why does HNo3 becomes yellow in long standing
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Nitric acid slowly decomposes even at room temperature, specially in the presence of sunlight.
4HNO3
→
4NO2 + 2H2O + O2.
Liberated nitrogen dioxide dissolves in the acid and gives a yellow colour.
4HNO3
→
4NO2 + 2H2O + O2.
Liberated nitrogen dioxide dissolves in the acid and gives a yellow colour.
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