Question

Identify the gas evolved and give chemical test when calcium hydroxide is heated with ammonium chloride?

Answer 1

1. When calcium hydroxide heated with ammonium chloride ammonia gas is released with pungent smell.
2. The main product formed is calcium chloride along with water molecules.
3. The reaction is illustrated below-

$$\begin{gathered} \mathrm{Ca}{\left(\mathrm{OH}\right)}_2+2{\mathrm{NH}}_4\mathrm{Cl}\stackrel{∆}{\to }{\mathrm{CaCl}}_2+2{\mathrm{NH}}_3+2{\mathrm{H}}_2\mathrm{O} \\ (\mathrm{calcium}(\mathrm{ammonium}(\mathrm{calcium}(\mathrm{ammonia})(\mathrm{water}\left) \\ \mathrm{hydroxide}\right)\mathrm{chloride})\mathrm{chloride}) \end{gathered}$$