Aqua regia, which can dissolve gold and platinum, is a mixture of:

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Aqua regia (royal water) is a 3:1 mixture by volume of concentrated HCl and HNO₃. It generates nascent chlorine and nitrosyl chloride, which oxidize gold and platinum to soluble chloro complexes (e.g., HAuCl₄). Neither acid alone can dissolve these noble metals. Used for cleaning glassware and in etching. Must be prepared fresh and handled with extreme care.

Aqua regia, which can dissolve gold and platinum, is a mixture of: MCQ with Answer and Explanation

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