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Name the reagent which is able to dissolve gold and platinum? |
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Answer» Thanks everyone...... for answering my questions.... Gold and platinum don\'t react with almost any chemical . And aqua regia is the chemical mixture 1 . Hydrochloric acid and 3 parts of nitric acid this mixture can be dissolve gold and platinum . Thank you Aqua Regis(formed by 3 parts of nitric acid and 1 HCL) Gold and Platinum belong to class of noble metals in the sense that gold and platinum do not react with almost any chemical reagent.Aqua Regia is the chemical mixture which consists of 3 parts of concentrated hydrochloric acid and 1 part of concentrated nitric acid and this mixture can dissolve gold and platinum. The reaction is as follows:Au + HNO3\xa0+ 4 HCl\xa0→\xa0HAuCl4\xa0+ NO + 2 H2O "regal water" or "king\'s water" 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\xa0named\xa0by alchemists because it can\xa0dissolve\xa0the noble metals,\xa0gold and platinum |
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