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प्रश्न
Explain with the help of a balanced equation, the brown ring test for nitric acid.
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उत्तर
Brown ring test -
Nitric acid in a test tube is taken and then and then freshly prepared ferrous sulphate solution is added. Concentrated H2SO4 is then added carefully down the sides of the test tube, dark brown ring is formed at the junction of two layers.
\[\ce{6FeSO4 + 3H2SO4 + 2HNO3 -> 3Fe2(SO4)3 + 2NO + 4H2O}\]
\[\ce{FeSO4 + NO + 5H2O -> \underset{\text{Hydrated nitrosoferrous sulphate(brown ring)}}{[Fe(NO)(H2O)5]SO4}}\]
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संबंधित प्रश्न
Name the gas evolved when the following mixtures are heated.
Sodium Nitrite and Ammonium Chloride
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
Give two chemical equations for the following:
Nitric acid acting as the oxidizing agent.
Why is freshly prepared ferrous sulphate solution used for testing the nitrate radical in the brown ring test?
How is nitric acid prepared in laboratory?
In which ratio reactants are taken in Ostwald process?
Give reason for the following:
Concentrated nitric acid is a stronger oxidizing agent.
Write balanced equation and name the product formed when :
Cupric oxide reacts with nitric acid.
What happen when (Given balanced equation) :
Nitric acid is dissolved in large amount of water?
Write a balanced equation for following :
Laboratory preparation nitric acid.
