MCQ
Lassaigne's test for nitrogen is negative for which compound ?
- A$Et-NH_2$
- B$CH_3-NH_2$
- C

- ✓$H_2N-NH_2$

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$(a)$ $C{H_3} - \mathop C\limits^ \oplus H - C{H_3}$
$(b)$ $C{H_3} - \mathop C\limits^ \oplus H - OC{H_3}$
$(c)$ $C{H_3} - \mathop C\limits^ \oplus H - CO - C{H_3}$

$Z$ is known as