The brown fumes given off when trioxonitrate (V) acid is heated consist of ?
-
NO2 and O2
- H2O and NO2
- NO2' O2 and H2O
- NO, NO2 and H2O
The correct answer is: A
Explanation
decomposition of the acid by heat to produce reddish-brown gas (nitrogen (iv)) which then dissolve in the acid to impart the yellow colour.