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प्रश्न
Account for the yellow colour that appears in concentrated nitric acid when it is left standing in an ordinary glass bottle.
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उत्तर
In a glass apparatus nitric acid gets decomposed by sunlight. Yellowish brown colour of nitric acid is due to the presence of nitrogen dioxide formed due to thermal decomposition of nitric acid.
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संबंधित प्रश्न
Write a balanced equation for the action of heat on a mixture of copper and concentrated nitric acid.
Write a balanced equation and name the products formed when cupric oxide reacts with nitric acid.
What is the purpose of Conc. H2SO4 in the above preparation?
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
Complete and balance the following equation :
HNO3 + FeSO4 + H2SO4 → ______________
Write balanced equation for the preparation of nitric acid from potassium nitrate.
State, what is observe when nitric acid is kept in a reagent bottle for a long time.
Explain the following :
An all glass apparatus is used in the laboratory preparation of nitric acid.
Give a balanced equation for the following reaction:
Copper reacts with concentrated nitric acid.
