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प्रश्न
Give reason for the following:
Concentrated nitric acid is brown in colour.
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उत्तर
Concentrated nitric acid is brown in colour due to the presence of nitrogen dioxide formed by heating the acid.
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संबंधित प्रश्न
Name the gas evolved when the following mixtures are heated.
Sodium nitrite and ammonium chloride.
Name the products formed when dilute HNO3 is added to copper.
Give reason for the following:
Conc. Nitric acid renders iron passive.
Fill in the blank with appropriate word.
Furning nitric acid is obtained by dissolving an excess of _______ in conc. Nitric acid
What do you see when concentrated nitric acid is added to copper?
Write the equation to show the reaction between the following:
Dilute nitric acid to produce carbon dioxide.
Write a chemical equation to illustrate the acidic nature of nitric acid.
Name the gas evolved:
The gas produced on heating sodium nitrate.
What would you observe in the following case:
Copper is heated with concentrated nitric acid in a hard glass test tube.
Write a balanced equation for following :
Laboratory preparation nitric acid.
