An aqueous solution of a mixture of two inorganic saits, when treated with dilute HCl. gave a precipilate (P) and a filtrate (Q). The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H_(2)S in a dilute mineral acid medium. However, it gave a precipitate (R) with H_(2)S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H_(2)O_(2) in an aqueous NaOH medium. The precipitate P contains

An aqueous solution of a mixture of two inorganic saits, when treated

1.	An aqueous solution of a mixture of two inorganic saits, when treated with dilute HCl. gave a precipilate (P) and a filtrate (Q). The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H_(2)S in a dilute mineral acid medium. However, it gave a precipitate (R) with H_(2)S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H_(2)O_(2) in an aqueous NaOH medium. The precipitate P contains
Answer» `Pb^(2+)` `Hg_(2)^(2+)` `AG^(+)` `Hg^(2+)` Solution :`{:(Pb^(2+)+Cr^(3+) OVERSET("DIL. HCl")(rarr)PbCl_(2) DARR +CrCl_(3)(Q)),("WHITE ppt."),("soluble in hot"),("water insoluble in"),("cold"):}`