An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCI,
Channel: Doubtnut
Date: 2020-08-16

An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCI, gave a precipitate (P) and a filtrate (Q). The precipitate (P) was found to dissolved in hot water. The filtrate (Q) remained unchanged, when treated with `H_(2)S` in a dilute mineral acid medium. However, it gave a precipitatew (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 ------ while the colored solution (S) contains