NEET2015ChemistryGeneral Organic ChemistryActual
Lassaigne's test for the detection of nitrogen fails in
Options
- AH ₂ ~N - CO - NHNH ₂ HCl
- BNH ₂- NH ₂ HCl
- CC ₆ H ₅- NH - NH ₂ HCl
- DC ₆ H ₅ CONH ₂
Correct answer
B. NH ₂- NH ₂ HCl
Step-by-step solution
Lassaigne's test is given by those nitrogenous compounds in which carbon is also present along with nitrogen. In NH ₂- NH ₂ HCl , carbon is absent, so it does not give Lassaigne's test.