Question

What main product is formed when h2o2 reacts with pbs in acidic medium?

Answer 1

H2O2 oxidises the sulphide in PbS(black) to give PbSO4(white).

This is what is used in some painting restorations.

In the olden days painters used lead sulphate as white paint, but over log period of time, it can be reduced by air to PbS.

Answer 2

pbs + 4h2o2--->pbso4 + 4h2o



this is ur answer ..