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प्रश्न
How is nitric acid prepared in laboratory?
उत्तर
In laboratory, nitric acid is prepared by heating a mixture of concentrated sulphuric acid and potassium or sodium nitrate with Conc. H2SO4 at 200°C.
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संबंधित प्रश्न
Ammonia is used in the Ostwald process.
Give the sources of reactants used in this process.
Give two chemical equations for the following:
Reactions of nitric acid with non-metals
why is freshly prepared ferrous sulphate solution used for testing the nitrate radical in the brown ring test?
The action of heat on the blue crystalline solid X gives a reddish brown gas Y, a gas which re-lights a glowing splint and leaves a black residue. When gas Z, which has a rotten egg smell, is passed through a solution of X, a black ppt. is formed.
- Identify X, Y and Z.
- Write the equation for action of heat on X.
- Write the equation between solution X and gas Z.
Write the equations involved in Ostwald process.
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
During a thunderstorm, the rainwater contains nitric acid. The nitric acid is formed as a result of three chemical reactions. Describe or write balanced chemical equation for these three reactions.
Account for the yellow colour that appears in concentrated nitric acid when it is left standing in an ordinary glass bottle.
Write the equation for the reaction of dilute nitric acid with copper.
Give a balanced equation for the following reaction:
Copper reacts with concentrated nitric acid.
