Question

PbO2 acts as oxidising agent. Why?

Answer 1

it has the ability tooxidize other substances — in other words to cause them to lose electrons....
that the reason why it acts as an oxidizing agent....
hope this will help you.....

Answer 2

$PbO_2$ acts as an oxidizing agent as it undergoes reduction.

Explanation:

• The main concept involved in this concept is that, the substance which undergoes reduction is called oxidizing agent.
• In the given case, Pb is the element which belongs to $6^{th}$ period in the periodic table.
• Due to the inert pair effect which occurs due to the availability of electrons in the inner d and f orbitals, Pb in its +4 oxidation state is highly unstable.
• But Pb is highly stable in the +2 oxidation state. Thus to attain this stability, it readily gains electron and undergoes reduction. As it is exhibiting reduction, it is considered as oxidizing agent.

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