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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.
\[\ce{Fe + 6HNO3 -> Fe(NO3)3 + 3H2O + 3NO2}\]
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संबंधित प्रश्न
Give a balanced chemical equation for Laboratory preparation of Nitric acid.
Explain the following:
An all-glass apparatus is used in the laboratory preparation of nitric acid.
Write a balanced equation for the action of heat on a mixture of copper and concentrated nitric acid.
What is the type of salt formed when the reactants are heated at a suitable temperature for the preparation of nitric acid?
Name the products formed when dilute HNO3 is added to copper.
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
Give reason for the following:
Concentrated nitric acid is brown in colour.
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution
What is the property of nitric acid which allows it to react with copper?
