What is the final chemical form of Gold (Au) | vedclass

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Question

(D) When gold $(Au)$ is dissolved in aqua-regia,it reacts to form chloroauric acid $(HAuCl_4)$.The chemical reaction is as follows:$Au + 3HCl + HNO_3

Vedclass · Accepted Answer

$\left[AuCl_4\right]^{-}$

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(D) When gold $(Au)$ is dissolved in aqua-regia,it reacts to form chloroauric acid $(HAuCl_4)$.The chemical reaction is as follows:$Au + 3HCl + HNO_3 \rightarrow HAuCl_4 + NO + 2H_2O$In an aqueous solution,chloroauric acid dissociates to form the tetrachloroaurate$(III)$ ion:$HAuCl_4 \rightarrow H^{+} + \left[AuCl_4\right]^{-}$Therefore,the final chemical form of gold in the solution is the $\left[AuCl_4\right]^{-}$ ion.

What is the final chemical form of Gold $(Au)$ when it is dissolved in aqua-regia?

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