Question

why is nitric v acid usually kept in dark brown bottle

Answer 1

Explanation:

HNO3 is stored in brown bottles because some compounds, in the presence of sunlight, may break down or react with other compounds. Under the action of light, nitric acid slowly decomposes into oxides of nitrogen plus free oxygen, which is why they are stored in brown bottles to prevent sunlight from reaching them.

Answer 2

Answer:

HNO3 usually kept in dark brown bottle because of some compounds,in the presence of sunlight, may break down or react with other compounds. Under the action of light,nitric acid slowly decomposes into oxides or nitrogen plus free oxygen, that is why these acids are stored in brown bottles to percent sunlight from reaching them.

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