What is the product formed when Au reacts wit | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Aqua regia is a mixture of concentrated $HCl$ and concentrated $HNO_3$ in a $3:1$ ratio.Gold dissolves in aqua regia due to the oxidizing action o

Vedclass · Accepted Answer

$HAuCl_4$

Vedclass · Answer

(D) Aqua regia is a mixture of concentrated $HCl$ and concentrated $HNO_3$ in a $3:1$ ratio.Gold dissolves in aqua regia due to the oxidizing action of $HNO_3$ and the complexing ability of $Cl^-$ ions.The reaction proceeds as follows:$Au(s) + 3NO_3^-(aq) + 6H^+(aq) \rightarrow Au^{3+}(aq) + 3NO_2(g) + 3H_2O(l)$$Au^{3+}(aq) + 4Cl^-(aq) \rightarrow [AuCl_4]^-(aq)$The overall reaction is:$Au(s) + 3HNO_3(aq) + 4HCl(aq) \rightarrow H[AuCl_4](aq) + 3NO_2(g) + 3H_2O(l)$Thus,the final product formed is chloroauric acid,$HAuCl_4$.

What is the product formed when $Au$ reacts with aqua regia?

Similar Questions

Which of the following halogens forms the maximum number of oxoacids?

Discuss the anomalous behaviour of fluorine.

Which of the following compounds does not produce chlorine gas upon heating?

Among the following,which is the strongest oxidising agent?

The correct order of acidic strength of oxy-acids of chlorine is

Vedclass Test Series

Exam Paper Generator

Online Exam Module