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प्रश्न
Give reason for the following:
Conc. Nitric acid renders iron passive.
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उत्तर
Concentrated nitric acid renders iron passive because of the formation of extremely thin, unreactive, protective layer of insoluble metallic oxide on the surface which stops further reaction.
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संबंधित प्रश्न
Mention three important uses of nitric acid. Give the property of nitric acid involved in the use.
Name the Following:
Gas obtained by treating manganese with 1% nirtric acid.
Name the Following:
Salt used in the laboratory to prepare nitric acid
Brown ring disappear if the test tube is disturbed.
Give reason for the following:
Aluminum does not react with nitric acid of any concentration.
Give reason for the following:
Aqua regia dissolves gold and platinum.
Complete and balance the following equation :
HNO3 + FeSO4 + H2SO4 → ______________
Fill in the blank with appropriate word/words.
98% nitric acid is obtained by distilling 68% nitric acid with ________ under ______
Write the equation to show the reaction between the following:
Dilute nitric acid to produce carbon dioxide.
Identify the gas evolved when sulphur is treated with concentrated nitric acid.
