2 mL each of concentrated HCl, HNO3 and a mixture of concentrated HCl and concentrated HNO3 in the ratio of 3 : 1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. The metal could be
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As per the given question, the Aqua regia is the given mixture to test the metals in test tubes A, B and C. A mixture of three parts of concentrated hydrochloric acid and one part of concentrated nitric acid(Aqua regia - 3:1 ratio) is capable of dissolving gold.
Gold is a noble metal that cannot dissolve in dilute acids and dissolves only in aqua regia.
Step-by-step explanation:
AU { GOLD}
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the metal is Au
Step-by-step explanation:
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