A black sulphide when treated with ozone becomes white. The white comp – InterviewSolution

1.	A black sulphide when treated with ozone becomes white. The white compound is :
Answer» `ZnSO_(4)` `CaSO_(4)` `BaSO_(4)` `PbSO_(4)` Solution :`PbS +4O_(3) to PbSO_(4)+4O_(2)`

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