Which of the following is used for the dissol | vedclass

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(A) Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid $(HCl)$ and concentrated nitric acid $(HNO_3)$ in the ratio of $3:1$ re

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Aqua regia

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(A) Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid $(HCl)$ and concentrated nitric acid $(HNO_3)$ in the ratio of $3:1$ respectively.It is a highly corrosive,fuming liquid that is one of the few reagents capable of dissolving noble metals like gold and platinum.Gold does not dissolve in either acid alone,but the combination produces nitrosyl chloride $(NOCl)$ and chlorine $(Cl_2)$,which react with gold to form soluble gold chloride $(AuCl_3)$.

Which of the following is used for the dissolution of gold?

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