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प्रश्न
Name the oxide of nitrogen which turns brown on exposure to air. How is it prepared?
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उत्तर
Oxide is NO (Nitric oxide).
This turns brown (NO2).
Preparation:
(i) Nitrogen and oxygen combine in the atmosphere during lightning discharge.
\[\ce{N2 + O2 <=> 2NO}\]
(ii) By oxidation of ammonia.
\[\ce{4NH3 + 5O2 ->[Pt][800^\circ C]4NO + 6H2O + Heat}\]
संबंधित प्रश्न
Give a balanced chemical equation for Laboratory preparation of Nitric acid.
Explain the following:
An all-glass apparatus is used in the laboratory preparation of nitric acid.
Write an equation for the following conversions A, B, C and D.
How will you prepare the following from nitric acid?
Ferric nitrate
Mention three important uses of nitric acid. Give the property of nitric acid involved in the use.
- Name the process used for the manufacture of nitric acid.
- What are the reactants required for it and what are their sources?
- In which ratio reactants are taken in this process?
- Name the catalyst used in the process.
- What is the oxidizing agent in this process?
- Write the equations involved.
Give reason for the following:
Conc. Nitric acid renders iron passive.
Complete and balance the following equation :
SO2 + HNO3 → ______________
When nitric acid is prepared by the action of concentrated sulphuric acid on potassium nitrate. what is the special feature of the apparatus used?
What is the property of nitric acid which allows it to react with copper?
