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प्रश्न
How can 68% nitric acid be concentrated to 98% nitric acid?
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उत्तर
98% nitric acid is obtained by distilling 68% nitric acid with conc. H2SO4 under reduced pressure. The function of H2SO4 is to absorb water.
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संबंधित प्रश्न
Explain the following:
Concentrated nitric add appears yellow when it is left standing in a glass bottle.
Name the products formed when carbon and conc. nitric acid is heated.
Ammonia is used in the Ostwald process.
What is the ratio of ammonia and air taken in this process?
Write a balanced equation and name the products formed when cupric oxide reacts with nitric acid.
What is meant by the following term?
Fuming nitric acid
Can we use conc. HCl in place of Conc. H2SO4 ?
Give reason for the following:
Nitric acid is used in purification of gold.
What do you observe when?
Scrap zinc is heated with conc. HNO3?
State the conditions for the oxidation of ammonia to nitrogen monoxide [nitric oxide], in the manufacture of nitric acid by Ostwald's process. Write the balanced equcation for the reaction.
Complete the table:
| Name of Process | Inputs | Equation | Output |
| Ammonia + Air | Nitric acid |
