Qualitative Analysis of Group I Cations

Group I Cations

The analytical classification of cations consisting of lead(II) ($\text{Pb}^{2+}$), mercury(I) ($\text{Hg}_2^{2+}$), and silver(I) ($\text{Ag}^+$) which form insoluble precipitates with dilute hydrochloric acid.

Group I Reagent

Dilute hydrochloric acid ($\text{dil. HCl}$), utilized to selectively precipitate Group I cations from solution as insoluble chlorides.

Lead(

Ag

Hg