Question

what is aqua regia....?​

Answer 1

Aqua regia is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange (sometimes red) fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.

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Answer 2

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Aqua regia (Latin for ''Royal Water'') 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. Aqua regia is highly corrosive, fuming liquid. It is one of the few reagents that is able to dissolve gold and Platinum

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