Question

NH3 can't be obtained by :

• A. Heating of NH4NO3 or NH4NO2
• B. Heating of NH4Cl or (NH4)2 CO3
• C. Heating of NH4NO3 with NaOH
• D. Reaction of AIN or Mg3N2 or CaCN2 with H2O

Answer 1

Answer: (A)

Heating of NH4NO3 or NH4NO2

Answer 2

NH4NO3 and NH4NO2 both contain oxidising anions and thus gives N2O or N2 not ammonia.

NH4NO3 $\overset{\quad\Delta\quad}{\rightarrow}$N2O + 2H2O ;

NH4NO2 $\overset{\quad\Delta\quad}{\rightarrow}$N2 + H2O