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प्रश्न
Explain the following:
Concentrated nitric add appears yellow when it is left standing in a glass bottle.
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उत्तर
Although pure concentrated nitric acid is colorless, it appears yellow when left standing in a glass bottle due to the dissolution of reddish brown nitrogen dioxide gas in the acid. Nitrogen dioxide is produced because of the thermal decomposition of a portion of nitric acid.
4HNO3 → 2H2O + 4NO2 + O2
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संबंधित प्रश्न
Name the products formed when dilute HNO3 is added to copper.
Ammonia is used in the Ostwald process.
What is the ratio of ammonia and air taken in this process?
The nitrate salt which does not give a mixture of NO2 and O2 on heating is ______.
Name the Following:
Salt used in the laboratory to prepare nitric acid
In which ratio reactants are taken in Ostwald process?
Name the catalyst used in Ostwald process.
Why is freshly prepared ferrous sulphate solution used in the ring test?
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
What happen when (Given balanced equation) :
Nitric acid is dissolved in large amount of water?
Choose the correct answer from the option given below :
Concentrated nitric acid oxidises phosphorus to :
