Question

State your observation in each of the following cases:

(ii) When calcium hydroxide is heated with ammonium chloride crystals.

Answer 1

When calcium hydroxide $\left(\mathrm{Ca}{\left(\mathrm{OH}\right)}_2\right)$ is heated with ammonium chloride $\left({\mathrm{NH}}_4\mathrm{Cl}\right)$ crystals, then a colorless pungent gas i.e. ammonia $\left({\mathrm{NH}}_3\right)$ is obtained.

The balanced chemical reaction for the same is stated below.

$\mathrm{Ca}{\left(\mathrm{OH}\right)}_2\left(\mathrm{s}\right)+2{\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{aq}\right)\to {\mathrm{CaCl}}_2\left(\mathrm{aq}\right)+2{\mathrm{NH}}_3\uparrow +2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$