Advertisements
Advertisements
प्रश्न
Why is the temperature maintained at 200°C in the above reaction?
Advertisements
उत्तर
The temperature is maintained at 200°C in the above reaction to avoid following problems:
- Nitric acid would decompose at high temperature.
- Potassium or sodium sulphate is formed which will stick to the walls of glass and cannot be removed be easily.
- The glass apparatus may break at high temperature.
APPEARS IN
संबंधित प्रश्न
Give two chemical equations for the following:
Reactions of nitric acid with non-metals.
Name the Following:
Two coloured nitrates.
Name the process used for the manufacture of nitric acid.
In which ratio reactants are taken in Ostwald process?
Why is freshly prepared ferrous sulphate solution used in the ring test?
Give reason for the following:
Concentrated nitric acid is brown in colour.
Describe what 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.
The figure given below illustrates the apparatus used in the laboratory preparation of nitric acid:
(i) Name A (a liquid), B( a Solid) and C(a liquid).
(ii) write the balanced chemical equation to show how nitric acid undergoes decomposition.
(iii) Write the balanced chemical equation for the reaction in which copper is oxidized by concentrated nitric acid.
Identify the gas evolved when sulphur is treated with concentrated nitric acid.
