydrochlor...

Preence of N is hydroxylamine hydrochloride cannot be detected by Lassaigne's test - why?

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To hydroxylamine hydrochloride `(NH_(2)OH*HCI)` is fused with metalic sodium, NaCN is not obtained as the compound contains no carbon. Thus, the presence of nitrogen in this compound cannot to detected by Lassaigne's test
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