`Na_(2)SO_(4)` and `Na_(2)S` can be distinguished from each other by using:A. dilute `H_(2)SO_(4)`B. acidified `KMnO_(4)` solutionC. sodium nitroprusside solutionD. cadmium acetate solution

`Na_(2)SO_(4)` and `Na_(2)S` can be distinguished from each other by u

1.	`Na_(2)SO_(4)` and `Na_(2)S` can be distinguished from each other by using:A. dilute `H_(2)SO_(4)`B. acidified `KMnO_(4)` solutionC. sodium nitroprusside solutionD. cadmium acetate solution
Answer» Correct Answer - A,B,C,D (A)`Na_(2)S+H^(+)toH_(2)Suarr+2Na^(+).,Na_(2)SO_(4)` gives no reaction with `H_(2)SO_(4)` (B)`2MnO_(4)^(-)`(pink solution)+`5H_(2)S+6H^(+) to 2Mn^(2+)` (colourless) +`5S darr +8H_(2)O` No colour change is observed with `Na_(2)SO_(4)` ( C)`S^(2-)+[Fe(CN)_(5)NO]^(2-) to [Fe(CN)_(5)NOS]^(4-)` (purple or violet colouration) No colour change is observed with `Na_(2)SO_(4)` (D)`S^(2-)+Cd^(2+) to CdS darr` (yellow). `Na_(2)SO_(4)` forms `CdSO_(4)` which is water soluble.

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`Na_(2)SO_(4)` and `Na_(2)S` can be distinguished from each other by using:A. dilute `H_(2)SO_(4)`B. acidified `KMnO_(4)` solutionC. sodium nitroprusside solutionD. cadmium acetate solution

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