Question

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

• A. $ZnS{O}_4$
• B. $CaS{O}_4$
• C. $BaS{O}_4$
• D. $PbS{O}_4$

Answer 1

The correct option is D $PbS{O}_4$

A black sulphide when treated with ozone becomes white. The white compound is $PbS{O}_4$

$PbS+4O_3\to PbS{O}_4+4O_2$
(Black)

Hence option D is correct.