Advertisements
Advertisements
प्रश्न
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
Advertisements
उत्तर
The glass apparatus is purposely used because the nitric acid produced reacts with practically every material, including cork and rubber. Glass is the lone exception. Nitric acid in its pure form is unstable when exposed to sunlight.
\[\ce{4HNO3 ->[\Delta][Sun light] 4NO2 + 2H2O + O2}\]
APPEARS IN
संबंधित प्रश्न
Explain the following:
An all-glass apparatus is used in the laboratory preparation of nitric acid.
Ammonia is used in the Ostwald process.
Why is quartz used in this process?
Brown ring disappear if the test tube is disturbed.
Give reason for the following:
Commercial nitric acid is yellow in colour, but when it is diluted with water, it turns colourless.
Give reason for the following:
Aqua regia dissolves gold and platinum.
Give reason for the following:
Concentrated nitric acid is brown in colour.
Write balanced equation and name the product formed when :
Concentrated nitric acid is heated.
Complete and balance the following equation :
Pt + HNO3 + HCl → ___________
Choose the correct answer from the option given below :
When treated with nitric acid which of the following liberate hydrogen?
Write a balanced equation for the production of nitrogen dioxide using copper.
