Which of the following nitrogen containing compound does not give Lassaigne's test?

Which of the following nitrogen containing compound does not give Lassaigne's test?
  1. Urea
  2. Phenyl hydrazine
  3. Glycene
  4. Hydrazine

Solution

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

Asked in: JEE Main 2024 (04 Apr Shift 1)

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