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A black sulphide when treated with ozone becomes white. The white compound is :

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ZnSO₄

CaSO₄

BaSO₄

PbSO₄

answer is D.

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Detailed Solution

A black sulfide when treated with ozone becomes white. The white compound is PbSO4

$PbS + 4 O_{3} \to {PbSO}_{4} + 4 O_{2}$

black white

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