A mixture of three parts of conc. HCl and one part of conc. HNO3 is aqua regia. It gives nascent chlorine and can dissolve gold and platinum [noble metals].

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What is aqua regia?

Question

What is aqua regia?

Very Short Answer

Solution

A mixture of three parts of conc. HCl and one part of conc. HNO₃ is aqua regia. It gives nascent chlorine and can dissolve gold and platinum [noble metals].

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Group 17 Elements - The Halogen Family - Hydrogen Chloride

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Chapter 10: Study of Compounds: Nitric Acid - Intext Question [Page 199]