Question

Explain if the statement given below is correct or incorrect.

"All ammonium salts on heating decompose to liberate ammonia gas."

• A. True
• B. False

Answer 1

The correct option is B False

• On heating, all ammonium salts do not liberate ammonia $\left({\mathrm{NH}}_3\right)$.
• For example, heating ammonium nitrate $\left({\mathrm{NH}}_4{\mathrm{NO}}_3\right)$ produces nitrogen oxide $\left({\mathrm{N}}_2\mathrm{O}\right)$. As a result, we can't state that all ammonium salts produce ammonia when heated.
  ${\mathrm{NH}}_4{\mathrm{NO}}_3\left(\mathrm{aq}\right)\to {\mathrm{N}}_2\mathrm{O}\left(\mathrm{g}\right)+2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$
• Therefore, the given statement is false.