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प्रश्न
How will you prepare the following from nitric acid?
Aqua regia
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उत्तर
A mixture of 3 parts conc. HCl and one part conc. HNO3 is called aqua regia. It gives nascent chlorine and can dissolve gold and platinum [noble metals].
\[\ce{HNO3 + 3HCl -> NOCl +2H2O +2[Cl]}\]
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संबंधित प्रश्न
Write a balanced equation and name the products formed when zinc reacts with dilute nitric acid.
How can 68% nitric acid be concentrated to 98% nitric acid?
Give three equations of the reaction to prove that nitric acid is an acid.
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
What happen when (Given balanced equation):
Limestone reacts with nitric acid?
Complete and balance the following equation :
HNO3 + FeSO4 + H2SO4 → ______________
Choose the correct answer from the option given below :
Nitric acid on standing develops brownish colour which may be attributed to the presence of :
Name the compounds required for the laboratory preparation of nitric acid.
Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200oC?
Explain why nitric acid is kept in a reagent bottle for a long time.
