MCQ
Which of the following nitrogen containing compound does not give Lassaigne's test ?
  • A
    Phenyl hydrazine
  • B
    Glycene
  • C
    Urea
  • Hydrazine

Answer

Correct option: D.
Hydrazine
d
Hydrazine $\left(\mathrm{NH}_2-\mathrm{NH}_2\right)$ have no carbon so does not show Lassaigne's test.

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$(I)$ $\begin{array}{*{20}{c}}
{{{\left( {C{H_3}} \right)}_3}Si - NB{H_2}}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Si{{(C{H_3})}_3}}
\end{array}$     $(II)$ $\begin{array}{*{20}{c}}
{{{\left( {C{H_3}} \right)}_3}C - NB{H_2}}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{(C{H_3})}_3}}
\end{array}$

In the reaction the electrophile involved is
Product of the above reaction is
$CH_3-CH_2-CH_2-Cl$ $\xrightarrow{{KO{H_{\left( {aq} \right)}}}}X\xrightarrow{{{H^ \oplus }/\Delta }}Y\xrightarrow{{C{l_2}/{H_2}O}}Z\left( {Major} \right);\,Z$ is
$IUPAC$ name of the compound