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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
Write a balanced chemical equation for the following:
Action of cold and dilute Nitric acid on Copper
Write the equations involved in Ostwald process.
Describe the Ostwald's process for the manufacture of nitric acid with labeled diagram.
Complete and balance the following equation :
Pt + HNO3 + HCl → ___________
Give two chemical tests to distinguish between dilute nitric acid and hydrochloric acid.
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.
Describe what you see when concentrated nitric acid is added to copper.
The first step in the manufacture of nitric acid is the catalytic oxidation of ammonia. What is the name of the catalyst?
Name the gas evolved:
The gas produced on heating sodium nitrate.
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
