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प्रश्न
How will you prepare the following from nitric acid?
Aqua regia
उत्तर
A mixture of 3 parts conc. \[\ce{HCl}\] and one part conc. \[\ce{HNO3}\] 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
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