Advertisements
Advertisements
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.
Advertisements
उत्तर
- A: Conc. sulphuric acid
B: Sodium nitrate or Potassium nitrate
C: Nitric acid - \[\ce{4HNO3 ->[Heat][Sunlight] 4NO2 + 2H2O + O2}\]
- \[\ce{Cu + 4HNO3 -> Cu(NO3)2 + 2NO2 + 2H2O}\]
संबंधित प्रश्न
What is passive iron?
Ammonia is used in the Ostwald process.
Name the oxidising agent used in this process.
Ammonia is used in the Ostwald process.
What is the ratio of ammonia and air taken in this process?
Name the Following:
Salt used in the laboratory to prepare nitric acid
Can we use conc. HCl in place of Conc. H2SO4 ?
Give reason for the following:
Commercial nitric acid is yellow in colour, but when it is diluted with water, it turns colourless.
How will you prepare Aqua regia from nitric acid?
Write the equation for the laboratory preparation of nitric acid from potassium nitrate and concentrated sulphuric acid.
Write the equation for the reaction of dilute nitric acid with copper.
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
