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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
How will you prepare the following from nitric acid?
Sodium nitrate
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How is nitric acid prepared in a laboratory?
How can 68% nitric acid be concentrated to 98% nitric acid?
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
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Lighting is a blessing in disguise.
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Furning nitric acid is obtained by dissolving an excess of _______ in conc. Nitric acid
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Write the equation for the laboratory preparation of nitric acid from potassium nitrate and concentrated sulphuric acid.
