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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
Explain the following:
An all-glass apparatus is used in the laboratory preparation of nitric acid.
What is passive iron?
Ammonia is used in the Ostwald process.
Name the oxidising agent used in this process.
Write balanced equation and name the product formed when :
Zinc reacts with dilute nitric acid.
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
Complete and balance the following equation :
C + HNO3 → ___________
Complete and balance the following equation :
HNO3 + FeSO4 + H2SO4 → ______________
Write balanced equation for the preparation of nitric acid from potassium nitrate.
Why does pure nitric acid take on a yellowish brown colour when exposed to light?
Name the gas evolved:
The gas produced on heating sodium nitrate.
