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Mixture is heated with dil. `H_(2)SO_(4)` and the lead acetate paper turns black by the evolved gases. The mixture contains

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Mixture is heated with dil. `H_(2)SO_(4)` and the lead acetate paper turns black by the evolved gases. The mixture contains
A. Sulphite
B. Sulphide
C. Sulphate
D. Thiosulphate
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1 Answer

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Correct Answer - B
It must be sulphide as
`Pb(CH_(3)COO)_(2)+H_(2)S to underset("black ppt.")(PbS)+2CH_(3)COOH`
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