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प्रश्न
Give reason for the following:
Concentrated nitric acid is brown in colour.
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
Write balanced chemical equations for Action of hot and concentrated Nitric acid on copper
How will you prepare the following from nitric acid?
Ferric nitrate
Name the oxide of nitrogen which turns brown on exposure to air. How is it prepared?
Explain with the help of a balanced equation, the brown ring test for nitric acid.
Brown ring disappear if the test tube is disturbed.
Give reason for the following:
Nitric acid is used in purification of gold.
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
Name the product, catalyst and approximate temperature maintained in Ostwald's process. How is the temperature maintained in the Ostwald's process?
Name the gas evolved:
The gas produced on heating sodium nitrate.
Explain the following :
An all glass apparatus is used in the laboratory preparation of nitric acid.
