Question

Nitrogen gas can be obtained by heating :

• A. ammonium nitrate
• B. ammonium nitrite
• C. magnesium nitride
• D. ammonium chloride

Answer 1

The correct option is B ammonium nitrite

$\begin{array}{c}\text{A.) Ammonium nitrate (}{NH}_4{NO}_3\text{)}\\ {NH}_4{NO}_3⟶△\underset{\text{Nitrous oxide}}{N_{2}O}+2H_{2}O\end{array}$

$\begin{array}{c}\text{B.) Ammonium nitrite}\left({NH}_4{NO}_2\right)\\ {NH}_4{NO}_2⟶N_2\uparrow +2H_{2}O\end{array}$

$\begin{array}{c}\text{C) Megnesium nitride}\left({Mg}_3{N}_2\right)\\ {Mg}_3{N}_2\underset{700-{150}^{\circ }C}{⟶}3Mg+N_2\left[\text{Rare Conditim}\right]\end{array}$

$\begin{array}{c}\text{D ) Ammonium Chloride (}{NH}_{4}Cl\text{)}\\ {NH}_{4}Cl\underset{\Delta }{⟶}{NH}_3+HCl\\ \text{Correct Answer - (B)}\end{array}$