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प्रश्न
What is passive iron?
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उत्तर
Iron becomes inert when reacted with nitric acid due to the formation of an extremely thin layer of insoluble metallic oxide, which stops the reaction.
\[\ce{Fe + 6HNO3 -> Fe(NO3)3 + 3H2O + 3NO2}\]
संबंधित प्रश्न
Give a balanced chemical equation for Laboratory preparation of Nitric acid.
Ammonia is used in the Ostwald process.
What is the ratio of ammonia and air taken in this process?
Mention three important uses of nitric acid. Give the property of nitric acid involved in the use.
Why is freshly prepared ferrous sulphate solution used for testing the nitrate radical in the brown ring test?
Name the Following:
Salt used in the laboratory to prepare nitric acid
Complete and balance the following equation :
FeSO4 + NO + H2O → ______________
Name (formula is not acceptable) the gas produced in the following reaction:
On warming ammonium sulphate with sodium hydroxide solution.
Explain the following:
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution
Write the equation for the reaction of dilute nitric acid with copper.
