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प्रश्न
Write the equations involved in Ostwald process.
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उत्तर
\[\ce{4NH3 + 5O2 ->[Platinum gangue][800°C] 4NO + 6H2O + Heat }\]
\[\ce{2NO + O2 ->[50°C] 2NO2}\]
\[\ce{4NO2 + O2 + 2H2O -> 4HNO3}\]
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संबंधित प्रश्न
Name the gas evolved when the following mixtures are heated.
Sodium Nitrite and Ammonium Chloride
Name the products formed when dilute HNO3 is added to copper.
Ammonia is used in the Ostwald process.
Name the catalyst used in the process.
Explain with the help of a balanced equation the brown ring test for nitric acid.
Give reason for the following:
Lighting is a blessing in disguise.
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
Complete and balance the following equation :
C + HNO3 → ___________
Name the compounds required for the laboratory preparation of nitric acid.
Write a chemical equation to illustrate the acidic nature of nitric acid.
X, Y and Z are three crystalline solids that are soluble in water and have a common anion.
To help you to identify X, Y and Z, you are provided with the following experimental observations. Copy and complete the corresponding inferences in (a) to (e).
- A reddish-brown gas is obtained when X, Y and Z are separately warmed with concentrated sulphuric acid and copper turning added to the mixture.
INFERENCE 1: The common anion is the ______ ion. - When X is heated, it melts and gives off only one gas which re-lights a glowing splint.
INFERENCE 2: The cation in X is either ______ or ______. - The action of heat on Y produces a reddish-brown gas and yellow residue which fuses with a glass of the test tube.
INFERENCE 3: The metal ion present in Y is the ______ ion. - When Z is heated, it leaves no residue. Warming Z with sodium hydroxide solution liberates a gas which turns moist red litmus paper blue.
INFERENCE 4: Z contains the ______ cation. - Write the equations for the following reactions:
- X and concentrated sulphuric acid (below 200°C). (One equation only for either of the cations given in INFERENCE 2)
- The action of heat on Y.
- Concentrated nitric acid is added to copper turnings kept in a beaker.
