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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.
\[\ce{4NH3 + 5O2 ->[Pt][800^\circ C]4NO + 6H2O + Heat}\]
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संबंधित प्रश्न
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.
Name the Following:
Salt referred to as chile saltpeter.
What is the purpose of Conc. H2SO4 in the above preparation?
In which ratio reactants are taken in Ostwald process?
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
What happen when (Given balanced equation):
Nitric acid is added to washing soda and the resulting gas is passed through a freshly prepared lime water?
Choose the correct answer from the option given below:
The catalyst used in the manufacture of HNO3 by Ostwald process is
Why does pure nitric acid take on a yellowish brown colour when exposed to light?
What happens when
NH3 solution is added to CuSO4 solution drop by drop and then in excess.
