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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
Give a balanced chemical equation for Laboratory preparation of Nitric acid.
Ammonia is used in the Ostwald process.
Name the catalyst used in the process.
Name the Following:
Product obtained by heating concentrated nitric acid.
Name the Following:
Two coloured nitrates.
Nitric acid cannot be concentrated beyond 68% by the distillation of a dilute solution of HNO3, State the reason.
Give three equations of the reaction to prove that nitric acid is an acid.
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
What happen when (Given balanced equation):
Limestone reacts with nitric acid?
Complete and balance the following equation :
FeSO4 + NO + H2O → ______________
Explain the following:
Dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.
