Question

Why is $N{H}_{4}N{O}_3$ not used in the laboratory preparation of ammonia?

• A. It undergoes a dissociation reaction forming $N_{2}O$ on heating.
• B. It undergoes a decomposition reaction forming $N_{2}O$ on heating.
• C. It also forms an explosive mixture with certain other chemicals
• D. None

Answer 1

Answer: (B), (C)

The correct options are
B

It undergoes a decomposition reaction forming $N_{2}O$ on heating.

C

It also forms an explosive mixture with certain other chemicals

Because on heating it decomposes to form $N_{2}O$ (Laughing gas) and also sometimes it forms an explosive mixture with certain other chemicals.

$N{H}_{4}N{O}_3\stackrel{\Delta }{\to }{N}_{2}O+2H_{2}O$