Question

Which of the following acid is used to make Aqua Regia?

Answer 1

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.

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Answer 2

Answer:  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.

Explanation:   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. It is a red or yellowish liquid. It is extremely corrosive and can cause skin burns.  Aqua regia is frequently used to dissolve gold and platinum. It and other similar mixtures are used in analytical procedures for the solution of certain iron ores, phosphate rocks, slags, nickel-chromium alloys, antimony, selenium, and some of the less-soluble sulfides, such as those of mercury, arsenic, cobalt, and lead.