Thank you
:-)
The metals soluble in aqua regia is/are
a)Pt
b)Au
c)Ag
d)Cu
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4 Answers
aieeee
·2009-09-16 19:19:56
ya,i too think so.
but,another factor dat the relative solubility of Ag and Au is too high than solubility of other 2 metals , as Ag and Au are soluble forming soluble complexes wid aqua regia.
Atomic chlorine forms metallic chloride with gold.
Au + 3[Cl]- → AuCl3
Metallic chloride then reacts with HCl to produce hydrometallic chloride.
AuCl3 + HCl → H+[AuCl4]-
Hydrometallic chloride is soluble in aqua regia.