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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
Ammonia is used in the Ostwald process.
What is the ratio of ammonia and air taken in this process?
The nitrate salt which does not give a mixture of NO2 and O2 on heating is ______.
How is nitric acid prepared in a laboratory?
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
Fill in the blank with appropriate word/words.
Aqua regia is a mixture of _______ and________
Fill in the blank with appropriate word/words.
3 Cu + 8 HNO3 (dilute) → _______ + 4H2O + _________
Describe what you see when concentrated nitric acid is added to copper.
Explain the following :
An all glass apparatus is used in the laboratory preparation of nitric acid.
Write a balanced equation for following :
Laboratory preparation nitric acid.
A dilute acid B does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper. Identify B. Write the equation with copper.
