Advertisements
Advertisements
प्रश्न
Give reason for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitatre should not be heated very strongly, above 200°C
Advertisements
उत्तर
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitrate should not be heated very strongly, above 200°C because a higher temperature can cause following problems:
1. Nitric acid would decompose to form nitrogen dioxide.
2. Sodium sulphate is formed which may stick to the glass and cannot be removed easily.
3. The glass apparatus may break.
APPEARS IN
संबंधित प्रश्न
How will you prepare the following from nitric acid?
Lead nitrate
Name the Following:
Salt used in the laboratory to prepare nitric acid
What are the reactants required for Ostwald process and what are their sources?
How can 68% nitric acid be concentrated to 98% nitric acid?
Give reason for the following:
Concentrated nitric acid is brown in colour.
Complete and balance the following equation :
Pt + HNO3 + HCl → ___________
Complete and balance the following equation :
HNO3 + FeSO4 + H2SO4 → ______________
Dilute nitric acid is generally considered a typical acid except for its reaction with metals. In what way is dilute nitric acid different from other acids when it reacts with metals?
Write the equation for the reaction:
Aluminum, Nitride and Water.
Explain the following:
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.
