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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].
\[\ce{HNO3 + 3HCl -> NOCl +2H2O +2[Cl]}\]
संबंधित प्रश्न
Give two chemical equations for the following:
Nitric acid acting as the oxidizing agent.
Write a balanced equation and name the products formed when zinc reacts with dilute nitric acid.
What is meant by the following term?
Fuming nitric acid
Brown ring disappear if the test tube is disturbed.
Give reason for the following:
Nitric acid is used in purification of gold.
Give reason for the following:
Aqua regia dissolves gold and platinum.
What do you observe when?
Scrap zinc is heated with conc. HNO3?
Choose the correct answer from the option given below :
When treated with nitric acid which of the following liberate hydrogen?
Give the name of a soluble lead salt and write the eqution for the action of heat on this salt. Write the equation for the preparation of nitric acid from potassium nitrate.
Write a balanced equation for following :
Laboratory preparation nitric acid.
