Chemistry - Complete P-block Question with Solution | TestHub

N₂ gas is produced when ammonium nitrite decomposes:

$$\mathrm{N}{\mathrm{H}}_4\mathrm{N}{\mathrm{O}}_2\stackrel{\mathrm{\Delta }}{\to }{\mathrm{N}}_2+2{\mathrm{H}}_2\mathrm{O}$$

NH₄NO₃ on heating gives N₂O, not N₂.

Ba(N₃)₂ decomposes to give nitrogen gas:

$$\mathrm{Ba}({\mathrm{N}}_3{)}_2\stackrel{\mathrm{\Delta }}{\to }\mathrm{Ba}+3{\mathrm{N}}_2$$

NH₃ with CuO gives N₂ on oxidation.

Therefore, the reaction which cannot give N₂ is:

Answer: (B) NH₄NO₃ $\stackrel{\Delta }{\to }$