An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (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 ammonical medium. the precipitate R gave a coloured solution (S), when treated with H_(2)O_(2) in an aqueous NaOH medium. Q. The coloured solution S contains

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

1.	An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (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 ammonical medium. the precipitate R gave a coloured solution (S), when treated with H_(2)O_(2) in an aqueous NaOH medium. Q. The coloured solution S contains
Answer» `Fe_(2)(SO_(4))_(3)` `CuSO_(4)` `ZnSO_(4)` `Na_(2)CrO_(4)` Solution :