Advertisements
Advertisements
प्रश्न
Account for the yellow colour that appears in concentrated nitric acid when it is left standing in an ordinary glass bottle.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Explain the following:
Concentrated nitric add appears yellow when it is left standing in a glass bottle.
Name the Following:
Salt used in the laboratory to prepare nitric acid
What is meant by the following term?
Fuming nitric acid
Why is freshly prepared ferrous sulphate solution used in the ring test?
What do you observe when?
Scrap zinc is heated with conc. HNO3?
Fill in the blank with appropriate word/words.
3 Cu + 8 HNO3 (dilute) → _______ + 4H2O + _________
Give reason for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitatre should not be heated very strongly, above 200°C
Name the gas evolved:
The gas produced on heating sodium nitrate.
Explain the following :
An all glass apparatus is used in the laboratory preparation of nitric acid.
What happens when
Common salt solution is added to silver nitrate solution and NH3 solution add to it.
