Write two oxidizing and two reducing properties of `H_(2)O_(2)`.

Explanation

Hydrogen peroxide can act as both oxidising and reducing agent in both acid and basic medium.
Oxidation properties,
`H_(2)O_(2)+2H^(+)+2e^(-)overset("Acid")(to)2H_(2)O,E^(@)=+1.77V`
`H_(2)O_(2)+2e^(-)overset("base")(to)2OH^(-),E^(@)=+087V`
Eg: `H_(2)O_(2)` oxidises PbS to`PbSO_(4)` in acid medium
`PbS+4H_(2)O_(2)toPbSO_(4)+4H_(2)O`
`H_(2)O_(2)` oxidises for maldehyde to formic acid in basic medium.
`2HCHO+H_(2)O_(2)to2HCOOH+H_(2)`
Reduction properties
`H_(2)O_(2)overset("Acid")(to)2H^(+)+O_(2)+2e^(-)`
`H_(2)O_(2)+2OH^(-)overset("Base")(to)2H_(2)O+O_(2)`
Eg: `H_(2)O_(2)` reduces acidified potassium permanganate in acid medium.
`2KMnO_(4)+3H_(2)O_(4)+5H_(2)O_(2)toK_(2)SO_(4)`
`+2MnSO_(4)+8H_(2)O+5O_(2)`
`H_(2)O_(2)` reduces potassium ferrycyanide in basic medium.
`2K_(3)[Fe(CN_(6)]+2KOH+H_(2)O_(2)to`
`2K_(4)[Fe(CN)_(6)]+2H_(2)O+O_(2)`