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What is aqua regia ?. Ans: Hint : Aqua regia is a highly corrosive mixture of nitric and hydrochloric acids that is employed as an etchant, in various analytical chemical operations, and in gold refinement. Gold, platinum, and palladium dissolve in aq... aqua regia, mixture of concentrated nitric and hydrochloric acids , usually one part of the former to three parts of the latter by volume. This mixture was given its name (literally, “royal water”) by the alchemists because of its ability to dissolve gold. Aqua regia is a fascinating yet dangerous liquid. Aqua Regia is a Latin word meaning “royal water” and is a mixture of two acids. The chemical consists of two acids, nitric acid (HNO 3) and hydrochloric acid (HCl), mixed in a 3:1 ratio with three parts of HCl and one part of HNO 3. Here, we will discuss the concept, how it dissolves gold, precautions and other facts along with important questions. Aqua regia is known as royal water because it has the ability to dissolve various metals ... Aqua Regia : Conc. Nitric acid (1part by volume) when mixed with conc. Hydrochloric acid (3 parts by volume) gives a mixture called aqua regia . It means Royal water .
