The brown fumes given off when trioxonitrate (V) acid is ...
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
Correct answer is A
decomposition of the acid by heat to produce reddish-brown gas (nitrogen (iv)) which then dissolve in the acid to impart the yellow colour.
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