1.

`H_(2)S` and `SO_(2)` can be distinguished by:A. Litmus paperB. `MnO_(4)^(-)`C. `(CH_(3)COO)_(2)Pb`D. none of these

Answer» Correct Answer - C
`H_(2)S,SO_(2)` both are acidic so cannot distinguish by litmus paper.
`MnO_(4)^(-)` oxidising agentt, so both are oxidised to `SO_(4)^(2-)`.
`Pb^(2+)+S^(2-)rarrPbS-("black ppt.")SO_(2)` will not give black precipitate so can be distinguished.


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