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प्रश्न
Explain the following:
An all-glass apparatus is used in the laboratory preparation of nitric acid.
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उत्तर
Nitric acid serves as a potent oxidising agent and therefore has the ability to corrode rubber or other types of stoppers. To prevent corrosion, we use all-glass equipment.
संबंधित प्रश्न
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
Give the chemical name and formula of the substance formed as a brown ring in the test for nitrate radical.
What happens when (Given balanced equation) :
Sulphar is added to hot and conc. HNO3?
Complete and balance the following equation :
C + HNO3 → ___________
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
Explain, why only all glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
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 |
Explain the following:
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.
Write a balanced equation for following :
Laboratory preparation nitric acid.
Lead nitrate decomposes on heating to give ______.
