Q12 / 160 · TS EAMCET 2010 · Chemistry

The oxide of nitrogen formed by thermal decomposition of $\mathrm{NH}_4 \mathrm{NO}_3$ is

A
$\mathrm{NO}$
Correct answer
B
$\mathrm{N}_2 \mathrm{O}$
C
$\mathrm{N}_2 \mathrm{O}_5$
D
$\mathrm{NO}_2$

Solution

By thermal decomposition of ammonium nitrate, nitrous acid (laughing gas) is obtained. $\mathrm{NH}_4 \mathrm{NO}_3 \underset{250^{\circ} \mathrm{C}}{\stackrel{\Delta}{\longrightarrow}} \mathrm{N}_2 \mathrm{O}+2 \mathrm{H}_2 \mathrm{O}$

Hence, the correct answer is option: 'B'.

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