Question
Question: Which compound does not give positive Lassaigne's test for nitrogen?...
Which compound does not give positive Lassaigne's test for nitrogen?
A
Urea
B
Hydrazine
C
Azobenzene
D
Phenyl hydrazine
Answer
Hydrazine
Explanation
Solution
Hydrazine (H2N–NH2) do not have carbon so no CN– formation occur with Na extract.