Question

03. Name the substance oxidized reduced oxidizing agent, reducing agent in the
following Pb(s) + 4H20(aq)-> PbSO4s)-4-201)​

Answer 1

Answer

PbS+4H 2O2 →PbSO4+4H2O.

Oxidised : PbS. The oxidation number of S increases from -2 to +6. Thus, S itself is oxidised and acts as reducing agent.

Reduced: H2 O2

The oxidation number of O decreases from -1 to -2. Thus, O itself is reduced and acts as oxidising agent.

Note:

Any species that is oxidised acts as reducing agent.

Any species that is reduced acts as oxidising agent.