Compound A used as a strong oxidizing agent is amphoteric. It is a part of lead storage batteries. Compound A is:
Explanation for the correct option:
Option (B): is an inorganic oxide. It is amphoteric. It has an oxidation state of .Due to its high oxidation state it behaves as an oxidizing agent and it is part of a lead storage battery.
Explanation for the incorrect options:
Option (A): is not amphoteric and not a strong oxidizing agent.
Option (C): is not a good oxidizing agent.
Option(D): is in oxidation state, So it can't act as a strong oxidizing agent.
Hence option (B) is correct.