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प्रश्न
Give reason for the following:
Commercial nitric acid is yellow in colour, but when it is diluted with water, it turns colourless.
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उत्तर
Commercial nitric acid is yellow in colour because of presence of nitrogen dioxide but when it is diluted with water, it turns colourless because nitrogen dioxide get dissolved in water.
संबंधित प्रश्न
Name the oxide of nitrogen which turns brown on exposure to air. How is it prepared?
Why is freshly prepared ferrous sulphate solution used for testing the nitrate radical in the brown ring test?
Name the Following:
Salt used in the laboratory to prepare nitric acid
What is the purpose of Conc. H2SO4 in the above preparation?
Name the catalyst used in Ostwald process.
Describe the Ostwald's process for the manufacture of nitric acid with labeled diagram.
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
What do you observe when?
Conc. HNO3 drops on the skin of a person?
Write balanced equation for the preparation of nitric acid from potassium nitrate.
Name the gas evolved:
The gas produced on heating sodium nitrate.
