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प्रश्न
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
उत्तर
The glass apparatus is purposely used because the nitric acid produced reacts with practically every material, including cork and rubber. Glass is the lone exception. Nitric acid in its pure form is unstable when exposed to sunlight.
\[\ce{4HNO3 ->[\Delta][Sun light] 4NO2 + 2H2O + O2}\]
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संबंधित प्रश्न
How will you prepare the following from nitric acid?
Sodium nitrate
Name the Following:
Product obtained by heating concentrated nitric acid.
What is meant by the following term ?
Decrepitation
Describe the Ostwald's process for the manufacture of nitric acid with labeled diagram.
Give reason for the following:
Nitric acid is used in purification of gold.
Choose the correct answer from the option given below :
Nitric acid on standing develops brownish colour which may be attributed to the presence of :
Write balanced equation for the preparation of nitric acid from potassium nitrate.
When nitric acid is prepared by the action of concentrated sulphuric acid on potassium nitrate. what is the special feature of the apparatus used?
Account for the yellow colour that appears in concentrated nitric acid when it is left standing in an ordinary glass bottle.
Give a balanced equation for the following reaction:
Copper reacts with concentrated nitric acid.
