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An aqueous solution of a mixture of two inorganic salts, when treated with dilute `HCl`, gave a precipiate (P) and 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 coloured solution S containsA. `Fe_(2)(SO_(4))_(3)`B. `CuSO_(4)`C. `ZnSO_(4)`D. `Na_(2)CrO_(4)` |
Answer» Correct Answer - D |
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