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प्रश्न
Give reason for the following:
Conc. Nitric acid renders iron passive.
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
What is the type of salt formed when the reactants are heated at a suitable temperature for the preparation of Nitric acid?
How will you prepare the following from nitric acid?
Magnesium nitrate
Brown ring disappear if the test tube is disturbed.
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Lighting is a blessing in disguise.
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
What happens when (Given balanced equation):
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FeSO4 + NO + H2O → ______________
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Furning nitric acid is obtained by dissolving an excess of _______ in conc. Nitric acid
Fill in the blank with appropriate word/words.
98% nitric acid is obtained by distilling 68% nitric acid with ________ under ______
Write the equation for the reaction of dilute nitric acid with copper.
