The composition of aquaragia is
Dil HCI : conc hno³ 3:1
Conc hno2 :dil HCI 3:1
Conc HCI:dil hno3 3:1
Dil HCI: conc hno³ 1'3
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Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3 : 1. It can dissolve gold even though neither of these acids can do so alone.
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