H_(2)O_(2) is a powerful oxidisingagent. It is an electron acceptor in acidic as well as in alkaline medium. It can also act as reducing agent towards oxidising agents. In alkaline medium, the reducing nature of H_(2)O_(2) is even more effective In which of the following reactions H_(2)O_(2) acts as a reducing agent?

H_(2)O_(2) is a powerful oxidisingagent. It is an electron acceptor in

1.	H_(2)O_(2) is a powerful oxidisingagent. It is an electron acceptor in acidic as well as in alkaline medium. It can also act as reducing agent towards oxidising agents. In alkaline medium, the reducing nature of H_(2)O_(2) is even more effective In which of the following reactions H_(2)O_(2) acts as a reducing agent?
Answer» `PbO_(2)+H_(2)O_(2) to PBO+H_(2)O+O_(2)` `Na_(2)SO_(3)+H_(2)O_(2) to Na_(2)SO_(4)+H_(2)O` `2KI+H_(2)O_(2) to 2KOH+I_(2)` `KNO_(2)+H_(2)O_(2) to KNO_(3)+H_(2)O` SOLUTION :(a) `H_(2)O_(2)` REDUCES `PbO_(2) "to" PbO`.