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प्रश्न
Give reason for the following:
Aqua regia dissolves gold and platinum.
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उत्तर
\[\ce{3HCl + HNO3 -> 2H2O + NOCl + 2[Cl]}\]
Gold in Aqua regia :
\[\ce{Au + 4[Cl] -> AuCl3}\]
Platinum in Aqua regia :
\[\ce{Pt + 4[Cl] -> PtCl4 }\]
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संबंधित प्रश्न
Explain the following:
Concentrated nitric add appears yellow when it is left standing in a glass bottle.
Give two chemical equations for the following:
Nitric acid acting as the oxidizing agent.
How will you prepare the following from nitric acid?
copper nitrate
The nitrate salt which does not give a mixture of NO2 and O2 on heating is ______.
How is nitric acid prepared in laboratory?
In which ratio reactants are taken in Ostwald process?
What happens when (Given balanced equation) :
Sulphar is added to hot and conc. HNO3?
Write balanced equation for the preparation of nitric acid from potassium nitrate.
Name the product, catalyst and approximate temperature maintained in Ostwald's process. How is the temperature maintained in the Ostwald's process?
Name the compounds required for the laboratory preparation of nitric acid.
