Advertisements
Advertisements
प्रश्न
What do you see when concentrated nitric acid is added to copper?
Advertisements
उत्तर
When concentrated nitric acid is added to copper brown fumes of nitrogen dioxide are observed.
APPEARS IN
संबंधित प्रश्न
Ammonia is used in the Ostwald process.
What is the ratio of ammonia and air taken in this process?
Ammonia is used in the Ostwald process.
Why is quartz used in this process?
Name the process used for the manufacture of nitric acid.
How can 68% nitric acid be concentrated to 98% nitric acid?
Brown ring disappear if the test tube is disturbed.
Choose the correct answer from the option given below :
Concentrated nitric acid oxidises phosphorus to :
Name (formula is not acceptable) the gas produced in the following reaction:
On warming ammonium sulphate with sodium hydroxide solution.
Explain, why only all glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200oC?
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
