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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
Write a balanced chemical equation for the following:
Action of cold and dilute Nitric acid on Copper
Name the products formed when carbon and conc. nitric acid is heated.
How will you prepare the following from nitric acid?
copper nitrate
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
Give reason for the following:
Concentrated nitric acid is a stronger oxidizing agent.
Write balanced equation and name the product formed when :
Zinc reacts with dilute nitric acid.
Give reason for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitatre should not be heated very strongly, above 200°C
Copy and complete the following table relating to important industrial processes output refers to the product of the process not the intermediate steps.
| Name of process | Inputs | Catalyst | Equation for catalysed reaction | Output |
| Haber process | Hydrogen + | |||
|
Ammonia + |
Nitric acid |
What would you observe in the following case:
Copper is heated with concentrated nitric acid in a hard glass test tube.
From the following list of substances, choose one substance in the case which matches the description given below:
Ammonium nitrate, calcium hydrogen carbonate, copper carbonate, lead nitrate, potassium nitrate, sodium carbonate, sodium hydrogen carbonate, zinc carbonate.
A Substance that gives off only oxygen when heated.
