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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
Name the gas evolved when the following mixtures are heated.
Sodium nitrite and ammonium chloride.
Ammonia is used in the Ostwald process.
Give the sources of reactants used in this process.
Why is freshly prepared ferrous sulphate solution used for testing the nitrate radical in the brown ring test?
Can we use conc. HCl in place of Conc. H2SO4 ?
Write the equations involved in Ostwald process.
Write balanced equation and name the product formed when :
Concentrated nitric acid is heated.
Fill in the blank with appropriate word/words.
3 Cu + 8 HNO3 (dilute) → _______ + 4H2O + _________
Write the balanced equation for the equation preparation of nitric acid from potassium nitrate.
Explain the following :
An all glass apparatus is used in the laboratory preparation of nitric acid.
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution
