Question

Why nitric acid is placed in coloured bottle? Give reason

Answer 1

In the presence of sunlight, pure nitric acid decomposes slowly into nitrogen dioxide, water & gaseous oxygen - the former turns the remaining acid yellow or brown (depending on how much is present). To reduce the rate of that decomposition when in storage, it's stored in dark bottles.

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Answer 2

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In the presence of sunlight, pure nitric acid decomposes slowly into nitrogen dioxide, water & gaseous oxygen - the former turns the remaining acid yellow or brown (depending on how much is present). To reduce the rate of that decomposition when in storage, it's stored in dark bottles.

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