Chemistry - Complete P-block Question with Solution | TestHub

Aqua regia is ${\mathrm{HNO}}_3 : \mathrm{HCl}$

$1 : 3$

${\mathrm{HNO}}_3+3\mathrm{HCl} \to 2{\mathrm{H}}_2\mathrm{O}+\mathrm{NO}+3\left[\mathrm{Cl}\right]$

(i) $\mathrm{Au}+3\left[\mathrm{Cl}\right] \to {\mathrm{AuCl}}_3\stackrel{\mathrm{HCl}}{\to }{\mathrm{HAuCl}}_4$

(ii) $\mathrm{Pt}+4\left[\mathrm{Cl}\right] \to {\mathrm{PtCl}}_4 \stackrel{\mathrm{HCl}}{\to }{\mathrm{H}}_2{\mathrm{PtCl}}_6$