Advertisements
Advertisements
प्रश्न
How can 68% nitric acid be concentrated to 98% nitric acid?
Advertisements
उत्तर
98% nitric acid is obtained by distilling 68% nitric acid with conc. H2SO4 under reduced pressure. The function of H2SO4 is to absorb water.
APPEARS IN
संबंधित प्रश्न
What is the purpose of Conc. H2SO4 in the above preparation?
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:
Lighting is a blessing in disguise.
Give reason for the following:
Concentrated nitric acid is brown in colour.
What do you observe when?
Conc. HNO3 drops on the skin of a person?
Complete and balance the following equation :
Fe + HNO3(conc.) → _____________
Write a balanced equation for the production of nitrogen dioxide using copper.
Write balanced equation for the reaction between nitrogen and oxygen, when lightning strikes.
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.
Write a balanced equation for following :
Laboratory preparation nitric acid.
