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प्रश्न
How can 68% nitric acid be concentrated to 98% nitric acid?
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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
Write a balanced equation and name the products formed when cupric oxide reacts with nitric acid.
Write an equation for the following conversions A, B, C and D.
How will you prepare the following from nitric acid?
Lead nitrate
Give reason for the following:
Nitric acid is used in purification of gold.
Complete and balance the following equation:
Cu + HNO3 → NO2 + ________+ _________
Write the balanced equation for the equation preparation of nitric acid from potassium nitrate.
Explain the following :
An all glass apparatus is used in the laboratory preparation of nitric acid.
Write a balanced equation for following :
Laboratory preparation nitric acid.
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
