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प्रश्न
The figure given below illustrates the apparatus used in the laboratory preparation of nitric acid.
- Name A (a liquid), B (a solid), and C (a liquid). (Do not give the formulae.)
- Write an equation to show how nitric acid undergoes decomposition.
- Write the equation for the reaction in which copper is oxidised by concentrated nitric acid.
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उत्तर
- A: Conc. sulphuric acid
B: Sodium nitrate or Potassium nitrate
C: Nitric acid - \[\ce{4HNO3 ->[Heat][Sunlight] 4NO2 + 2H2O + O2}\]
- \[\ce{Cu + 4HNO3 -> Cu(NO3)2 + 2NO2 + 2H2O}\]
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संबंधित प्रश्न
Give reason for the following:
Lighting is a blessing in disguise.
Fill in the blank with appropriate word/words.
Ammonal is a mixture of ________ and __________
Fill in the blank with appropriate word/words.
3 Cu + 8 HNO3 (dilute) → _______ + 4H2O + _________
State the conditions for the oxidation of ammonia to nitrogen monoxide [nitric oxide], in the manufacture of nitric acid by Ostwald's process. Write the balanced equcation for the reaction.
Write a balanced equation for the production of nitrogen dioxide using copper.
Why does pure nitric acid take on a yellowish brown colour when exposed to light?
Write the equation for the reaction of dilute nitric acid with copper.
State, what is observe when nitric acid is kept in a reagent bottle for a long time.
Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200oC?
Explain why nitric acid is kept in a reagent bottle for a long time.
