Seema Saini Solutions for Chapter: p-Block Group 15 (The Nitrogen Family), Exercise 2: DPP

Ammonium chloride $\left({\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{s}\right)\right)$ is heated in a test tube. Vapours are brought in contact with a red litmus paper, which changes to blue and then to red. It is because of

Nitrogen dioxide $\left({\mathrm{NO}}_2\right)$

${\mathrm{N}}_2{\mathrm{H}}_4$ reduces ${\mathrm{IO}}_3^{-}/{\mathrm{H}}^{+}$

The following side reaction in the production of hydrazine:

${\mathrm{N}}_2{\mathrm{H}}_4+2{\mathrm{NH}}_2\mathrm{Cl}⟶{\mathrm{N}}_2+2{\mathrm{NH}}_4\mathrm{Cl}$

The nitrogen oxide(s) that contain(s) $\mathrm{N}-\mathrm{N}$ bond(s) is/are

Ammonia reacts with Nessler's reagents to give a precipitate due to the formation of

Ammonium dichromate on heating liberates a gas. The same gas will be obtained by

Nitrogen $\left(\mathrm{I}\right)$ oxide is produced by