1.

which of the following reactions depicts the reducing action of H_(2)O_(2)?

Answer»

`2MnO_(4)^(-) + 6H^(+) + 5H_(2)O_(2) to 2Mn^(2+) + 5O_(2) + 8H_(2)O`
`2I^(-) + 2H^(+) + H_(2)O_(2) to I_(2) + H_(2)O`
`C_(6)H_(6) + H_(2)O_(2) to C_(6)H_(5)OH + H_(2)O`
`PbS + 4H_(2)O_(2) to PbSO_(4) + 4H_(2)O`

SOLUTION :`2MnO_(4)^(-)+6H^(+)+5H_(2)O_(2)rarr 2Mn^(+)+8H_(2)O+5O_(2)`
`or 2KMnO_(4)+3H_(2)SO_(4)+5H_(2)O_(2)rarr K_(2)SO_(4)+2MnSO_(4)+8H_(2)O+5O_(2)`


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