Question

Nitrogen has a reasonable oxidation number in the following compounds, and yet one of them is not stable. Which one and why? HNO3

Answer 1

solution :-

The presence of N₂ is the hint of its instability. N₂ is a dinitrogen molecule and is an unstable compound because nitrogen a triple bond with itself.

for eg:- nitric oxide is produced by burning ammonia (NH3), while in the laboratory it can be produced by the reduction of dilute nitric acid (HNO3) with, for example, copper (Cu).
3Cu + 8HNO3 2NO + 3Cu(NO3)2 + 4H2O