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प्रश्न
How can 68% nitric acid be concentrated to 98% nitric acid?
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.
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संबंधित प्रश्न
Name the Following:
Salt used in the laboratory to prepare nitric acid
Name the catalyst used in Ostwald process.
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
Give reason for the following:
Concentrated nitric acid is brown in colour.
Write balanced equation for the preparation of nitric acid from potassium nitrate.
Write balanced equation for the reaction between nitrogen and oxygen, when lightning strikes.
What is the special feature of the apparatus that is used in the laboratory preparation of nitric acid?
Identify the gas evolved when sulphur is treated with concentrated nitric acid \[\ce{NH3}\].
Write a balanced equation for following :
Laboratory preparation nitric acid.
Lead nitrate decomposes on heating to give ______.
