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प्रश्न
What is : aqua regia
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उत्तर
Aqua Regia: Conc. Nitric acid (1part by volume) when mixed with conc. Hydrochloric acid (3 parts by volume) gives a mixture called aqua regia. It means Royal water .
HNO3 +3HCl → NOCl +2H2O +2[Cl]
संबंधित प्रश्न
What is the fixation of Nitrogen?
Give reasons for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitrate should not be heated very strongly above 200°C.
Write a balanced equation and name the products formed when sodium hydrogen carbonate is added to nitric acid.
What is the oxidizing agent in ostwald process ?
Write down the word equation or balanced equation for the action of concentrated nitric acid on copper.
Write the equation to show the reaction between the following:
Between copper and concentrated nitric acid.
Write equation to show the reaction between the following:
Copper and concentrated nitric acid.
Write balanced equation to show the reaction between the sulphur and hot concentrated nitric acid.
Write a balanced equation for following :
Action of conc. Nitric acid on sulphur
The diagram given below is a representation of the Industrial preparation of Nitric acid by Ostwald’s process. With respect to the process answer the following questions:
- Write the temperature and the catalyst required during the catalytic oxidation of ammonia.
- Give balanced chemical equation for the reaction occurring duringthe conversion of nitrogen dioxide to nitric acid.
