Mixture is heated with dil. H_(2)SO_(4) and the lead acetate paper tur – InterviewSolution

1.	Mixture is heated with dil. H_(2)SO_(4) and the lead acetate paper turns black by the evolved gases. The mixture contains
Answer» Sulphite Sulphide Sulphate Thiosulphate Solution :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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