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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.
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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
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
Name the following :
Gas produced in air during lighting.
Why is the temperature maintained at 200°C in the above reaction?
Give reason for the following:
Conc. Nitric acid renders iron passive.
Give reason for the following:
Aqua regia dissolves gold and platinum.
Give reason for the following:
Concentrated nitric acid is a stronger oxidizing agent.
What happens when (Given balanced equation):
Nitric acid is added to Kl (aq)?
What happen when (Given balanced equation):
Nitric acid is added to washing soda and the resulting gas is passed through a freshly prepared lime water?
Write the equation to show the reaction between the following:
Dilute nitric acid to produce carbon dioxide.
Complete the table:
| Name of Process | Inputs | Equation | Output |
| Ammonia + Air | Nitric acid |
