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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$(A)$ Na and excess of $NH _3$
$(B)$ $K$ and excess of $O _2$
$(C)$ $Cu$ and dilute $HNO _3$
$(D)$ $O _2$ and $2$-ethylanthraquinol