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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
Give a balanced chemical equation for Laboratory preparation of Nitric acid.
What is the type of salt formed when the reactants are heated at a suitable temperature for the preparation of Nitric acid?
Name the products formed when carbon and conc. nitric acid is heated.
Write a balanced equation and name the products formed when cupric oxide reacts with nitric acid.
How will you prepare the following from nitric acid?
Lead nitrate
Name the oxide of nitrogen which turns brown on exposure to air. How is it prepared?
Name the Following:
Gas obtained by treating manganese with 1% nirtric acid.
Name the product, catalyst and approximate temperature maintained in Ostwald's process. How is the temperature maintained in the Ostwald's process?
Give the name of a soluble lead salt and write the eqution for the action of heat on this salt. Write the equation for the preparation of nitric acid from potassium nitrate.
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.
