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  4. Which of the following compounds is not expected to show Lassaignes’ test for nitrogen ?

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Q. Which of the following compounds is not expected to show Lassaignes’ test for nitrogen ?

JEE MainJEE Main 2013

Solution:

Lassaigne’s test is used for the detection of nitrogen and given by all nitrogenous compound except diazo $(-N=N-)$ compounds.
This test is shown only by the compounds containing $C$ and $N$ both hence hydroxyl amine hydrochloride $(H_2NOH.HCl)$ will not perform this test.