Question

Name the gas in the following:
The gas produced when excess ammonia reacts with chlorine.

Answer 1

Reaction of excess ammonia $\left({\mathrm{NH}}_3\right)$ with chlorine $\left({\mathrm{Cl}}_2\right)$:

• Ammonium chloride $\left({\mathrm{NH}}_4\mathrm{Cl}\right)$ is generated when there is an excess of ammonia and nitrogen $\left({\mathrm{N}}_2\right)$ is liberated.
• The reaction is:
  $8{\mathrm{NH}}_3\left(\mathrm{g}\right)+3{\mathrm{Cl}}_2\left(\mathrm{g}\right)⟶6{\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{s}\right)+{\mathrm{N}}_2\left(\mathrm{g}\right)\uparrow$

Therefore, nitrogen gas is produced when excess ammonia reacts with chlorine.