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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
Name the gas that is produced in the given cases :
Sulphur is oxidized by concentrated nitric acid.
Nitric acid cannot be concentrated beyond 68% by the distillation of a dilute solution of HNO3. State the reason.
Write the balanced equation for the following:
Action of heat on AgNO3
Write down the word equation or balanced equation for the action of concentrated nitric acid on copper.
Write equation to show the reaction between the following:
Copper oxide and dilute nitric acid.
Write balanced equation to show the reaction between the sulphur and hot concentrated nitric acid.
Fill in the blank using the appropriate words given below:
Cold, dilute nitric acid reacts with copper to give ______.
Fill in the blank using the appropriate words given below:
Hot, concentrated nitric add reacts with sulphur to form ______.
What happens when
Caustic soda solution is added to Cu(NO3)2 solution and product boiled.
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.
